Free Shipping on All Wheel & Tire PackagesAuthorized Dealer — 100% Genuine WheelsPrice Match Guarantee on All ProductsExpert Fitment Support — 10,000+ Customers ServedPay Over Time · No Credit Needed with Snap
Select your vehicle to see Main Stud Kits that fit
Engine Main Stud Kits for a Solid Crankshaft Foundation
The main caps keep the crankshaft seated in the block. A main stud kit swaps the stock fasteners for studs that thread into the block and take a nut on top. Tightening the nut stretches the stud evenly without twisting it, which gives steadier clamping and helps limit cap walk under load. Builders reach for these kits when adding boost, raising the rev limit or freshening an engine that will see hard use.
Under Engine Components › Main Stud Kits you will find 22 kits in stock, all from ARP. Examples include the ARP Nissan 3.0L VG30DE/DETT DOHC V6 Main Stud Kit and the ARP Dodge Neon SOHC/DOHC Main Stud Kit. Listed fitment covers models such as the BMW M3, Toyota GR Supra, Toyota Corolla, Toyota Pickup and Saturn S-Series.
Match the kit to your exact engine code, not just the model name.
Check whether your block uses a girdle or side bolts that need separate hardware.
Follow the fastener maker's torque and lubricant instructions closely.
Ask your machinist whether the main bores should be checked after the change.
To narrow the list, pick your vehicle and see which kits fit your engine.
Engine Main Stud Kits for a Solid Crankshaft Foundation
The main caps keep the crankshaft seated in the block. A main stud kit swaps the stock fasteners for studs that thread into the block and take a nut on top. Tightening the nut stretches the stud evenly without twisting it, which gives steadier clamping and helps limit cap walk under load. Builders reach for these kits when adding boost, raising the rev limit or freshening an engine that will see hard use.
Under Engine Components › Main Stud Kits you will find 22 kits in stock, all from ARP. Examples include the ARP Nissan 3.0L VG30DE/DETT DOHC V6 Main Stud Kit and the ARP Dodge Neon SOHC/DOHC Main Stud Kit. Listed fitment covers models such as the BMW M3, Toyota GR Supra, Toyota Corolla, Toyota Pickup and Saturn S-Series.
Match the kit to your exact engine code, not just the model name.
Check whether your block uses a girdle or side bolts that need separate hardware.
Follow the fastener maker's torque and lubricant instructions closely.
Ask your machinist whether the main bores should be checked after the change.
To narrow the list, pick your vehicle and see which kits fit your engine.
