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The main caps hold the crankshaft in place, and the fasteners that secure them carry heavy loads every time a cylinder fires. A stud kit swaps the factory bolts for threaded studs and nuts. Studs stay put in the block while the nuts are tightened. This gives more even clamping force and protects the block threads during repeated teardowns. Builders fit them when they add boost, raise rpm or plan a rebuild that has to last.
This page sits under Engine Components › Main Stud Kit. We have 18 kits in stock, all from ARP. Examples include the ARP VW/Audi 2.0L (FSI) 4cyl Main Stud Kit and the ARP Audi 5-Cylinder 96 & Earlier Main Stud Kit. Fitment data also covers vehicles such as the Chevrolet Silverado 1500, Dodge Ram 2500 and Mitsubishi Lancer.
A few points to weigh before you order:
Match the kit to your exact engine family, not just the vehicle model.
Ask your machinist whether the block may need line honing after the switch.
Follow the torque and lubricant guidance that comes with the kit.
Inspect the block threads for damage before installation.
To narrow the list, pick your vehicle to see what fits.
The main caps hold the crankshaft in place, and the fasteners that secure them carry heavy loads every time a cylinder fires. A stud kit swaps the factory bolts for threaded studs and nuts. Studs stay put in the block while the nuts are tightened. This gives more even clamping force and protects the block threads during repeated teardowns. Builders fit them when they add boost, raise rpm or plan a rebuild that has to last.
This page sits under Engine Components › Main Stud Kit. We have 18 kits in stock, all from ARP. Examples include the ARP VW/Audi 2.0L (FSI) 4cyl Main Stud Kit and the ARP Audi 5-Cylinder 96 & Earlier Main Stud Kit. Fitment data also covers vehicles such as the Chevrolet Silverado 1500, Dodge Ram 2500 and Mitsubishi Lancer.
A few points to weigh before you order:
Match the kit to your exact engine family, not just the vehicle model.
Ask your machinist whether the block may need line honing after the switch.
Follow the torque and lubricant guidance that comes with the kit.
Inspect the block threads for damage before installation.
To narrow the list, pick your vehicle to see what fits.
