The world leader in fastener technology has just released four new header bolt kits for 2013 and later Small Block Chevrolet 6.2L GEN V (LT1) V8 applications. These kits are rated at 180,000 psi tensile strength which is substantially stronger than grade 8 hardware and offered in 30mm lengths for 3/8 thick header flanges. Kits are available in Black Oxide hex or 12 point and rust-free Stainless hex or 12 point head. Washers are included.