ARP Toyota 2JZ - Head Stud Kit 625+ 203-4301. ARP Pro Series cylinder head studs are cold-forged to ensure molecular integrity. Heat-treating prior to thread rolling and machining is standard for ARP.
ARP Toyota 7MGTE - Pro Series Cylinder Head Stud Kit 203-4701. ARP main stud kits help eliminate main cap walk/fretting and protect the threads in your engine block.