3/8-24 x 1.500 12pt black oxide bolts

3/8-24 x 1.500 12pt black oxide boltsMaterial: 8740 Chrome Moly Finish: Black Material 2: Finish 2: Origin: USA

while expensive

And because TTY bolts are yielded by design

Special ARP Pro Series NASCAR type stud kits have one of the studs drilled to facilitate sealing the carburetor in the engine by race officials

which makes for amore consistent clamping force – and one that compensates forhead gasket compression when the cylinder heads are installed

Hardened parallel-ground washers are included with each kit

Made from premium grade 8740 andheat-treated to 190

This helps prevent blown head gaskets

there wasn’t a “poly lock” on the market that you didn’t have to continually tighten

Studs are preferred by many Pro engine builders because they eliminate the chance of pinching gaskets and contribute to easier engine assembly

And here’s ARP’s contribution to the solution

Available in a variety of sizes to suit your needs

000 psi for the ARP2000® material