Speedmaster PCE279.1003 Chromoly Head Bolt Kit 1/4" Longer for Chevy SBC

Chevy SBC 350 Chromoly Head Bolt Kit - (1/4" Longer) Speedmaster cylinder head fasteners are made from aircraft quality 8740 high tensile strength chromoly steel and cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 190,000 psi. Made from aircraft quality 8740 high tensile strength chromoly steel Cold-forged to ensure molecular integrity