Fits SB/BB & V6 Chev, 3/8-16 Thread x 1.375" UHL

These premium grade bolt and stud kits are engineered to properly engage the engine block threads and resist loosening. They're application-specific, and come in your choice of black oxide finished chrome moly or rust-proof stainless steel, with handy 12-point or standard hex heads. Washers and nuts included where applicable.