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BMW Internal Engine Parts for BMW F83 M4 S55 3.0L

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

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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

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T#:39329323

Part#: SUP-HPVK-S55-32/

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$ 1,143.99 USD

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$ 1,143.99 USD

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Supertech Titanium Valve Retainers - Intake - Sold Each

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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

Supertech Titanium Valve Retainers - Exhaust - Sold Each

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T#:21604320

Part#: RET-BMN54-TE

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$ 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

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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

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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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Performance Conical Valve Spring - Set Of 24

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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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Performance Conical Valve Spring - Sold Each

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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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37cc Platinum Series Dish Extreme Duty Piston Set - N55/S55 ...

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T#:17073608

Part#: 647000CE-6

Ships on Jul 28, 2026

8% off MSRP $ 1,423.99

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

$ 1,309.99 USD

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8% off MSRP

$ 1,423.99

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

$ 1,309.99 USD

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SuperTech High Performance Valve Spring Kit - 88lbs - BMW N55 S55 ...

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T#:14783500

Part#: SUP-HPVSK-S55-88

Ships on Jul 28, 2026

$ 1,099.99 USD

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$ 1,099.99 USD

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WPC Treated Main Bearing Set

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T#:13299340

Part#: 11217849234KT2

Ships on Aug 13, 2026

Sale - Save 5% $ 888.86

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

$ 844.42 USD

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Sale - Save 5%

$ 888.86

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

$ 844.42 USD

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5mm Single Groove Valve Keeper - Priced Each

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T#:21604312

Part#: KPR-5.0-7S

Back Ordered

$ 3.99 USD

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$ 3.99 USD

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

ARP Head Stud Kit BMW S55 Custom Age 625+

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N55 Engines it is a MUST to drill and tap!

T#:41458801

Part#: ARP-HSK-S55-CA

Back Ordered

$ 899.99 USD

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$ 899.99 USD

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Upgrade your S55 with the ARP Head Stud Kit BMW S55 Custom Age 625+ and drive with confidence under pressure.

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