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BMW Internal Engine Parts

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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Kelford Camshaft Set - Stage 2 - Gen 2 B58
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Kelford Cams - Corporate Logo
T#:59001757
Part#: KEL-258-B
Ships in 4 Business Days
New Item
$ 1,399.99 USD
$ 1,399.99 USD
285°/280° - 10.30mm/10.60mm Valve Lift
Valve Spring Kit - G80 G82 G87 S58
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Kelford Cams - Corporate Logo
T#:59001763
Part#: KEL-KVS58-BT
Ships in 4 Business Days
New Item
$ 599.99 USD
$ 599.99 USD
High Performance Valve Springs
ARP2000 12PT HSK - S63
Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
ARP - Corporate Logo
T#:54104152
Part#: 201-4702
Ships on Nov 13, 2026
New Item
20% off MSRP $ 639.99

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

$ 511.99 USD
20% off MSRP
$ 639.99

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

$ 511.99 USD
Developed specifically for high-boost, high-horsepower motorsport applications, the ARP Head Stud Kit provides the ultimate clamping force required to maintain a perfect head-to-block seal under the most grueling race conditions.
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