BMW Internal Engine Parts for MINI

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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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77.00mm Piston Ring Kit CPN-3031
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CP Carrillo - Corporate Logo
T#:27938420
Part#: CPN-3031
In Stock at Vendor
$ 38.99 USD
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Engine Rod Bearing Kit - (+0.25) Size
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King - Corporate Logo
T#:31589432
Part#: CR4538CA0.25
In Stock at Vendor
$ 54.99 USD
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Sneed4Speed Street Series Piston Rings Set - Stock Size 77mm - Priced...
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Sneed4Speed - Corporate Logo
T#:18932312
Part#: NSRS-STD
Ships in 2 Business Days
$ 24.99 USD
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SNEED4SPEED MINI Cooper Performance Engine - Street 14SCE | MINI R55 ...
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Engine if not in stock here or at S4S will take 30-45 days to build, ETA on site is estimate
Sneed4Speed - Corporate Logo
T#:39768332
Part#: 2028311KT
Ships on Sep 29, 2026
$ 6,295.00 USD
$ 6,295.00 USD
Rebuilt performance engines that are great for the street to track level, Does not come with a painted block. You will have to paint it on your own.

Sneed4Speed Street Series Piston Set Of 4 - N18 Plus Size 77.25mm (+0...
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Sneed4Speed - Corporate Logo
T#:7260310
Part#: 182834425
Ships in 2 Business Days
$ 425.00 USD
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"0.25" will be printed on the pistons. Please inspect before install.
R56 N12 Sneed4Speed Street Series Piston Set - Standard - N14 / N16 /...
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Sneed4Speed - Corporate Logo
T#:23383346
Part#: N12PSSTD
Ships in 1 Business Day
$ 425.00 USD
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"STD" will be printed on the pistons. Please inspect before install.

Enhance your MINI's performance with these pistons equipped with a complete ring set, comprising top compression, second compression, and oil control rings. The unique oil control ring consists of three individual rings configured into a single ring groove on the piston. This setup includes two thin rings and a wavy metal ring nestled between them. The pistons come ready with the rings pre-installed, ensuring convenience in installation.

Benefits:

  • Complete Ring Set: Includes top compression, second compression, and oil control rings
  • Pre-Installed Rings: Rings are already assembled on the pistons for ease of use
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MINI R55 to R61 Main Bearing Set - +.25 Size
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ACL - Corporate Logo
T#:31158809
Part#: 5M7788H-.25
Ships on Aug 3, 2026
$ 204.99

This product was last offered at the strikethrough price on
04-09-2026

$ 201.99 USD
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$ 201.99 USD
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MINI R55 to R61 Main Bearing Set - +.25 Size

The MINI R55 to R61 Main Bearing Set - +.25 Size is engineered for superior performance and reliability. Constructed from high tensile strength steel alloy, these bearings enhance rod bearing strength and retention. The increased crush improves bearing retention by enhancing radial contact pressures and heat dissipation. Bearing eccentricity is optimized to compensate for bore distortion and supports the formation of a hydrodynamic oil film, ensuring smooth engine operation. This set is +.25 size over standard, offering a precise fit for your MINI.

  • Increased Strength: Higher tensile strength steel alloy for improved bearing durability.
  • Enhanced Retention: Greater crush for better bearing retention and heat dissipation.
  • Optimized Eccentricity: Compensates for bore distortion and supports hydrodynamic oil film formation.
  • Precise Fit: +.25 size over standard for a perfect fit in your MINI.
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SNEED4SPEED MINI Cooper N18 Performance Head - Street Up to 3/2012 ...
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Sneed4Speed - Corporate Logo
T#:32814625
Part#: N18CYLHEAD
Ships in 1 Business Day
$ 3,299.99 USD
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MINI R55 to R61 Rod Bearing Set - .25+ Size
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ACL - Corporate Logo
T#:31423714
Part#: 4B7787H-.25
Ships on Aug 3, 2026
$ 130.99

This product was last offered at the strikethrough price on
04-09-2026

$ 128.99 USD
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$ 128.99 USD
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MINI R56 N14 Street Series Piston Set Of 4 - Stock Size 77mm ...
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Sneed4Speed - Corporate Logo
T#:7260304
Part#: 1828343
Ships in 6 Business Days
$ 425.00 USD
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"STD" will be printed on the pistons. Please inspect before install.
MINI R56 N12 Sneed4Speed Street Series Piston Set Plus sized (+0.25) ...
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Sneed4Speed - Corporate Logo
T#:26238482
Part#: 182834324
Ships in 1 Business Day
$ 425.00 USD
Free Shipping on orders $49 and up
"0.25" will be printed on the pistons. Please inspect before install.

Upgrade your non-turbo MINI engine with the Sneed4Speed street series N12 cast piston set. This set includes pistons, rings, and wrist pins for comprehensive engine enhancement. Ensure proper fitment by checking engine models and compatibility before purchase. Each piston in the set features three rings: a top compression ring, a second compression ring, and an oil control ring, providing efficient performance and control. The oil control ring consists of two thin rings and a wavy metal ring, all pre-installed on the piston for convenience.

  • Complete piston set with rings and wrist pins included
  • Rings pre-installed on each piston for easy assembly
  • Designed for non-turbo MINI engines
  • Enhances engine performance and durability
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MINI R50 to R53 Engine Main Bearing Kit Silicone Bi Metal - (+0.25) S...
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King - Corporate Logo
T#:31423708
Part#: MB5667SI0.25
In Stock at Vendor
$ 134.99 USD
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F56 B48 Sneed Street Series Piston Set
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Sneed4Speed - Corporate Logo
T#:30397437
Part#: BSDPS
Ships in 2 Business Days
$ 445.00 USD
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Main Bearing Set - Standard Size
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Sneed4Speed - Corporate Logo
T#:26538326
Part#: BSMBS
Ships in 1 Business Day
$ 94.99 USD
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Head Stud Kit - R56
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Sneed4Speed - Corporate Logo
T#:42099869
Part#: 56HSK
Ships in 2 Business Days
$ 199.99 USD
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Engine Rod Bearing Kit - (+0.50) Size
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King - Corporate Logo
T#:31589319
Part#: CR4538CA0.50
In Stock at Vendor
$ 57.99 USD
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MINI R56 N14 N18 Sneed4Speed Engine Main Bearing Set - Standard Size ...
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Sneed4Speed - Corporate Logo
T#:23449741
Part#: NSMBS
Ships in 4 Business Days
$ 129.99 USD
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MINI R56 owners can enhance their engine performance with the Sneed4Speed Engine Main Bearing Set. This high-quality set is meticulously crafted to improve durability and reliability, offering superior support to the engine's rotating assembly. Designed for precise fitment and long-lasting performance, these main bearings ensure consistent lubrication and reduce friction within the engine. Perfectly engineered to meet high-performance demands, this bearing set is a crucial upgrade for keeping the MINI R56 engine running smoothly and efficiently.

  • Enhances Engine Durability and Reliability: Improves the overall strength and dependability of the engine.
  • Optimal Support to the Rotating Assembly: Provides necessary support to maintain engine balance and performance.
  • Precise Fitment and Longevity: Ensures a perfect fit and long-lasting use.
  • Minimizes Friction and Enables Consistent Lubrication: Reduces wear and tear by ensuring smooth lubrication.
  • Engineered for High-Performance Demands: Designed to handle the stress of high-performance driving.
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Rod Bearing Set - Standard Size
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Sneed4Speed - Corporate Logo
T#:26538327
Part#: BSRBS
Ships in 2 Business Days
$ 39.99 USD
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Engine Rod Bearing Kit - Standard Size
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King - Corporate Logo
T#:31522924
Part#: CR4537CA
In Stock at Vendor
$ 55.99 USD
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SNEED4SPEED MINI Cooper W10/W11 Performance Head - Street - W11 1.6L ...
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Sneed4Speed - Corporate Logo
T#:18866027
Part#: 2028201
Ships in 1 Business Day
$ 2,699.99 USD
$ 2,699.99 USD

Optimize your MINI Cooper S's performance with the meticulously remanufactured Sneed cylinder head, crafted for superior power, reliability, and endurance. Engineered using top-notch materials and advanced techniques, this cylinder head exceeds original manufacturer specifications.

Benefits:

  • Superior performance designed for MINI Cooper S models
  • Unmatched quality, durability, and precise fitment
  • Direct compatibility with MINI Cooper S models 2002-2006 R52 and R53
  • Hassle-free installation without modifications

Frequently Asked Questions:

What is a Sneed remanufactured cylinder head?

A Sneed remanufactured cylinder head is...

Does the Sneed remanufactured cylinder head come with a warranty?

Yes, we offer a warranty on our Sneed remanufactured cylinder heads...

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MINI R53 R52 W11 Sneed4Speed Forged Street Series Piston Set - Plus S...
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Sneed4Speed - Corporate Logo
T#:19230372
Part#: R53FPS-.5
Ships in 1 Business Day
$ 699.00 USD
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"0.50" will be printed on the pistons. Please inspect before install.

MINI R53 R52 W11 Sneed4Speed Forged Street Series Piston Set

A high-performance piston upgrade designed to optimize the engine performance of your Mini R53 or R52 with the W11 engine. Engineered by Sneed4Speed, these forged pistons offer superior strength and durability compared to stock pistons, allowing for higher compression ratios and increased power output. With precision machining and tight tolerances, these pistons ensure optimal fitment and reliable performance under high-stress conditions. Upgrade your Mini's engine with the MINI R53 R52 W11 Sneed4Speed Forged Street Series Piston Set for improved performance and reliability.

  • High-performance upgrade for Mini R53 or R52 with W11 engine
  • Forged construction for superior strength and durability
  • Allows for higher compression ratios and increased power output
  • Precision machining for optimal fitment
  • Reliable performance under high-stress conditions
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ARP Head Stud Kit B48
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ARP - Corporate Logo
T#:48367046
Part#: 201-4704
In Stock at Vendor
$ 263.99 USD
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MINI W10 W11 CP Forged Piston & Ring Set (Set Of 4) - 78mm (Plus Size...
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CP Carrillo - Corporate Logo
T#:28968875
Part#: SC7512
In Stock at Vendor
$ 885.99 USD
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Upgrade your Mini's engine performance with the MINI W10 W11 CP Forged Piston & Ring Set (Set Of 4) - 78mm (Plus Size +1mm). This high-quality piston and ring set is designed to enhance power and durability, ensuring optimal performance on the road or track. With a forged construction and plus-size design, it provides improved strength and reliability for your Mini's engine.

  • Enhances engine performance for Mini vehicles
  • Durable forged construction for long-lasting use
  • Plus-size design (+1mm) for improved strength
  • Includes a set of 4 pistons and rings for convenience

Transform your Mini's engine with the MINI W10 W11 CP Forged Piston & Ring Set, achieving greater power and reliability.

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WPC Treated Rod Bearings Set - 4 Cylinder
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ECS - Corporate Logo
T#:17073561
Part#: 11247620969WP3KT
Ships on Aug 5, 2026
Sale - Save 10% $ 559.99

This product was last offered at the strikethrough price on
06-14-2026

$ 503.93 USD
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Sale - Save 10%
$ 559.99

This product was last offered at the strikethrough price on
06-14-2026

$ 503.93 USD
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Titanium Retainer - Priced Each
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Supertech - Corporate Logo
T#:26171670
Part#: RET-MC56/T1
In Stock
$ 19.99

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

$ 17.99 USD
Limited Qty Sale
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$ 19.99

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

$ 17.99 USD
Limited Qty Sale
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Titanium Performance Retainers for MINI

Upgrade your MINI's performance with these titanium performance retainers, designed to sit at the top of the spring. Crafted from high-quality titanium metal, these retainers offer enhanced durability and strength compared to traditional options. Compatible with OEM springs or SPR-MC56-BE, these retainers are versatile and suitable for various engine setups. For a complete engine replacement, you'll need 16 of these performance retainers.

Benefits:

  • Enhances MINI's performance
  • Crafted from high-quality titanium metal
  • Offers enhanced durability and strength
  • Versatile compatibility with OEM springs or SPR-MC56-BE
  • Ideal for engine upgrades and replacements
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WPC Treated Rod Bearings Set - 3 Cylinder
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ECS - Corporate Logo
T#:17073562
Part#: 11247620969WP4KT
Ships on Aug 5, 2026
Sale - Save 10% $ 419.99

This product was last offered at the strikethrough price on
06-14-2026

$ 377.95 USD
Free Shipping
Sale - Save 10%
$ 419.99

This product was last offered at the strikethrough price on
06-14-2026

$ 377.95 USD
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Supertech Exhaust Valve - Priced Each
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Supertech - Corporate Logo
T#:26404919
Part#: MCEVI-1202-HS
Ships in 5 Business Days
$ 69.99 USD
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Enhance your Mini's engine performance with these high-quality intake valves. Made of durable Black Nitride material, these valves feature a single groove design for improved airflow. With a head diameter of 27.00mm (+0.08) and a length of 110.15mm, they are designed to optimize engine efficiency and power output.

  • Durable Black Nitride material ensures longevity
  • Single groove design improves airflow
  • Precision-engineered for optimal performance
  • Compatible with Mini engines for seamless installation

Upgrade your Mini's engine with these intake valves and experience improved performance on the road.

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Forged Piston (Set Of 4) - 77mm Low Compression P4-MIN56-77-CR9.5-4 ...
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Supertech - Corporate Logo
T#:26238377
Part#: P4-MIN56-77CR9.5
Ships in 8 Business Days
$ 840.99 USD
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Supertech Pistons offer top-tier performance with their advanced construction and high-quality materials. Crafted from extruded high-silicone, enhanced 4032 alloy, these pistons boast exceptional durability, low thermal expansion, and superior wear resistance. Engineered for maximum performance, Supertech Pistons can withstand high boost levels, making them ideal for high-performance applications.

  • Manufactured from extruded high-silicone, enhanced 4032 alloy
  • Withstands up to 42psi of boost with alcohol
  • Fine structural grain achieved through a two or three-step forging process
  • Heat treatments provide high tensile strength and evenly distributed hardness
  • Features contact reduction grooves and honed pin bores for precise fit
  • Wrist pins made of cold extruded chrome moly steel for added strength
  • Coated with 'phosphate dry lubricant' for ring protection and enhanced lubrication
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Valve Stem Seal Intake Side - Set Of 8 - BMW MINI B38 B46/48 ...
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Supertech - Corporate Logo
T#:14783496
Part#: VSI-BM50-IKT
Ships in 6 Business Days
$ 91.99

This product was last offered at the strikethrough price on
01-14-2026

$ 14.99 USD
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$ 14.99 USD
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Supertech Valve Seals are the final piece of the puzzle for your performance valvetrain. This is for a complete valve stem seal repair for the Intake side, you will need 8 of a different part for the exhaust side.
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King Engine Bearings Mini Cooper B38A15M0 (Size +0.50mm) Connecting R...
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King - Corporate Logo
T#:30596490
Part#: CR357SV0.5
Ships in 6 Business Days
$ 136.00 USD
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Engine Rod Bearing Kit - +0.75 Size
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King - Corporate Logo
T#:39396820
Part#: CR4537CA0.75
Ships in 6 Business Days
$ 82.99 USD
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Engine Rod Bearing Kit - +0.25 Size
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King - Corporate Logo
T#:39396818
Part#: CR4537CA0.25
Ships in 6 Business Days
$ 82.99 USD
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Engine Rod Bearing Kit - +0.50 Size
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King - Corporate Logo
T#:39396819
Part#: CR4537CA0.50
Ships in 6 Business Days
$ 60.99 USD
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Forged B46/B48 Piston (Set Of 4) - 82.00mm (Standard) P4-MINB48-82-CR...
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Supertech - Corporate Logo
T#:2088843
Part#: P4MINB4882CR10.2
Ships in 7 Business Days
$ 811.99 USD
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$ 811.99 USD
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Supertech Pistons are crafted from an advanced 4032 alloy, enriched with Cu, Ni & Mg, delivering low thermal expansion, exceptional wear resistance, and superior thermal conductivity. Engineered to withstand high pressure, these pistons have endured up to 42psi of boost with alcohol without issues.
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Forged Piston (Set Of 4) 82mm - B46 B48 2.0L (Standard) P4-MINB48-82-...
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Supertech - Corporate Logo
T#:26404828
Part#: P4-MINB48-82CR11
Ships in 8 Business Days
$ 798.99 USD
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Supertech Pistons offer exceptional durability and performance for your Mini, crafted from extruded high silicone, enhanced 4032 alloy. With low thermal expansion, excellent wear resistance, and higher thermal conductivity, these pistons are designed to withstand up to 42psi of boost with alcohol. Benefits include:

  • Manufactured from high-quality 4032 alloy with additional Cu, Ni & Mg for enhanced performance.
  • Two or three-step forging process for fine structural grain.
  • Heat treatments for high tensile strength and evenly distributed hardness.
  • Contact reduction grooves and precise pin bores for optimal fit.
  • Wrist pins made of cold extruded chrome moly steel for durability.
  • Phosphate dry lubricant coating for ring protection and enhanced lubrication.

Compression ratios are computed with .030" head gasket and .010" deck unless indicated in each case. Rings are sold separately.

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MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS...
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Supertech - Corporate Logo
T#:31291033
Part#: SPR-TS1015-MC
Ships in 8 Business Days
$ 701.99 USD
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MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS1015-mc is designed for high-performance engines that require enhanced valve control. This kit mounts directly to the stock OEM retainers and is ideal for performance builds demanding superior spring characteristics.

Key benefits of the MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS1015-mc include:

  • Dual Valve Spring Design: Provides increased stability and durability under high performance conditions.
  • High Pressure Ratings: Offers a seat pressure of 76 lbs @ 34.80 mm and an open pressure of 210 lbs @ 11 mm, ensuring reliable valve control.
  • Extended Lift Capability: Supports a maximum lift of 14.00 mm, allowing for more aggressive camshaft profiles.
  • Precision Specifications: Includes dimensions of OUTSPR.OD 27.50 mm, OUTSPR.ID 20.00 mm, INNSPR.OD 20.00 mm, and INNSPR.ID 15.20 mm for accurate fitting.
  • Durable Construction: Coil bind at 20.70 mm and rate of 12.10 mm ensure long-lasting performance and resistance to wear.
  • Complete Set: Includes 16 springs for a full engine overhaul.
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Supertech Intake Valve - Priced Each 29.80mm(+1.0mm)
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Supertech - Corporate Logo
T#:31522974
Part#: MCIVN-1201S
Ships in 8 Business Days
$ 34.99 USD
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Supertech Intake Valve - Priced Each - Standard Size
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Supertech - Corporate Logo
T#:31092526
Part#: MCIVN-1004T
Ships in 8 Business Days
$ 26.99 USD
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Forged Piston JCW (Set Of 4) - 77.5mm (+0.50mm) P4-MIN56-N18-77.5-CR1...
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Supertech - Corporate Logo
T#:26404882
Part#: P4MIN56N18J77.5C
Ships in 8 Business Days
$ 811.99 USD
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Upgrade your Mini's engine performance with Supertech Pistons, crafted from extruded high silicone, enhanced 4032 alloy with additional Cu, Ni & Mg. These pistons boast low thermal expansion, excellent wear resistance, and higher thermal conductivity, ensuring durability even under extreme conditions. With a two or three-step forging process and state-of-the-art CNC machining, these pistons offer fine structural grain and precise dimensions. Heat treatments provide high tensile strength and evenly distributed hardness, while contact reduction grooves and honed pin bores ensure a precise fit. Wrist pins made of cold extruded chrome moly steel add strength, and a 'phosphate dry lubricant' coating protects rings and enhances lubrication.

  • High-quality construction for durability and performance
  • Low thermal expansion and excellent wear resistance
  • Fine structural grain for precise dimensions
  • High tensile strength and evenly distributed hardness
  • Contact reduction grooves and honed pin bores for precise fit
  • Wrist pins made of cold extruded chrome moly steel for added strength
  • 'Phosphate dry lubricant' coating for ring protection and enhanced lubrication
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Forged Piston (Set Of 4) - 77mm - N18 1.6L Engine - P4-MIN56-N18-77-C...
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Supertech - Corporate Logo
T#:23383308
Part#: P4MIN56N1877CR10
Ships in 8 Business Days
$ 811.99 USD
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Supertech Pistons are meticulously crafted from an enhanced 4032 alloy, delivering exceptional performance and reliability for your BMW. Designed to withstand up to 42psi of boost with alcohol, these pistons boast superior wear resistance and low thermal expansion for enduring performance.

Benefits:

  • High-quality enhanced 4032 alloy for low thermal expansion and wear resistance
  • Endures up to 42psi of boost with alcohol, ensuring reliable performance
  • Fine structural grain due to a two or three-step forging process
  • High tensile strength with heat treatments and precision machining
  • Contact reduction grooves, precise pin bores, and chrome moly steel wrist pins for durability
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Supertech Intake Valve - Set Of 8 - Head 32.0mm (+1.8)
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Supertech - Corporate Logo
T#:54388512
Part#: MCIVN-1008T-8
Ships in 8 Business Days
New Item
$ 225.99 USD
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Supertech Performance brings decades of racing experience to their valvetrain components. By utilizing state-of-the-art manufacturing processes and rigorous testing, these valves provide the perfect balance of lightweight design, high-flow geometry, and bulletproof durability needed for forced induction, nitrous, or high-revving naturally aspirated builds.
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MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM100...
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Supertech - Corporate Logo
T#:29002074
Part#: SPRK-HM1007BE/MC
Ships in 8 Business Days
$ 768.99 USD
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Upgrade Your Mini's Engine Performance with MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM1007BE/MC2 SPR-HM1007BE/MC2

Enhance your Mini's engine performance with the MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM1007BE/MC2 SPR-HM1007BE/MC2. This comprehensive kit is designed to optimize valve operation and improve engine efficiency. With high-quality materials and precision engineering, it ensures durability and reliability for your Mini's engine.

Benefits:

  • Optimizes valve operation for improved engine performance
  • High-quality materials ensure durability and reliability
  • Precision engineering for enhanced engine efficiency
  • Compatible with Mini W10 and W11 engines
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Supertech Intake Valve - Priced Each 30.10 Standard Size
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Supertech - Corporate Logo
T#:31589378
Part#: MCIVN-1400S
Ships in 8 Business Days
$ 26.99 USD
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Titanium Retainers - Set Of 8 - BMW B48 - Intake Side
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Supertech - Corporate Logo
T#:54388410
Part#: RET-BMB48-TI-8
Ships in 8 Business Days
New Item
$ 145.99 USD
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By minimizing moving weight, these retainers help prevent valve float at extended RPM ranges, ensuring your engine maintains precise timing and peak power delivery under the most demanding track conditions.
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MINI F54 to F60 Performance Valve Springs Kit - Set Of 16
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Supertech - Corporate Logo
T#:31158807
Part#: SPRK-MCB48
Ships in 8 Business Days
$ 721.99 USD
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MINI F54 to F60 Performance Valve Springs Kit - Set Of 16

The MINI F54 to F60 Performance Valve Springs Kit - Set Of 16 is designed to enhance performance for engines that demand higher specifications. This kit mounts directly to the stock OEM retainers, making it a seamless upgrade for those seeking improved engine performance.

  • Set of 16 springs: Complete kit for comprehensive engine upgrade.
  • Improved performance: Designed for high-performance engines.
  • Direct fit: Mounts to OEM retainers, ensuring easy installation.
  • Specifications:
    • Outer Spring Diameter: 24.40mm
    • Inner Spring Diameter: 21.00mm
    • Outer Spring ID: 17.60mm
    • Inner Spring ID: 14.20mm
    • Pressure Seat: 75 @ 37mm
    • Pressure Open: 155 @ 10mm
    • Maximum Lift: 12.2mm
    • Coil Bind: 23.20mm
    • Rate: 8.0mm
    • OEM Retainer and Seat Compatible
    • Retainer Part Numbers: SPR-FE20BE(16) + RET-BMB48/TE(8) + RET-BMB48/TI(8)
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Forged Piston (Set Of 4) - 77.5mm (+0.50mm) Low Compression N14 N18 -...
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Supertech - Corporate Logo
T#:23383339
Part#: P4-MIN56-77.5CR9
Ships in 8 Business Days
$ 645.99 USD
Free Shipping on orders $49 and up

Upgrade your Mini's performance with Supertech Pistons, crafted from a high-silicone, enhanced 4032 alloy for superior quality. These pistons boast low thermal expansion, exceptional wear resistance, and increased thermal conductivity. Utilizing a two or three-step forging process and CNC machining, they ensure a fine structural grain for robustness. The heat treatment guarantees high tensile strength and uniform hardness, while contact reduction grooves and precisely honed pin bores ensure a precise fit. Crafted with cold-extruded chrome moly steel wrist pins and a phosphate dry lubricant coating, these pistons offer enhanced protection and lubrication for optimal performance.

Benefits:

  • High-quality pistons for enhanced engine performance
  • Low thermal expansion and excellent wear resistance
  • Superior tensile strength and hardness
  • Precisely honed pin bores for accurate fit
  • Enhanced protection with phosphate dry lubricant coating
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Exhaust Valve - Standard Size (set Of 8)
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Supertech - Corporate Logo
T#:31589448
Part#: MCEVN-1004T-8
Ships in 9 Business Days
$ 207.99 USD
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Carrillo B48 Forged Connecting Rod Set - Includes WMC Rod Bolts - BMW...
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CP Carrillo - Corporate Logo
T#:7624642
Part#: CAR-CRS-B48-WMC
Ships on Jul 28, 2026
$ 1,399.99 USD
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$ 1,399.99 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 a 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 performer in both street and racing B48 engines. Carillo's fasteners and "Carrilloy" rods have 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
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Engine Rod Race Bearing Kit - Standard Size
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
King - Corporate Logo
T#:31589431
Part#: CR4600XP
Ships on Jul 28, 2026
$ 210.00 USD
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5mm Single groove valve lock conversion (SET OF 16)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Supertech - Corporate Logo
T#:51356057
Part#: KPR-5.0-7S-16
Special Order: No Guaranteed ETA
New Item
$ 60.99 USD
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