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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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Exhaust Valve - Priced Each
Exhaust Valve - Priced Each
Corteco - Corporate Logo
T#:54388348
Part#: 11347513024
Ships in 2 Business Days
New Item
$ 23.99

This product was last offered at the strikethrough price on
08-07-2026

$ 19.99 USD
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$ 19.99 USD
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On the street or at the track, your engine’s top end takes a beating. If you are rebuilding a cylinder head due to high mileage, overheating, or a mechanical overrev, you need valves that can handle the heat. This Corteco Exhaust Valve is the exact OEM replacement you need to guarantee factory-level sealing and long-term durability under demanding conditions.
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Intake Valve - Priced Each
Intake Valve - Priced Each
Corteco - Corporate Logo
T#:54388474
Part#: 11347513023
In Stock
New Item
$ 20.53

This product was last offered at the strikethrough price on
07-23-2026

$ 15.99 USD
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$ 15.99 USD
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A weak or worn intake valve causes lost compression, erratic idle, and drops in top-end power. When it's time to refresh your cylinder head for reliability on the street or the circuit, this Corteco intake valve is up to the task.
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SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 67lbs - BMW M50 M52 M54 S52
SuperTech Dual Valve Spring Upgrade Kit w/ Steel Retainers - 67lbs - ...
Supertech - Corporate Logo
T#:51426477
Part#: SPRKH100DRBMST
In Stock at Vendor
New Item
$ 833.99 USD
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$ 833.99 USD
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Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy, these valve springs offer exceptional performance and durability even at high RPMs. CAD engineering ensures that the wire stress levels remain within defined limits for long-lasting durability, even under extreme racing conditions. Advanced computer software allows Supertech to meticulously control harmonics, ensuring optimal performance. Manufactured with high-quality military-certified Steel, the retainers are CNC machined to provide a precise fit, guaranteeing longevity and reliability.
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Titanium Retainers - Set Of 8 - BMW B48 - Intake Side
Titanium Retainers - Set Of 8 - BMW B48 - Intake Side
Supertech - Corporate Logo
T#:54388410
Part#: RET-BMB48-TI-8
Ships in 9 Business Days
New Item
$ 145.99 USD
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$ 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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Supertech Intake Valve - Set Of 8 - Head 32.0mm (+1.8)
Supertech Intake Valve - Set Of 8 - Head 32.0mm (+1.8)
Supertech - Corporate Logo
T#:54388512
Part#: MCIVN-1008T-8
Ships in 9 Business Days
New Item
$ 225.99 USD
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$ 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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Supertech Forged I-Beam Connecting Rod Kit - BMW B58 3.0L
Supertech Forged I-Beam Connecting Rod Kit - BMW B58 3.0L
Supertech - Corporate Logo
T#:57086686
Part#: CRBMB58-I148.3-6
Ships in 9 Business Days
New Item
$ 1,864.99 USD
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$ 1,864.99 USD
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Supertech connecting rods for BMW B58B30 applications are designed for racing reliability and high-RPM use, rated for up to 1600 hp. Forged and machined from premium high-strength alloy with ARP fasteners included.
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5mm Single groove valve lock conversion (SET OF 16)
5mm Single groove valve lock conversion (SET OF 16)
Supertech - Corporate Logo
T#:51356057
Part#: KPR-5.0-7S-16
Ships on Sep 4, 2026
New Item
$ 60.99 USD
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$ 60.99 USD
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Rocker Arm - Set Of 8
Rocker Arm - Set Of 8
Bremmen Parts - Corporate Logo
T#:56507832
Part#: 11337559797
Ships on Dec 2, 2026
New Item
$ 99.99 USD
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$ 99.99 USD
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Intake Hydraulic Tappet - Priced Each
Intake Hydraulic Tappet - Priced Each
Bremmen Parts - Corporate Logo
T#:56797117
Part#: 11337548690
Ships on Dec 14, 2026
New Item
$ 10.99 USD
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$ 10.99 USD
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