Cylinder Head Bolt Kit for Pontiac 350-400-428-455 cid with D port heads (1967 & later)

Cylinder Head Bolt Kit for Pontiac 350-400-428-455 cid with D port heads (1967 & later)High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates theneed 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. Material: 8740 Chrome Moly Finish: Black Material 2: Finish 2: Origin: USA

These ultra heavy-duty rod bolts are made from a special material designated ARP2000

Material: L19

Studs and bolts come either black oxide chrome moly or polished ARP Stainless

wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry ofstripping the head

drive ratchet orbreaker bar to facilitate rotating the crank assembly

Material: Stainless Steel

000 psi bolts that let you exert maximum clamping force

Washers and nuts included where applicable

Material: 8740 Chrome Moly

All Pro Series head bolts have areduced wrenching hex or 12-point head and wide area flange to permit the use of larger diameter valve springs and eliminate theneed for valve train removal during cylinder head retorquing

and the favoriteof leading professional engine builders in all forms of racing

heat-treating to 190