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Cylinder Head

BMW makes their cylinder heads from aluminum. While this is beneficial for many reason, they do not react well to overheating. Especially prevalent on older BMW engines, and over-temp situation has been known to cause the head to warp. Turner Motorsport carries Genuine BMW replacement heads and parts to make your next rebuild a success.

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Supertech Valve Spring Kit - BMW S65 Engine

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T#:4908057

Part#: ST-VSK-S65

Ships in 7 Business Days

$ 469.99 USD

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$ 469.99 USD

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Revitalize your BMW S65 engine's performance with Supertech Beehive Valve Springs – a reliable solution to the common issue of valve spring breakage. Designed as an economical yet high-quality alternative, these valve springs are the perfect complement to Stage 1 and Stage 2 cylinder heads.

Enhanced Durability: Crafted from premium Superclean Chrome Silicon Vanadium Steel alloy.
High-Performance Design: Withstands high rpms for improved engine performance.
Better Memory: Ensures consistent performance under extreme conditions.
Precision Engineering: Computer-designed to manage wire stress levels and harmonics.
Complementary Upgrade: Ideal for use with Stage 1 and Stage 2 cylinder heads.

Upgrade your BMW S65 engine with Supertech Beehive Valve Springs for reliable and durable performance.

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BMW N54 ARP Head Stud Kit

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T#:17538610

Part#: ARP-HSK-N54-14

In Stock

$ 599.99 USD

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$ 599.99 USD

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The VAC Motorsports ARP Head Stud Kit was put together by VAC and ARP’s finest engineers. This is a completely custom kit designed specifically for the almighty N54. *High Boost (25+ psi application) option features: (14) 11mm ARP Head Studs (14) ARP Washers for 11mm Studs (14) ARP Nuts for 11mm Studs Install Tips: MUST drill and tap the (4) 9mm holes in the engine block to make them 11mm holes. This way all the engine block holes are 11mm, and fit ALL (14) 11mm Studs. Torque Specs: All studs torque down through 3-equal steps to 95 ft lbs ***This is NOT the Chrysler and Volvo stud kits! VAC Motorsports and ARP engineers designed and assembled this kit with high grade material, specifically so standard street-use or high-boost N54 owners have a PROPER kit that does not fail over time, such as the retro-fit Chrysler and Volvo head stud kits. ARP is the world leader in fastener technology. Makers of the finest fasteners in the market, especially for BMW engines, ARP is the brand you can count on when you want the highest reliability possible. If you are looking for high performance from your BMW engine, then ARP Head Stud Kits are a must. All kits come complete with hardened parallel-ground washers and aerospace-quality nuts.

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ARP Performance Head Stud Kit - N54

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T#:1061441

Part#: ARP-HSK-N54

Ships in 9 Business Days

$ 554.99 USD

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$ 554.99 USD

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Despite the fact that BMW engineers some of the worlds most revered engines, during number crunching something always has to be a compromise. One item that is always found to be a weak point- the OEM hardware. It is definitely sub-par for real performance use under high stress such as modded engines and track use. We use these fasteners on all of VAC's in-house head builds. Whenever the head is coming off, your switching to forced induction, or if you are simply prepping to drive your car hard; we highly recommend switching to far superior race-grade hardware. These Head Stud Kits greatly improve reliability; helping to eliminate movement of the of the cylinder head and intern, gasket failure caused by inferior OEM head-bolt stretch. This is the #1 cause of premature head gasket failure, especially on boosted or high output engines. Though more expensive than OEM, converting to one of VAC's head studs kits will not only give added strength and reliability when its needed most, but provides the most accurate torque readings because studs don’t “twist” into the block; all clamping forces are on one axis, and there is less force exerted on the normally stressed threads of the block. This increases block and hardware life and typically makes the head easier to properly install to the block, a blessing if your head may have to be removed more than once. Especially in the time crunch of racing, when engines are dissembled frequently, studs make removing and installing the cylinder head on to the block a much easier task. By allowing the studs to act as a guide on to the head, your head slides on and off and also ensures proper alignment of the head and gasket for the same reason. It is similar to converting your wheel-bolts to wheel-studs.

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ARP Rod Bolt Set - M20 - 53mm

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T#:1061435

Part#: ARP-RBS-M20

Ships on Jul 28, 2026

$ 314.99 USD

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$ 314.99 USD

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ARP, the world’s leader in fastener technology. There is no substitute for the best! Planning to boost your M20? Building a high HP stroker engine? This rod bolt kit is for you! This kit provides higher strength, more clamping power, and the option to re-use the hardware unlike your OEM bolts. We run these in many of our own builds as well and are 110% satisfied with the fit and finish of these ARP bolts. We offer a 53mm UHL version for those running OEM M20 rods or a 44mm UHL version for those who have upgraded to S50/S52 OEM rods.

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Supertech BMW M50/M52/S50/S52 Dual Valve Spring Kit

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T#:9126166

Part#: PRK-H1000D-BM

Ships on Jul 28, 2026

$ 763.99 USD

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$ 763.99 USD

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5mm Single groove valve lock conversion

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T#:30330952

Part#: KPR-5.0/7S

In Stock

$ 3.99 USD

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$ 3.99 USD

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Titanium Retainer - Priced Each

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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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MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM100...

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T#:29002074

Part#: SPRK-HM1007BE/MC

Ships in 8 Business Days

$ 768.99 USD

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$ 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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Titanium Retainers - Set Of 8 - BMW B48 - Intake Side

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T#:54388410

Part#: RET-BMB48-TI-8

Ships in 8 Business Days

$ 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 - Performance Dual Valve Spring Kit With Titanium Retainers...

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T#:44699186

Part#: SPRK-H1005D-M20

Ships in 8 Business Days

$ 855.99 USD

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$ 855.99 USD

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5mm Single groove valve lock conversion (SET OF 16)

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T#:51356057

Part#: KPR-5.0-7S-16

Special Order: No Guaranteed ETA

$ 60.99 USD

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$ 60.99 USD

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