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 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.

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.

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 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.

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.