Strengthen the bottom end of your BMW S54 engine with the ARP Main Stud Kit, BMW S54, delivering far greater clamping force and sealing than the factory fasteners. Engineered by ARP (Automotive Racing Products), this main stud kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW S54 engine
- Significantly increased clamping force over OEM fasteners
- Improved main cap stability and bottom-end rigidity
- 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 S54B32 / S54 engines with the ARP Main Stud Kit, BMW S54, delivering far greater clamping force and sealing than the factory fasteners. Engineered by ARP (Automotive Racing Products), this main stud kit is built to the standards demanded by high-performance and motorsport BMW builds.
Key Features
- Designed for BMW S54B32 / S54 engines
- Significantly increased clamping force over OEM fasteners
- Improved main cap stability and bottom-end rigidity
- 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
This ARP Main Stud Kit is designed to replace BMW 11112244286 for the S54 engine that was found in E46 M3 and E36/7 Z3 M Roadster, Z4 M Coupe and Roadster, and E46 M3 CSL.
Upgrading from factory main bolts to ARP Main Studs is a simple, yet greatly beneficial upgrade. ARP Main Studs offer the following benefits:
- Uniform Clamping Force: ARP Main Studs provide a uniform clamping force that OEM bolts cannot. With the improved distribution of pressure across main bearing caps comes better, more precise crank alignment for stability and longevity.
- Improved Block Stability and Rigidity: ARP Main Studs improve block rigidity and therefore stability. This ensures maximum power transfer from the crank to the drivetrain, which in turn ensures:
- Improved Throttle Response
- Greater Horsepower
- Higher Torque Output
- Prevent Main Cap Walk: This occurs as main caps shift and move out of position, which can cause crank and engine damage
- Reduced Risk of Fastener Stretching: Under high RPM applications and high loads, factory main bolts are prone to stretching and deforming. ARP uses advanced manufacturing techniques and high quality materials for hardware that is much less prone to deformation under load.
- Safeguard Engine Block Threads: Because ARP Main Studs have unmatched tensile strength, they are much less likely to deform or strip block threads under high loads. Additionally, ARP’s precision machining and manufacturing ensures that stud threads are both highly accurate and consistent.
When opting for main studs instead of factory bolts, it's important to note that the engine builder should mic the bores. Using studs may require a line hone to ensure proper fitment and alignment. A line hone is a machining process that can be used to resize and reshape the main bearing bores, ensuring that they are perfectly round and concentric. This is crucial for ensuring proper oil clearance and preventing premature bearing wear. By mic'ing the bores and performing a line hone if necessary, engine builders can ensure that the main studs are installed correctly and that the engine will perform reliably and at its best.
Installation Instructions:
To ensure accurate torque readings and proper thread engagement, thoroughly clean all threads in the engine block. If necessary, use an ARP chaser to chase the threads.
Before installing any hardware, carefully inspect and clean it for defects, shipping damage, and proper fit, length, and dimension.
Gently screw the main studs into the engine block by hand until they are snug.
Install the main caps, checking for any binding or misalignment.
Apply ARP Ultra-torque fastener assembly lubricant to the threads of the studs, nuts, and washers. Install the washers and nuts onto the studs and tighten them by hand. It is highly recommended to use the ARP Ultra-torque fastener assembly lubricant provided with the kit, as it provides consistent clamping force and reduces friction on the studs. Do not use motor oil or other low-quality lubricants.
PRELOAD (TORQUE) RECOMMENDATIONS
7. Following the manufacturers recommended torque sequence tighten the nuts steps 1-3
Step 1: Tighten to 20 ft-lbs.
Step 2: Tighten to 40 ft-lbs.
Step 3: Tighten to 60 ft-lbs.
with ARP Ultra-Torque fastener assembly lubricant
BMW S54 Applications:
BMW 3 Series
2000-2006 E46 M3
BMW Z3 Series
2001-2002 Z3 M
BMW Z4 Series
2006-2008 Z4 M
Compatibility
BMW S54 Models
- BMW E46 M3
- BMW Z3 M Roadster / Coupe
- BMW Z4 M Roadster / Coupe
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 S54B32 / S54 build with the ARP Main Stud Kit, BMW S54 — available now from R44 Performance.
Compatibility
BMW S54 Models
- BMW E46 M3
- BMW Z3 M Roadster / Coupe
- BMW Z4 M Roadster / Coupe
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 S54 build with the ARP Main Stud Kit, BMW S54 — 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.
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