Engine Hardware

Athena Cut Ring Head Gasket - 84.5mm - BMW M50 M52 (84mm Bore) ...

T#:26171655

Part#: ATH-HG-CR-M50-84

In Stock

$ 324.99 USD

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$ 324.99 USD

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Upgrade your BMW engine's performance with the Athena Cut Ring Head Gasket. This gasket replaces BMW part # 11121726619 and 11121726617 and is specifically designed for M50 & M52 iron block inline 6-cylinder engines found in E34/E36 chassis. Standard OEM & MLS gaskets can only handle a certain amount of cylinder pressure before they start to leak, making the Athena Cut Ring Head Gasket the recommended choice for applications making 16+ psi. A compression leak passing the head gasket can cause a range of issues, including engine overheating, loss of power, misfires, and in severe cases, catastrophic engine failure. Athena's gasket is crafted with premium quality reinforced M0115, an asbestos-free material that's original equipment approved and renowned for its superior quality. The AISI 304 stainless steel Cooper Rings bite into the aluminum head, providing maximum sealing capabilities around the cylinder bore and optimizing engine performance, even on engines with nitrous and/or turbo applications that exceed 2-bar boost. Before installation, it is crucial to have the mating surfaces of the cylinder head and block professionally cleaned and resurfaced to ensure they are completely flat. Please be aware that the gasket should have a size that is 0.5mm to 1mm larger than the piston. For example, if the piston measures 84mm, then the gasket should be the next size up, either 84.5mm or 85mm. Installation instructions: Make sure that the engine block and cylinder head surfaces are clean, flat, and free from any debris, oil, or coolant. Install the Cut Ring gasket on the engine block and ensure that it is properly aligned. Avoid twisting or bending the gasket during installation. Place the cylinder head on top of the gasket and install the head bolts or studs in their correct positions. Follow the manufacturer's recommended torque specifications and tighten the bolts or studs in the proper sequence to ensure even clamping force across the gasket. After the initial tightening, re-torque the head bolts or studs after the engine has been started and then allowed to cool to room temperature. This will ensure that the gasket is properly seated and compressed. It is recommended to not use any additional sealant on the MLS gasket, as it is already coated with a Viton rubber sealant. Using additional sealant can hinder the performance of the gasket.

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BMW N54 ARP Head Stud Kit

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 Head Stud Kit - BMW N55/S55

T#:23416542

Part#: ARP-HSK-S56-CA

In Stock

$ 999.99 USD

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$ 999.99 USD

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Billet Oil Thermostat Lid

T#:21045480

Part#: BMS-TLID

Ships in 1 Business Day

Starting at $ 39.00 USD

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Starting at $ 39.00 USD

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These billet CNC replacement aluminum oil thermostat lids and caps are an excellent way to add some color and style to your N54 N55 S55 engine bay. Anodized black, red or blue. Easy to install and made in the USA. Can be used with or without the BMS Sport Oil Cooler Valve.

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Burger Motorsports Turbo Double Baffle Oil Catch Can - F23 235i Conve...

T#:5567062

Part#: OCCN55-235VERT

Ships on Sep 1, 2026

$ 199.00 USD

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$ 199.00 USD

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It's no secret that BMW turbo motors can suffer from oil control problems causing oil to blow through and coat the intercooler and charge piping, gunking up intake valves and the VANOS system, lowering the effective octane, and generally degrading engine performance. The higher your boost levels the more apparent these problems become. The solution to this problem has finally arrived. The BMS oil catch can. While there are other catch cans on the market they all fall short in various areas. Some are mounted on the hot/turbo side of the motor preventing proper vapor condensation. Others utilize hoses that are too small and runs that are too long to allow proper PCV ventilation causing internal motor/ring sealing issues. Some have insufficient or no internal baffle system while others have internal baffles systems that are too restrictive. Some even bypass the PCV system all together venting crankcase gas and odor to the atmosphere. Most are simply repackaged oil catch cans from smaller / lower power motors shoehorned into place in the turbo BMW engine bay. To solve these problems BMS designed their oil catch can kit from the ground up specifically for the turbo BMW application. It features 100% CNC machining with zero welding for a precision fit and long life. The can itself is guaranteed for the life of the vehicle. The hoses exceed the OEM PCV piping in diameter and that flow rate is maintained throughout the entire oil catch can ensuring no excessive crankcase pressure buildup. The BMS OCC retains the factory fully closed loop PCV operation preventing any PCV vapor from leaking to the atmosphere. The mounting locations are selected to minimize the line length, allow more efficient operation, and retain a stealth look. Install takes around 20 minutes, includes all required hardware, and is 100% reversible. Simply unscrew the base of the can or use the drain plug to safely dispose of captured oil with the rest of your used motor oil during oil changes. Made in USA. FEATURES AND BENEFITS Increases Air Intake Efficiency Promotes Engine Longevity Non-Clogging Air/Oil Separation Double Baffle Large 16mm+ inlet and outlet exceeds OEM PCV sizing Free Flow Solid No Restriction Design Retains factory fully closed loop PCV operation Large Intake/Outlet No Tapering Down Stealth Mounting on Cool Side of the Motor Anodized Black Aluminum N54 Model Mounts Out of Sight Under the Cowl Made in USA & Guaranteed for Life Non-Clogging, No Service Needed Air/Oil Separation Double Baffle High flow to eliminate crankcase pressure caused by more restrictive designs Precision CNC Machined from Solid Blocks of High Grade Aluminum DIMENSIONS Can dimensions with lid: 4.4" (111mm) Tall Can Diameter: 2.7" (68.5mm) Lid Length: Back to nozzle end: 4" (101mm) Nozzle Outer Diameter: .75" (19.2mm) Nozzle Inner Diameter: 0.669" (17mm) Can Capacity: 2.5 oz (74 ml)

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BMW S58 3.0L ARP Head Stud Kit - CA625+

T#:22427036

Part#: ARP-HSK-S58-CA

Ships in 3 Business Days

$ 999.99 USD

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$ 999.99 USD

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BMW S58 3.0L ARP Head Stud Kit - CA625+ is the ultimate upgrade for the BMW S58 engine, specifically designed for high-performance models such as the F97 X3M, F98 X4M, G80 M3, G82 M4, G83 M4, and G87 M2. Manufactured by Turner Motorsport, this head stud kit ensures optimal engine reliability and performance.

Enhanced Strength: Featuring Custom Age 625+ material with a tensile strength of 260 ksi, this kit provides superior strength compared to factory bolts.
Prevents Head and Block Separation: Designed to handle increased boost levels and high-stress conditions, preventing potential head and block separation.
Precision Engineering: ARP’s advanced manufacturing process ensures that these head studs outperform standard factory bolts under extreme conditions.
Ideal for High-Performance Builds: Perfect for enthusiasts pushing the limits of their S58 engines, offering unparalleled durability and reliability.
Direct Fit: Specifically tailored for the turbocharged inline 6-cylinder BMW S58 engine, ensuring a seamless installation and optimal performance.

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Blue Thermostat Caps (pair)

T#:54139632

Part#: BMS-TCP-BLU

Ships in 1 Business Day

$ 29.00 USD

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$ 29.00 USD

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ARP Rod Bolt Set - M20 - 53mm

T#:1061435

Part#: ARP-RBS-M20

Ships on Sep 1, 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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Timing Bolt - Timing Chain Guide Rail - N20, N52, N54, N55, S55 ...

T#:17871156

Part#: 11317592878

In Stock

Sale - Save 20% $ 9.99

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

$ 7.99 USD

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Sale - Save 20%

$ 9.99

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

$ 7.99 USD

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Timing bolt/fastener, found on the timing chain guide rail.

ARP Main Stud Kits - S58

T#:22427031

Part#: ARP-MSK-S58

Ships in 3 Business Days

$ 229.99 USD

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$ 229.99 USD

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Elevate your BMW S58 engines with the ARP Main Stud Kit, replacing part numbers 11118604584. These studs prevent main cap walk, ensuring stability and protecting the engine from potential damage. They also safeguard the engine block threads, adding an extra layer of protection. Opting for main studs over factory bolts requires engine builders to mic the bores. Studs may require a line hone for proper fitment and alignment, ensuring round and concentric main bearing bores, preventing premature bearing wear, and ensuring optimal oil clearance.

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BMW M5 Z8 S62 Solid Lifter Bucket - Priced Each

T#:386362

Part#: 086313029

Special Order: No Guaranteed ETA

$ 69.99 USD

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$ 69.99 USD

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BMW M5 Z8 S62 Solid Lifter Bucket - Priced Each is the ideal upgrade for enthusiasts looking to push the performance limits of their BMW M5 or Z8 with the S62 engine. Hydraulic lifters, while effective at reducing noise and maintenance, can become a bottleneck at higher RPMs due to their reliance on oil, which can slow movement and increase stored weight. By upgrading to solid lifter buckets from Turner Motorsport, you can achieve higher revs and unlock more power from your engine without the drawbacks associated with hydraulic lifters. This upgrade is crucial for those seeking peak performance and reliability.

Enhanced Performance: Allows for higher revs by eliminating the limitations of hydraulic lifters.
Improved Durability: Solid design reduces the risk of failure at high RPMs.
Precision Engineering: Turner Motorsport quality ensures a perfect fit for BMW M5 and Z8 S62 engines.
Optimal Power: Maximize your engine's potential with this essential upgrade.
Priced Per Unit: Allows for customized upgrades based on your specific needs.