Header Bolt Kit for Chevy Big Block 3/8in x .750in Black Oxide 12-PT Head

Header Bolt Kit for Chevy Big Block 3/8in x .750in Black Oxide 12-PT HeadARP manufactures 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. The ARP Stainless material is not affected by corrosion or extreme heat, making it ideal for the pplication. Whats more, the compact 12 point inut lets you easily slip a socket close to the pipe. Studs are manufactured with a unique nut starter nose that helps prevent cross threading.

ARP has developed the “Pro” Series Wave-Loc bolts

the compact 12-point inut lets you easily slip a socket close to the pipe

ARP offers High Performance Series bolts that aremade from a premium grade chrome moly and hardened to a nominal tensile strength of 180

They feature a special billet aluminum sleeve that accurately positions the shaft and keeps it from wobbling

To be used with ARP’s patented Perma-Loc™ adjusters

reciprocating and valve train components

Many professional engine builders prefer to use studs because of their ability to properly position the gasket and guide the cover into position

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

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

thread pitch to thread pitch

000 psi to ensure extended service life of this valuable tool

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