Strengthen the bottom end of your BMW S85 engine with the ARP Head Stud Kit - BMW S85, delivering far greater clamping force and sealing than the factory fasteners. Engineered by ARP (Automotive Racing Products), this head stud kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW S85 engine
- Significantly increased clamping force over OEM fasteners
- Improved head gasket sealing and cylinder head clamping
- Ideal for stroker, supercharged and turbocharged builds
- Re-usable — superior to single-use OEM torque-to-yield bolts
- Manufactured from premium, specially heat-treated materials
- Supplied by ARP (Automotive Racing Products), trusted by BMW enthusiasts worldwide
Product Details
Strengthen the bottom end of your BMW S85 engine with the ARP Head Stud Kit - BMW S85, delivering far greater clamping force and sealing than the factory fasteners. Engineered by ARP (Automotive Racing Products), this head stud kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW S85 engine
- Significantly increased clamping force over OEM fasteners
- Improved head gasket sealing and cylinder head clamping
- Ideal for stroker, supercharged and turbocharged builds
- Re-usable — superior to single-use OEM torque-to-yield bolts
- Manufactured from premium, specially heat-treated materials
- Supplied by ARP (Automotive Racing Products), trusted by BMW enthusiasts worldwide
Product Details
The ARP head stud kit for the BMW S85 replaces the factory cylinder head bolts with high-strength ARP studs/bolts that clamp the cylinder head to the block. Designed for the S85, the V10 of the E60 M5 and E63/E64 M6, this is a critical upgrade where sustained high-RPM operation and hard track use demand the maximum possible clamping integrity. Standard torque-to-yield fasteners stretch permanently and lose clamping load over time — ARP hardware restores and increases that clamping force, helping prevent head gasket failure, cap walk and fastener fatigue.
Available options for this engine:
- ARP2000 — a 220,000 psi alloy steel, the proven choice for performance builds and quality rebuilds
Supplied with ARP Ultra-Torque fastener assembly lubricant and torqued in stages to ARP’s specification. After initial assembly, complete a full heat cycle and re-torque the fasteners for a lasting, reliable seal.
Compatibility
BMW S85 Models
- BMW E60 M5
- BMW E63 / E64 M6
Why Choose ARP (Automotive Racing Products)?
- Global leader in performance engine fasteners
- Premium materials with specialist heat treatment
- Manufactured in-house in the USA
- Trusted from street rebuilds to professional motorsport
Why Buy from R44 Performance?
R44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.
- BMW specialists
- Genuine ARP (Automotive Racing Products) products
- Fast UK & worldwide shipping
- Expert product support
Upgrade your BMW S85 build with the ARP Head Stud Kit - BMW S85 — available now from R44 Performance.
Compatibility
BMW S85 Models
- BMW E60 M5
- BMW E63 / E64 M6
Why Choose ARP (Automotive Racing Products)?
- Global leader in performance engine fasteners
- Premium materials with specialist heat treatment
- Manufactured in-house in the USA
- Trusted from street rebuilds to professional motorsport
Why Buy from R44 Performance?
R44 Performance supplies premium BMW performance and engine-building components trusted by enthusiasts worldwide.
- BMW specialists
- Genuine ARP (Automotive Racing Products) products
- Fast UK & worldwide shipping
- Expert product support
Upgrade your BMW S85 build with the ARP Head Stud Kit - BMW S85 — available now from R44 Performance.
Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.
It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.
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For out of stock items we will contact you with an estimated wait time if not otherwise specified above.
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PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.