Edelbrock part #8509 Intake Bolt kit is designed specifically for Chevy 348/409 c.i.d. Edelbrock manifolds. This bolt kit features 12-point heads for easy wrench access. Features include cadmium finished steel bolt and hardened washers. Product Features:For Chevy 348-409 c.i.d.Coarse Thread Type5 Bolt Grade 12-Point Head0.375 in. Thread DiameterSteel Material
