ARP FLEXPLATE BOLT KIT - 7/16UNF X 0.680 UHL - CHEV/FORD

Uses 3/4 In. Socket. Will Not Work On 1986 And Later Small Block Chevy With 1-Piece Rear Main. ARP Forged From Aerospace Alloy And Heat-Treated Prior To Thread Rolling And Machining. They Feature An Exclusive Flat 12-Point Head Design And A Larger-Than-Stock Shank Diameter For Increased Strength And Improved Register. Fastener Tensile Strength- 180000 Psi. Black Oxide. 12 Point. Thread Size- 7/16-20 In.