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The cylinder head sits on the block with a gasket between them, and the fasteners that tie the two together have to resist combustion pressure trying to push the head up. A stud kit threads studs into the block and leaves them there, with nuts torqued down on top. That gives more consistent clamping force and spares the block threads during repeated teardowns. Builders often choose studs for rebuilds, higher compression, forced induction or track use, where a lifting head can mean a blown gasket.
This page, found under Engine Components › Head Stud Kit, lists 56 in-stock kits, all from ARP. The range covers older and newer engines alike, from the ARP BMC B-Series Head Stud Kit to the ARP Triumph TR4 12pt Head Stud Kit. Fitment data includes cars such as the Triumph TR4, Mitsubishi Lancer, Acura NSX, Honda S2000 and Mazda Mazdaspeed6.
Match the kit to your exact engine, not just the car model.
Check that there is room to lift the head over the studs with the engine in the chassis.
Use the torque sequence and thread lubricant the maker specifies.
Think about your head gasket and any machining work as part of the same job.
To narrow the list, pick your vehicle and see which kits fit your engine.
The cylinder head sits on the block with a gasket between them, and the fasteners that tie the two together have to resist combustion pressure trying to push the head up. A stud kit threads studs into the block and leaves them there, with nuts torqued down on top. That gives more consistent clamping force and spares the block threads during repeated teardowns. Builders often choose studs for rebuilds, higher compression, forced induction or track use, where a lifting head can mean a blown gasket.
This page, found under Engine Components › Head Stud Kit, lists 56 in-stock kits, all from ARP. The range covers older and newer engines alike, from the ARP BMC B-Series Head Stud Kit to the ARP Triumph TR4 12pt Head Stud Kit. Fitment data includes cars such as the Triumph TR4, Mitsubishi Lancer, Acura NSX, Honda S2000 and Mazda Mazdaspeed6.
Match the kit to your exact engine, not just the car model.
Check that there is room to lift the head over the studs with the engine in the chassis.
Use the torque sequence and thread lubricant the maker specifies.
Think about your head gasket and any machining work as part of the same job.
To narrow the list, pick your vehicle and see which kits fit your engine.
