These Pro series 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 190,000 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 200,000 psi.

These Pro series 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 190,000 psi.

Buick 215 cid, Rover V8, ARP 124-4003 Cylinder Head Stud kit with hex 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 manufactures a variety of header stud kits to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions.

ARP manufactures a variety of header stud kits to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions.

Buick 3.8L V6, 12 pack, 3/8" Size, 1.670" Overall Length, Stainless 300, 12-point heads, ARP Header Studs 420-1402. ARP Buick Header Bolts & Header Studs are manufactured in a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts.

Headers can represent a sizable investment, so you'll want to keep them securely attached. In addition, exhaust leaks can cost you power and even cause damage to your vehicle.

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 200,000 psi.

Buick350 cid, ARP 124-4001 Cylinder Head Stud kit with hex 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 High Performance head bolts are available with a reduced wrenching hex or 12 point and a wide flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All high performance series bolts are 180,000 psi (Which is 15% stronger than grade 8) and kits come complete with hardened parallel ground washers.

High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.

ARP manufactures a variety of header bolts to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions.

ARP manufactures a variety of header bolts to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions.

ARP manufactures a variety of header bolts to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions.

ARP manufactures a variety of header bolts to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions.

ARP manufactures a variety of header stud kits to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions.

Buick 350-455 cid, 14 pack, 3/8" Size, 1.670" Over All Length, 12-point head, Stainless 300, ARP Header Studs 420-1401
ARP Buick Header Bolts & Header Studs are manufactured in a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts.

Buick 350-455 cid, 14 pack, 3/8" Size, 1.670" Over All Length, Hex head, Stainless 300, ARP Header Studs 420-1411
ARP Buick Header Bolts & Header Studs are manufactured in a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts.

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 200,000 psi.

These Pro series 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 190,000 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 200,000 psi.

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

Buick455 cid, ARP 125-4001 Cylinder Head Stud kit with hex nuts.It is for good reason that virtually every top professional engine builder relies on ARP head studs for their all-out competition powerplants.

Buick Stage 86-87 GN & T-Type hex head bolt kitHex heads, order ARP 123-3703 for 12-point heads

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.

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

Buick V6, Stage 1 (1977-1985) ARP 223-3701 12-Point Pro Series, Cylinder head bolts. Head bolts are available with a reduced wrenching 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing.

These Pro series 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 190,000 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 200,000 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 200,000 psi.

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

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 200,000 psi.

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

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 stainless steel cylinder head bolts are 15 percent stronger than Grade 8 steel. They have a compact head that will allow a socket to fit into those tight, tricky spaces. These bolts are both highly corrosion and heat-resistant, they have a polished finish, and come in 12-point and hex-style heads.

ARP stainless steel cylinder head bolts are 15 percent stronger than Grade 8 steel. They have a compact head that will allow a socket to fit into those tight, tricky spaces. These bolts are both highly corrosion and heat-resistant, they have a polished finish, and come in 12-point and hex-style heads.

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.