These ARP High Performance series head bolt kits are tough! They are rated at 170,000 psi--15 percent stronger than Grade 8 fasteners.

These Pro series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

Toyota 1.6L (2TC) 1.8L (3TC), 12-point nuts, ARP Head Studs 203-4206ARP Head Stud Kits with 12-point Nuts. It is for good reason that virtually every top professional engine builder relies on ARP head studs for their all-out competition powerplants.

ARP Toyota 3Sgte Ca625+ Head Stud Kit, Part #203-4207. Tick Performance is proud to offer the entire ARP (Automotive Racing Products) line. If you don't see what you're looking for here, please contact our friendly sales staff either by phone or email for assistance!

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

ARP uses a premium grade 8740 alloy that is rated far superior to “aircraft” quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 190,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi.

ARP Toyota 1.6L 4Age 20V Head Stud Kit, Part #203-4304. Tick Performance is proud to offer the entire ARP (Automotive Racing Products) line. If you don't see what you're looking for here, please contact our friendly sales staff either by phone or email for assistance!

ARP Toyota 2.0L 4U-Gse 4Cyl Head Stud Kit, Part #203-4305. Tick Performance is proud to offer the entire ARP (Automotive Racing Products) line. If you don't see what you're looking for here, please contact our friendly sales staff either by phone or email for assistance!

ARP Toyota 1.5L 1Nzfe Dohc 4Cyl Head Stud Kit, Part #203-4101. Tick Performance is proud to offer the entire ARP (Automotive Racing Products) line. If you don't see what you're looking for here, please contact our friendly sales staff either by phone or email for assistance!

Toyota "F" 3.8L inline 6-cylinder Head Stud Kit