BMW Internal Engine Parts for BMW 3 Series E30 (1984-1991)

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Rebuilding your engine or giving your cylinder head an overhaul? Internal engine components covers parts that are located within the engine block and cylinder head. Examples include: timing chains and tensioners, rocker arms, rod bolts and studs, head bolts, valve springs, connecting rods, and more. These are Genuine BMW engine parts, performance upgrades, or approved aftermarket brands that have a long track record of reliability and quality.

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Rocker Arm Shaft - Priced Each
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MTC - Corporate Logo
T#:371121
Part#: 11331264533
Ships in 5 Business Days
$ 36.99

This product was last offered at the strikethrough price on
05-07-2026

$ 35.99 USD
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$ 35.99 USD
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CP-CARRILLO Connecting Rod Set - WMC Rod Bolts - BMW E30 M3 S14 ...
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CP Carrillo - Corporate Logo
T#:10128443
Part#: CAR-CRS-S14-WMC
Ships on Jul 22, 2026
$ 1,149.99 USD
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Carrillo connecting rods are well known within pro racing and street performance circles for good reason; they produce a premium product that winning racers around the world depend on. Quality and pride go hand-in-hand at Carrillo Industries. Manufacturing a Carrillo rod is much more than cutting and forging, meeting production goals and shipping deadlines. Every Carrillo rod is made with the goal of winning in mind and the Carrillo rods are a proven performers in both street and racing S14 engines. Carillo's fasteners and "Carrilloy" rods has proven popular with all racers who want the best. Special Chrome-Moly based alloy Forged Rods Lightweight Design for low mass Vs. Stock Strong and proven in racing Excellent quality control Tight tolerances and balancing Includes High Quality Non-stretch WMC Rod Bolts Tech Notes: WMC Bolts are the standard hardware included and are an excellent fastener. For extreme output applications and all-out racing, the CARR bolt option holds maximum RPMs and HP levels.
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Schrick Camshaft - M20 288 degree
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Schrick - Corporate Logo
T#:3501
Part#: 05601880-00
Ships on Oct 22, 2026
$ 490.00 USD
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$ 490.00 USD
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SEE T#338236

Genuine BMW Rocker Arm Shaft - 11331274975
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Genuine BMW - Corporate Logo
T#:222758
Part#: 11331274975
Back Ordered
$ 97.99 USD
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$ 97.99 USD
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Genuine BMW Rocker Arm Shaft - 11331274975

This item fits the following BMW Engines:



Glyco Main Bearing Set (Standard) - E21, E28, E30
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Features All Single-Tang Main Bearings for Earlier M20 Engines
Glyco - Corporate Logo
T#:1196183
Part#: 11211722342
In Stock
$ 259.99

This product was last offered at the strikethrough price on
05-03-2026

$ 252.99 USD
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$ 252.99 USD
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Motorsport Valve Springs - E30 M3, E24 M6, E34 M5, E36 Euro M3 (Price...
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Genuine BMW - Corporate Logo
T#:281
Part#: 11341315912
In Stock
1% off MSRP $ 40.13

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$ 39.85 USD
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1% off MSRP
$ 40.13

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 39.85 USD
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These Motorsport valve springs are from the Sport Evo 3 model but can be used in all E30 M3s (and others). We found that the stock original valve springs can be too weak when used with upgraded cams and this genuine BMW Motorsport part is an upgrade over the original design. Valve springs also get weaker over time so these are the perfect replacement when refreshing the S14 cylinder head. A weak spring can lead to a burnt valve seat or even a bent valve. These are also the stock springs in the M88/S38 and Euro S50B30.

Priced per valve (price includes 1 inner and 1 outer).

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Main Bearing Set - Standard Size - E30 M3 2.3 liter
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Glyco - Corporate Logo
T#:3166
Part#: 11210666110
In Stock
$ 99.99

This product was last offered at the strikethrough price on
05-02-2026

$ 87.99 USD
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$ 99.99

This product was last offered at the strikethrough price on
05-02-2026

$ 87.99 USD
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This E30 M3 Main bearing set is in standard size for the 2.3 liter S14 engine. This main bearing kit includes the thrust bearings.

This item fits the following BMWs:
1988-1991 E30 BMW M3
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Crankshaft Thrust Bearing - Green - E28, E30, E34, E36, E39, E46, Z3,...
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Genuine BMW - Corporate Logo
T#:19143
Part#: 11211706830
In Stock
Sale - Save 28% $ 69.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 50.45 USD
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Sale - Save 28%
$ 69.99

This product was last offered at the strikethrough price on
05-02-2026

$ 50.45 USD
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Genuine BMW Guide-Bearing Shell Green - 60,00Mm(0)
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E30,E34,E36,E39,E46,E85 Z4,E86 Z4

Fits BMW Engines including:
M20,M42,M50,M52,S50,S52,S54

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Crankshaft Thrust Bearing - Green - E28, E30, E34, E36, E39, E46, Z3,...
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Genuine BMW - Corporate Logo
T#:32543
Part#: 11212241935
In Stock
Sale - Save 22% $ 44.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 34.95 USD
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Sale - Save 22%
$ 44.99

This product was last offered at the strikethrough price on
05-02-2026

$ 34.95 USD
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Genuine BMW Guide-Bearing Shell Green - 60,00Mm(0)
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E30,E34,E36,E39,E46,E85 Z4,E86 Z4

Fits BMW Engines including:
M20,M50,M52,S50,S52,S54

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WPC Treated Main Bearing Set - Standard Size - E30 M3 2.3 Liter ...
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ECS - Corporate Logo
T#:13299324
Part#: 11210666110WP2KT
In Stock
$ 174.99 USD
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Hella Crankshaft Bearing Set - Standard Size - 55.0mm
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Hella - Corporate Logo
T#:27638781
Part#: 11210666100
In Stock at Vendor
$ 143.99

This product was last offered at the strikethrough price on
05-07-2026

$ 139.99 USD
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$ 139.99 USD
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Often called main bearings, crankshaft bearing shells sit between the rotating assembly and the engine block. They allow the crankshaft to rotate freely, but are prone to wear from deterioration and lack of lubrication.

This complete set consists of nine bearings, enough to fill each journal.

If you're overhauling your M10, choose Hella crankshaft-bearing shells for a lasting solution.

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Glyco "Yellow" Crankshaft Bearing Shell - Set - E30, E36, E39, E46, E...
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Glyco - Corporate Logo
T#:375824
Part#: 11211706850
In Stock at Vendor
$ 126.61 USD
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$ 126.61 USD
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59.75MM(+0.25) bore


Rein Piston Rings - Set - Single Piston - E30, E36
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591604
Part#: 11251727461
Ships in 3 Business Days
$ 31.99 USD
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Replace your worn out piston rings with OE replacements - 84.000mm
Cynlider Head Gasket
1,80MM(+0,3)
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Victor Reinz - Corporate Logo
T#:13957889
Part#: 11121734214
In Stock at Vendor
$ 126.09 USD
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$ 126.09 USD
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Febi Camshaft - E30, E34
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We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:19082
Part#: 11311716138
In Stock at Vendor
$ 368.34

This product was last offered at the strikethrough price on
05-15-2026

$ 292.43 USD
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$ 292.43 USD
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CAMSHAFT 11311716138 Manufactured by Febi

This item fits the following BMWs:
BMW 3 Series - 325i, 325i Convertible, 325is, 325ix
BMW 5 Series - 525i

--.
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ARP Main Stud Kit, BMW S14
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ARP - Corporate Logo
T#:28537458
Part#: ARP-MSK-S14
Ships in 3 Business Days
$ 119.99 USD
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This ARP Main Stud Kit is designed to replace BMW 11111735525 for the S14 B20, S14B23, S14B25, S14B27 engines found in the E30 M3. One significant advantage of these main studs is their ability to prevent main cap walk, which can occur when the main caps shift or move out of position, potentially causing damage to the engine. In addition, ARP Main Studs can safeguard the threads of your engine block, providing an extra layer of protection against potential damage. When opting for main studs instead of factory bolts, it's important to note that the engine builder should mic the bores. Using studs may require a line hone to ensure proper fitment and alignment. A line hone is a machining process that can be used to resize and reshape the main bearing bores, ensuring that they are perfectly round and concentric. This is crucial for ensuring proper oil clearance and preventing premature bearing wear. By mic'ing the bores and performing a line hone if necessary, engine builders can ensure that the main studs are installed correctly and that the engine will perform reliably and at its best.
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CP Carrillo Forged Piston Set - BMW M20B25
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VAC Motorsports - Corporate Logo
T#:23847551
Part#: CP-FPS-M20-B25
Ships in 2 Business Days
$ 1,399.99 USD
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Elevate Your Engine's Performance with Customizable CP Pistons

When it comes to optimizing your engine's performance, flexibility is key. That's why we offer a range of CP pistons with customizable compression ratios to cater to your specific needs. Whether you're embarking on a basic engine rebuild, planning to implement a low boost turbo or supercharger, or aiming to maximize power with high-performance camshafts, we have the ideal piston solution for you.

Our collaboration with CP ensures that you'll receive pistons of the highest quality, meticulously designed to meet the most demanding expectations. These pistons are a top choice for high-performance and racing engines.

We maintain a diverse selection of compression ratios in stock, making it convenient to find the right fit for your project. And if you require a custom piston application, our efficient service has you covered.

  • BORE: 84mm
  • Rod Length: 135mm
  • Compression Ratio: 8.5:1
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Rod Bearing Set (+0.25)
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Glyco - Corporate Logo
T#:23748157
Part#: 112412848516CYL-
Ships in 1 Business Day
$ 331.13 USD
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Head Bolt Set - E30 E36 M42 M44 318i 318is, Z3 1.9
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Victor Reinz - Corporate Logo
T#:19403
Part#: 11121721939
Ships in 1-2 days
$ 54.58 USD
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Replacing a head gasket? The M42 /M44 engine cylinder head bolts stretch when installed and as a result cannot be re-used. Replace you head bolts with this set of 10 head bolts.

If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time.​

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic
1997-1998 Z3 BMW Z3 1.9
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E30 M3 Crank Gear
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Genuine BMW - Corporate Logo
T#:182
Part#: 11211308467
Ships in 4 Business Days
3% off MSRP $ 197.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 192.99 USD
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3% off MSRP
$ 197.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 192.99 USD
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E30 M3 Crank Gear. Typically replaced when it is worn due to timing chain slop. We recommend changing this when performing an engine rebuild.

E30 M3 Head Bolt Set
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Genuine BMW - Corporate Logo
T#:283
Part#: TMS283
Ships in 3 Business Days
$ 259.99 USD
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$ 259.99 USD
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The E30 M3 Head Bolt Set includes 10 head bolts.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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Genuine BMW Crank Timing Sprocket - M42 M44
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Genuine BMW - Corporate Logo
T#:32339
Part#: 11211247338
Ships in 5 Business Days
2% off MSRP $ 166.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 162.99 USD
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2% off MSRP
$ 166.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 162.99 USD
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Genuine BMW Sprocket -
This item fits the following BMW Chassis:
E30,E36

Fits BMW Engines including:
M42,M44

Genuine BMW Crankshaft Timing Gear - 11211284940 - E30,E34
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Genuine BMW - Corporate Logo
T#:12916
Part#: 11211284940
Ships in 6 Business Days
$ 72.99 USD
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$ 72.99 USD
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Through years of working on the E30 chassis, we have found that replacing the Crankshaft Timing Gear when doing your timing service is often a good idea. Replace yours with a Genuine BMW Crankshaft gear today.


This item fits the following BMW Chassis:
E30,E34

Fits BMW Engines including:
M20
 

 

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E30 M3 Rod Bolt Set
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Genuine BMW - Corporate Logo
T#:284
Part#: 11241307140KIT
Ships in 5 Business Days
$ 159.92 USD
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$ 159.92 USD
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The E30 M3 Rod Bolt Set includes 8 bolts.


Genuine BMW Camshaft Adapter Bolt (10 X 35 mm) (Torx Head) - E28 E30 ...
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Genuine BMW - Corporate Logo
T#:33908
Part#: 11311715412
Ships in 6 Business Days
4% off MSRP $ 23.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 22.99 USD
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4% off MSRP
$ 23.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 22.99 USD
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Genuine BMW Torx Bolt - M10X35
This item fits the following BMW Chassis:
E30,E34

Fits BMW Engines including:
M20

Genuine BMW Adapter - M20
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Genuine BMW - Corporate Logo
T#:33903
Part#: 11311713064
Ships in 6 Business Days
2% off MSRP $ 55.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
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2% off MSRP
$ 55.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 54.99 USD
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Genuine BMW Adapter -
This item fits the following BMW Chassis:
E30,E34

Fits BMW Engines including:
M20

Genuine BMW Main Bearing - Priced each(Standard) - E28 E30 E21 ...
For vehicles with production date up to 02/88
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Genuine BMW - Corporate Logo
T#:32471
Part#: 11211722342
Ships in 8 Business Days
3% off MSRP $ 38.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 37.99 USD
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3% off MSRP
$ 38.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 37.99 USD
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Genuine BMW Bearing Shell Yellow - 60,00mm(0)
This item fits the following BMW Chassis:
E30

Fits BMW Engines including:
M20


King Performance BMW S54 Main Bearings - .25 Oversize
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King - Corporate Logo
T#:25706120
Part#: MB7039AM0.25
Ships in 6 Business Days
$ 178.99 USD
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Replace your worn out OE main bearings with King's .25 Oversize Performance S54 Main Bearing Set!

BMW M10 Engine ARP Head Stud Kit - 2002, E21 320i, E30 318i
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ARP - Corporate Logo
T#:189784
Part#: 201-4601
Ships in 8 Business Days
$ 196.99 USD
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$ 196.99 USD
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Virtually every top professional BMW engine builder relies on ARP Pro Series head studs. ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Each stud is heat-treated to 200,000 psi, ensuring complete heat penetration. ARP studs are threaded after heat-treat, which gives them 1000% (that's ten times!) better fatigue strength than studs threaded prior to heat-treat. Threading the studs after heat-treating is more difficult and costly (as it's harder on tooling) but the results are well worth the effort. These simply are the best head studs we've found and we highly recommend them in both racing and forced induction applications. Due to the additional clamping force between the head and block, these are IDEAL for turbocharged engines.

Converting from the factory BMW head bolts to head studs makes it much easier to assemble an engine, especially a racing powerplant which must be serviced frequently (and quickly!), and also ensures proper alignment of the head and gasket. Head studs also provide more accurate and consistent torque loading. Here's why: When you use bolts to secure the head, the fastener is actually being "twisted" while it's being torqued to the proper reading. Accordingly, the bolt is reacting to two different forces simultaneously. A head stud should be installed in a "relaxed" mode -- never crank it in tightly using a jammed nut. If everything is right, the stud should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only on the vertical axis. An information sheet is provided with each set.

This item fits the following BMWs:
1970-1976 2002 BMW 1600 2002 2002tii
1977-1983 E21 BMW 320i
1984-1985 E30 BMW 318i
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Supertech Upgraded Valve Stem Seal Kit - BMW S14 2.3L
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Supertech - Corporate Logo
T#:641031
Part#: VS-VW7-S14KT
Ships in 8 Business Days
$ 33.99 USD
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Includes a full set of polyacrylic intake and viton exhaust valve stem seals! Looking to replace your valve stem seals due to leaks, cracks, splits, or even during an upgrade of your camshafts, valve springs, or valves? Supertech valve stem seals are the way to go! This cheap but effective seal replaces the stock BMW seals that are notoriously prone to issues due to heat cycles and chemicals which cause the seals to become weak and brittle. Supertech seals offer a significantly longer life span and are resistant to both heat and chemicals thanks to their use of Viton or Polyacrylic construction (dependant on valve type). That means less time in the garage and more time on the street or track! These seals are also great for anyone who is looking to upgrade to dual valve springs thanks to the seal's overall thinner outer diameter! Guide OD: 9.8mm/.385" Seal OD: 13.2mm/.520"
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CP-CARRILLO Connecting Rod Set - CARR Rod Bolts - BMW E30 M3 S14 ...
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CP Carrillo - Corporate Logo
T#:10128444
Part#: CAR-CRS-S14-CARR
Ships on Jul 22, 2026
$ 1,439.99 USD
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$ 1,439.99 USD
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Carrillo connecting rods are well known within pro racing and street performance circles for good reason; they produce a premium product that winning racers around the world depend on. Quality and pride go hand-in-hand at Carrillo Industries. Manufacturing a Carrillo rod is much more than cutting and forging, meeting production goals and shipping deadlines. Every Carrillo rod is made with the goal of winning in mind and the Carrillo rods are a proven performers in both street and racing S14 engines. Carillo's fasteners and "Carrilloy" rods has proven popular with all racers who want the best. Special Chrome-Moly based alloy Forged Rods Lightweight Design for low mass Vs. Stock Strong and proven in racing Excellent quality control Tight tolerances and balancing Includes High Quality Non-stretch CARR Rod Bolts Tech Notes: WMC Bolts are the standard hardware included and are an excellent fastener. For extreme output applications and all-out racing, the CARR bolt option holds maximum RPMs and HP levels.
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ARP Rod Bolt Set - M20 - 53mm
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VAC Motorsports - Corporate Logo
T#:1061435
Part#: ARP-RBS-M20
Ships on Jul 22, 2026
$ 314.99 USD
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$ 314.99 USD
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ARP, the world’s leader in fastener technology. There is no substitute for the best! Planning to boost your M20? Building a high HP stroker engine? This rod bolt kit is for you! This kit provides higher strength, more clamping power, and the option to re-use the hardware unlike your OEM bolts. We run these in many of our own builds as well and are 110% satisfied with the fit and finish of these ARP bolts. We offer a 53mm UHL version for those running OEM M20 rods or a 44mm UHL version for those who have upgraded to S50/S52 OEM rods.
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ARP Connecting Rod Bolt Kit - M10 1.8L
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ARP - Corporate Logo
T#:554123
Part#: 201-6304
Ships on Jul 22, 2026
$ 119.99 USD
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$ 119.99 USD
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Set of 12 ProSeries connecting rod bolts, made by ARP -- the world leader in fastener technology. Each bolt is made of ARP2000 material, which exceeds the strength of 8740 Chrome Moly, and is able to achieve clamp load at 220,000psi. ARP2000 fasteners are used widely in motorsport and drag racing as an upgrade from 8740 Chrome Moly in both steel and aluminum rods. These are simply the best connecting rod bolts available, making them ideal for ultra high performance, racing and forced induction applications.

ARP is a company that prides itself on performance and durability, no matter the application. Offering the finest engine hardware money can buy is the driving initiative at ARP and this is evidenced by the staggering amount of satisfied customers and race teams the world over.

This item fits the following BMW Engines: 
M10 1.8L

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VAC Motorsports Performance Coated Rod Bearing Set - BMW E30 M3 S14 ...
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VAC Motorsports - Corporate Logo
T#:638307
Part#: VAC-HPRBS-S14STD
Ships on Jul 22, 2026
$ 249.99 USD
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VAC Rod Bearing Sets are specially coated to reduce friction to a minimum; enabling lower temps and faster revolutions in your expensive S14 engine. The coated bearings are thermal breakdown resistant, helping to prevent premature engine failures under stress when things are most critical. The rod bearing area is a common stress area in the S14, these bearings can last much longer than any normal bearing sets and are used in all of VAC's highest performance BMW engine builds. These bearings have become a favorite product of all of VAC's race and engine building customers around the globe who have reported unparalleled wear characteristics under all conditions. Made for VAC by the same company who manufactures for the US military, NASCAR teams, and other customers that require "mission-critical" quality. If you are looking for high-performance rod bearings, this is the set for your S14. VAC Tech Notes: As with all bearings, please check your tolerances and size before installation. Due to the specialized tools needed, professional install recommended. There are no returns available on any engine bearings.
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Cylinder Head - Bare - E30 325i, E34 525i, M20 engine
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AMC - Corporate Logo
T#:22168
Part#: 11121707032
Ships on Jul 29, 2026
$ 999.00 USD
$ 999.00 USD
This replacement cylinder head for BMW M20B25 6 cylinder engine includes new valve guides and seals. The stock valve guides are not replaceable so if you need new guides you likely need a new cylinder head.This cylinder head is manufactured in Spain by Amadeo Marti Carbonell, a company that meets or exceeds the ISO 4000, ISO 9000 and TS-16949 standards so you can be assured of a quality part.BMW has discontinued this part so this is the only current source for M20 cylinder heads.

This item fits the following BMWs:
1988 E30 BMW 325e 325es
1987-1991 E30 BMW 325i 325ic 325is 325ix
1988 E28 BMW 528e
1989-1990 E34 BMW 525i
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Complete Cylinder Head Basic Replacement Kit M20 2.5L / 2.7L ...
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Packaged by Turner - Corporate Logo
T#:22822554
Part#: E30HEADRPLCKT
Ships in 8 Business Days
Sale - Save 1% $ 1,607.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,590.95 USD
Sale - Save 1%
$ 1,607.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,590.95 USD
Upgrade your BMW M20 2.5L and 2.7L engine with our Complete Cylinder Head Basic Replacement Kit . This kit includes the following essential components:
  • Cylinder Head Washer
  • BMW Coolant / Antifreeze - 1 gallon
  • Copper Exhaust Lock Nut
  • Oil Filter
  • Cylinder Head Bolt Set
  • Engine Oil Drain Plug Washer
  • Dielectric Spark Plug Boot Protector
  • BMW TwinPower Turbo 5W-30 Engine Oil
  • Cylinder Head Gasket
  • Assembly Lube - 4 oz
  • Engine Oil Drain Plug
  • M20 Cylinder Head - complete
Ensure a seamless and efficient replacement process for optimal performance.
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BMW E28 / E30 / E43 - M20 Complete Cylinder Head Basic Replacement Ki...
Upgrade to the less restrictive cylinder head found on the M20 2.5L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:2810081
Part#: 11121707032-3KT
Ships in 8 Business Days
Sale - Save 1% $ 1,614.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,598.57 USD
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Sale - Save 1%
$ 1,614.99

This product was last offered at the strikethrough price on
05-03-2026

$ 1,598.57 USD
Free Shipping
Includes all of the necessary components to service and replace the head on your M20 powered BMW
E30 M3 2.5L Turner/Wiseco 11.25:1 Piston Set
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Wiseco - Corporate Logo
T#:339073
Part#: WISECO2.5
Ships on Aug 14, 2026
Starting at $ 699.80 USD
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Starting at $ 699.80 USD
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The TMS/Wiseco 11.25:1 piston set was designed for use with the Evo3 2.5 liter crank and 2.3 connectig rods. The pistons are 95mm bore. Each set comes with rings, wrist pins and clips. Now also available in a +.25mm Overbore!

For seventy five years, Wiseco has been the piston of choice when it’s time to replace engine internals. To this day Wisco is one of the sole manufacturers of forged pistons within the United States and continues develop new and exciting products everyday.

Piston Specs:
Comp Height = 1.200
Bore Size = 3.7400 (as measured on piston skirt, 1.3" below oil ring)
Suggested Clearance = .0040
Weight = 388-389g (varies piston to piston)
Valve Pocket Dia. = 1.60 (i) / 1.40 (e)
Valve Pocket Angle = 18 (i) / 19.50 (e)
Depth from TE = -.1050 (i) / -.1350 (e)

This item fits the following BMWs:
1987-1991 E30 BMW M3 with Turner 2.5 Kit
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Wiseco Forged Piston & Ring Set - E30 M3 2.3 Liter - 3.720 Inch Bore ...
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Wiseco - Corporate Logo
T#:387797
Part#: TEN300623SKT
Ships on Aug 17, 2026
$ 699.00 USD
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$ 699.00 USD
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Wiseco BMW E30 M3 Piston set - 3.720" bore. Wiseco leads the performance aftermarket by producing the highest quality forged pistons. Extreme racing conditions demand the strength and toughness that only forged pistons can offer. Compared to cast pistons, forgings are tougher and more durable and will stand up to the abuse that high-performance motorsport applications require. Each set comes with rings, wrist pins, and clips. Born over 80 years ago from the passion for racing, Wiseco is a world leader in manufacturing high-performance, forged pistons for the motorcycle, automotive, ATV, snowmobile, personal watercraft, and outboard marine markets. The Wiseco crew shares the same level of dedication to motorsports as their customers and are focused on continually refining the quality and practices it takes to exceed expectations. Engineered, forged, and machined on cutting-edge equipment in the U.S. at Wiseco’s Mentor, Ohio manufacturing facility, Wiseco pistons are the undisputed leader in quality and performance. Wiseco Performance Products, built for racers, by racers. Bore Diameter - 94.50 Compression Height - 32.00 Forging Type - Full Round Oil Ring Thickness2.8 Piston Material - 2618 Piston Pin Included - Yes Piston Pin Material - 9310 Piston Volume - -32.00 Product Series - European Product Types - Piston Kits Ringset Included - Yes Second Compression Ring Thickness - 1.2 Skirt Coating - Y Top Compression Ring Thickness - 1.0 Wrist Pin Diameter - 0.866 Wrist Pin Style - Floating This item fits the following BMWs: 1988-1991 E30 BMW M3 2.3 liter
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Cat Cams Sport Camshaft set 257/257 9.90mm/9.90mm - E30 318i E36 318i...
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Cat Cams - Corporate Logo
T#:578593
Part#: 1301411
Special Order: No Guaranteed ETA
$ 1,051.99 USD
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$ 1,051.99 USD
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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.

Cat cams Sport Camshaft set - 279/275 11.45mm/10.95mm lift - E30 M3 ...
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Cat Cams - Corporate Logo
T#:578578
Part#: 1300657
Special Order: No Guaranteed ETA
$ 933.99 USD
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$ 933.99 USD
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Made in Belgium, Cat Cams offer great performance at a reasonable price. Cat Cam offers cams in most popular enthusiast upgrade specs to ensure there is a option for what ever your power goal is.
CP Carrillo Forged Piston Set - 94mm Bore, 11:1 Compression Ratio - E...
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CP Carrillo - Corporate Logo
T#:637130
Part#: CP-FPS-S14-2.3A
Special Order: No Guaranteed ETA
$ 899.99 USD
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$ 899.99 USD
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Pistons are the backbone of any true hardcore racing engine and that’s where CP-Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering, Design Experience and Flexibility, Analysis and R&D. As in racing, it takes a lot to be number one; here at CP-Carrillo we have it all and are number one in piston design, enabling our customers to come in first on race day.
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E24 M6, E28 M5, E30 M3 Evo Cam Gear - BMW Motorsport
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Packaged by Turner - Corporate Logo
T#:337970
Part#: 11311312535
Ships on Sep 17, 2026
$ 360.99

This product was last offered at the strikethrough price on
03-25-2026

Starting at $ 341.99 USD
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Starting at $ 341.99 USD
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The BMW Motorsport Cam Gear retards the exhaust camshaft of the 88-91 M3 and 88-89 M5 and M6. This allows for better exhaust scavenging, which in turn gives a moderate torque increase. This is very useful in day-to-day driving. This cam gear came stock on the EVO2 M3. (+11 lb./ft torque increase at 3000 rpm on M3 and +22 lb./ft on a M5/M6). Kit includes Cam gear and valve cover gaskets. Better acceleration and improved torque for your M5/M6

This item fits the following BMWs:
1988-1991 E30 BMW M3
1988 E28 BMW M5
1987-1989 E24 BMW M6
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Schrick Valve Spring Set - E30 325i M20 engine
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Schrick - Corporate Logo
T#:4791
Part#: 005602022-062
Ships on Oct 22, 2026
$ 917.99 USD
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$ 917.99 USD
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This Schrick valve spring set includes both the inner and outer valve springs for BMW's with the M20 6 cylinder engine. Designed for use with 272-284-288 degree camshafts. It is important to use Schrick Valve springs when installing camshafts with higher lift.

This item fits the following BMWs:
1987-1991 E30 BMW 325i 325ic 325is 325ix
1989-1990 E34 BMW 525i
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Schrick Camshaft - E30 325i, E34 525 (M20) 284 degree
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Schrick - Corporate Logo
T#:338235
Part#: 05601840-00
Ships on Oct 22, 2026
Starting at $ 479.00 USD
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Starting at $ 479.00 USD
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E30 325i, E34 525 (M20) 284 degree Schrick Camshaft. This is Step 2 in Schrick's line of performance cams. The 284 degree cam will be great for owners who want to retain their driveability on the street and only need a modest boost in top-end RPM. Schrick recommends replacing the valve springs with high-performance springs for this application.

BMW Schrick Technical Specs Schrick Technical Information / Specs
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Schrick Camshaft - E30 325i, E34 525 (M20) 288 degree
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Schrick - Corporate Logo
T#:338236
Part#: 05601880-00
Ships on Oct 22, 2026
Starting at $ 490.00 USD
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Starting at $ 490.00 USD
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E30 325i, E34 525 (M20) 288 degree Schrick Camshaft. This is Step 3 in Schrick's line of performance cams and the best balance of power and driveability. Expect a big boost of power at the top end but a slight loss in low-end torque. Schrick recommends replacing the valve springs with their own for this application.

BMW Schrick Technical Specs Schrick Technical Information / Specs
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Schrick Camshaft - E30 M3 276 degree
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Schrick - Corporate Logo
T#:203
Part#: TMS203
Special Order: No Guaranteed ETA
$ 1,503.99 USD
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$ 1,503.99 USD
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276-deg Performance Camshaft. This is the next step above the Evo 2/3 cams that we also sell and will produce greater top-end power with only slight loss in torque. This cam can be used on the intake side with a stock exhaust cam OR it can be used on the exhaust side with the 284-deg Schrick cam as the intake.

BMW Schrick Technical Specs Schrick Technical Information / Specs br>
This item fits the following BMWs:
1988-1991 E30 BMW M3 - S14 engine
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Schrick Camshaft Set - E30 M3 284/276 degree
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Schrick - Corporate Logo
T#:3566
Part#: E30M3SCHRICK
Ships on Oct 22, 2026
$ 3,007.27 USD
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$ 3,007.27 USD
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Boost your mid to top end power on your S14 engine with these aggressive Schrick cams! These are the next step above the Evo 2/3 cams that we also sell and will produce greater top-end power with only slight loss in torque. The intake cam is 284 degree (stock is 246) with 11.5mm lift (stock is 10.7) and the exhaust cam is a 276 degree with 11.3mm lift. Motorsport valve springs and adjustable cam sprockets are recommended but not required

BMW Schrick Technical Specs Schrick Technical Information / Specs

This item fits the following BMWs:
1988-1991 E30 BMW M3 - S14 engine
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Schrick Camshaft - E30 325i, E34 525 (M20) 304 degree
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Schrick - Corporate Logo
T#:338233
Part#: 05601040-00
Ships on Oct 22, 2026
Starting at $ 1,489.99 USD
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Starting at $ 1,489.99 USD
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Schrick's most aggressive cam for the M20 engine. The 304-degree will make big power at the top but there will be a loss of low-end torque so this cam is only recommended for cars that see most of their time above 4000 rpm. Schrick High Performance valve springs are strongly recommended. This cam has a 12.2mm lift and will not clear stock M20 pistons.

BMW Schrick Technical Specs Schrick Technical Information / Specs
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Schrick Camshaft - E30 E34 M20 284
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Schrick - Corporate Logo
T#:206
Part#: 05601840-00
Special Order: No Guaranteed ETA
$ 479.00 USD
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$ 479.00 USD
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Schrick has been dedicated to engine performance through the development of only the highest quality camshafts for more than 40 years. They've created a bond with BMW enthusiast nearly the entire time, offering options for both the street and track using top materials for strength and accuracy. Schrick has grown into a technology center offering one of the most advanced locations for engine testing and manufacturing. This is Step 2 in Schrick's line of performance cams. The 284 degree cam will be great for owners who want to retain their driveability on the street and only need a modest boost in top-end RPM. Schrick recommends replacing the valve springs with high-performance springs for this application.
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