Automotive Racing Products (ARP) Connecting Rod Bolt Set 134-6403; High Performance Wave-Loc 3/8 in. Beveled Square Through Bolt Black Oxide 8740 Chromoly for Chevy 305-350

Fits, 305, 307, and 350 cu.in small block Chevrolet V8. ARP's 134-6403 Wave-Loc connecting rod bolts are made from the same 8740 chrome moly steel as their High Performance bolts are. The difference is the design of the shank. The exclusive and patented waves provide an interference range of .0005 to .0007 for proper rod cap alignment. Unlike a knurled bolt which has sharp edges that can introduce stress risers and promote rod failure ARP's 134-6403 symmetrical waves are smooth and stress free. Galling and scoring of the rod is eliminated because there is only smooth contact and no digging.