BMW Internal Engine Parts for BMW F82 M4 S55 3.0L

VTT S55 Crank Bolt Capture - F8X S55 F3x N55

T#:557934

Part#: VTT-S55-CBC

In Stock

$ 129.99 USD

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$ 129.99 USD

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The S55 suffers from a weak point in its crankshaft. It has been reported that when increasing the power to the engine, the crank hub can move or spin slightly under an extreme load.

Vargas "Spline Lock" Crank Hub Solution - Includes Crank Bolt Capture...

T#:558795

Part#: VTT-CRANKHUB-1

Ships in 4 Business Days

$ 889.99 USD

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$ 889.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Spline Lock Crank Hub Solution W/ Complete Package - N55 S55 ...

T#:18733532

Part#: VTT-CRANKHUB-6

Ships in 1 Business Day

$ 986.99

This product was last offered at the strikethrough price on
06-28-2026

$ 939.99 USD

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$ 939.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Supertech Single Groove Exhaust Valve - Priced Each

T#:21472889

Part#: BMEVI-1055S-HS

Ships in 5 Business Days

$ 55.99 USD

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$ 55.99 USD

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Single Groove sodium filled exhaust valves for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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5mm Single Groove Valve Keeper - Set Of 24

T#:21604314

Part#: KPR-5.0-7S-24

In Stock

$ 72.99 USD

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$ 72.99 USD

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Two required per valve, for use with certain supertech valves 5.0mm single groove

Spline N55 S55 Lock Crank Hub Solution W/ Hardware Package

T#:18733531

Part#: VTT-CRANKHUB-5

Ships in 10 Business Days

$ 880.99 USD

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$ 880.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution.

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Ferrea High Performance Valve Spring Kit for BMW N55/S55

T#:23416526

Part#: FER-HPVSK-N55

Ships in 3 Business Days

$ 1,049.99 USD

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$ 1,049.99 USD

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Maximize your N55 or S55 engine's performance with Ferrea Valve Springs and Retainers, precision components crafted from chromoly alloy. These springs undergo special thermal treatment, ensuring exceptional durability even in extreme racing conditions. Addressing issues like valve binding, breakage, and float, Ferrea valve springs are meticulously heat-treated and stress-relieved, providing stability for high-lift and high-RPM racing engines while minimizing load loss. Precision CNC machined titanium retainers offer superior strength and stability. Ferrea's Spring Seat Locators, made from 4140 chromoly alloy, guarantee precise tolerances and a flat, parallel spring pad with a hard Nitride surface treatment for exceptional toughness and anti-wear characteristics. Please note that installation requires the expertise of an engine builder.

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Supertech Forged Pistons - Set Of 6

T#:21604329

Part#: P6-BMN55-84-T-6

In Stock

$ 984.99

This product was last offered at the strikethrough price on
05-21-2026

$ 904.99 USD

Limited Qty Sale

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$ 984.99

This product was last offered at the strikethrough price on
05-21-2026

$ 904.99 USD

Limited Qty Sale

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Supertech forged pistons are a great choice for performance engine builds! Bore: 84.00mm Over Size: STD Comp Ratio: 10.2:1 Dome dish: -10.4 Head CCs: 37cc Comp Height: 32.40mm Stroke: 89.60mm Skirt style: Slipper Design Rod Length: 141.35mm Pin Diam: 22mm Material: 4032 Application: All Motor / Turbo Ring part number: R84-GNH8400 (MUST BE PURCHASED SEPARATELY)

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BMW N55 S55 Ferrea High Performance Valve Kit

T#:23416508

Part#: FER-HPVK-S55-T-3

Ships in 3 Business Days

$ 929.99 USD

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$ 929.99 USD

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Increase the power output of your N55/S55 engine with the high-performance Ferrea valve kit. Renowned as the industry's most reliable extreme-duty valves, they're meticulously crafted from aerospace-grade alloys, employing an exclusive two-step slow forging process for optimal grain flow and material structure integrity. A 48-hour heat treatment and stress-relieving process enhance molecular integrity. The valves feature avionics-quality hard chrome and a specially applied hard tip. Standard size: 32mm intake / 28mm exhaust, with a triple groove valve design. Compatible with factory valve locks ("Valve Keepers"), the kit includes 12x Intake Valves and 12x Exhaust Valves for a comprehensive engine upgrade!

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5150 AutoSport High Performance Main Bearing Set, BMW S55

T#:23416567

Part#: 5150-HPMBS-S55

Ships in 3 Business Days

$ 549.99 USD

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$ 549.99 USD

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ARP Head Stud Kit - BMW N55/S55

T#:23416542

Part#: ARP-HSK-S56-CA

In Stock

$ 999.99 USD

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$ 999.99 USD

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Spline Lock Crank Hub Solution

T#:8061334

Part#: VTT-N55-CRANKHUB

Ships in 10 Business Days

$ 818.99 USD

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$ 818.99 USD

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Under certain conditions, the N55 crank hub likes to spin, without warning and even when the engine is in perfect health. The engineers at Vargas saw and dealt with this problem time and again, and they saw fit to do something about it. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution. This hub uses a proprietary "Spline Lock" technology that uses high tolerance machined splines which press into the crank, and positively lock the hub to the crank. The splines are machined in such a way that rotational forces drive the hub, and splines deeper into the crank meaning when the hub encounters a situation that would normally slip a stock hub the splined hub is driven into the crank to keep it in place (much like a splined extractor). Features: Installs the same as a stock hub Does NOT require the crank to be drilled for pins Manufactured from Harndered 17-4SS We suggest the Crank Hub System ONLY be installed by a qualified shop or technician. Timing tools are 100% REQUIRED if installed improperly engine damage may occur. DISCLAIMER: VTT and ECS are not responsible for any engine damage caused by improper installation, or misuse of the crank hub solution. The product comes with a 1-year unlimited mileage warranty from manufacturer defects.

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Supertech Single Groove Intake Valve - Set Of 12

T#:14783498

Part#: BMIVN-1055S-12

Ships in 5 Business Days

$ 310.99 USD

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$ 310.99 USD

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Head Diam: 32mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 104.9mm Stem Diam: 4.97mm

Supertech Titanium Valve Retainers - Intake - Set Of 12

T#:21604322

Part#: RET-BMN54-TI-12

Ships in 6 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Supertech Titanium Valve Retainers - Exhaust - Set Of 12

T#:21604321

Part#: RET-BMN54-TE-12

Ships in 6 Business Days

$ 197.99 USD

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$ 197.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Performance Dual Valve Spring Kit with Steel Retainers - Set Of 24 ...

T#:21604308

Part#: SPRKFE20N54BE

Ships in 4 Business Days

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 75 @ 36.5 Open Pressure: 155 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 8 Kit spring: SPR-FE20BE Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Supertech Single Groove Exhaust Valve - Set Of 12

T#:14816646

Part#: BMEVI-1055S-HS-1

Ships in 4 Business Days

$ 660.99 USD

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$ 660.99 USD

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Single Groove sodium filled exhaust valve set for high performance builds Head Diam: 28mm (std) Material: Inconel-Nimonic / Sodium Filled Groove Type: Single Groove Length: 112.9mm Stem Diam: 5.96mm

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Conical Spring Kit - Set Of 24

T#:21604309

Part#: SPRKFE20N54BE2

Ships on Aug 12, 2026

$ 965.99 USD

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$ 965.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Can be used with factory valve stem seals and keepers. InnSpr.OD: 21mm InnSpr.ID: 14.2mm Seat Pressure: 88 @ 36.5 Open Pressure: 160 @ 10 Max Lift: 12mm Coil Bind: 23.2mm Rate: 7.25 Kit spring: SPR-FE20BE-2 Kit spring qty: 24 Retainer: RET-BMN54-TI (5mm) / RET-BMN54-TE (6mm) OutSpr.OD: 24.4mm OutSpr.ID: 17.6mm Retainer qty: 24

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Performance Conical Valve Spring - Sold Each

T#:21472894

Part#: SPR-FE20BE

In Stock

$ 19.99

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

$ 18.99 USD

Limited Qty Sale

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$ 19.99

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

$ 18.99 USD

Limited Qty Sale

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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Forged Connecting Rods - Sold Each

T#:21604327

Part#: CR-BMN55-H144.35

In Stock

$ 198.99

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

$ 184.99 USD

Limited Qty Sale

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$ 198.99

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

$ 184.99 USD

Limited Qty Sale

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Supertech forged rods are a great choice for performance engine builds! These rods come with ARP 2000 hardware and are designed for high powered N55/S55 applications. H-Beam design Forged 4340 alloy Center to center: 144.35mm Be bore: 53.6mm Be width: 20.88 Pe bore: 22mm full float Pe width: 20.88mm tapered ARP 2000 - 3/8" x 1.600" bolts

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5150 AutoSport Pro-Series Turbo Build Kit - Level 2 (1000 HP) - BMW S...

T#:23416563

Part#: PRO1000S55

Ships in 3 Business Days

$ 6,299.99 USD

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$ 6,299.99 USD

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An all-encompassing kit packed with forged internals custom-assembled at 5150 Autosport to prepare your BMW S55engine for high horsepower and high boost levels!

BMW N55/S55 Valves By Super Tech

T#:39329323

Part#: SUP-HPVK-S55-32/

Ships in 3 Business Days

$ 1,143.99 USD

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$ 1,143.99 USD

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Performance Conical Valve Spring - Set Of 24

T#:21604325

Part#: SPR-FE20BE-2-24

Ships in 8 Business Days

$ 494.99 USD

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$ 494.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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Supertech Titanium Valve Retainers - Exhaust - Sold Each

T#:21604320

Part#: RET-BMN54-TE

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 6mm valve stem - Single or Tripe Groove Valves

Supertech Single Groove Intake Valve - Priced Each

T#:14783497

Part#: BMIVN-1055S

Ships in 8 Business Days

$ 25.99 USD

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$ 25.99 USD

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Head Diam: 32mm (std) Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 104.9mm Stem Diam: 4.97mm

Performance Conical Valve Spring - Set Of 24

T#:21604324

Part#: SPR-FE20BE-24

Ships in 8 Business Days

$ 471.99 USD

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$ 471.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 75 @ 37 Open Pressure: 155 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm Rate: 8 OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm

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Supertech Titanium Valve Retainers - Intake - Sold Each

T#:21604319

Part#: RET-BMN54-TI

Ships in 8 Business Days

$ 16.99 USD

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$ 16.99 USD

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7 Degree - 5mm valve stem - Single or Tripe Groove Valves

Performance Conical Valve Spring - Sold Each

T#:21604306

Part#: SPR-FE20BE-2

Ships in 8 Business Days

$ 20.99 USD

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$ 20.99 USD

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Supertech has the high performance valvetrain components you need to take your build to the next level. Seat Pressure: 84 @ 37 Open Pressure: 157 @ 10 Max Lift: 12.2mm Coil Bind: 23.20mm OutSpr.ID: 17.60mm InnSpr.OD: 21.00mm InnSpr.ID: 14.20mm Rate: 7.25

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