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.
- Head Style:
- Flanged 12-point
- Thread Size:
- 3/8-16 in.
- Underhead Length (in.):
- 1.375 in.
- Material:
- 8740 chromoly
- Finish:
- Black oxide
- Quantity:
- Sold as a kit.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen I
- Engine Sizes:
- 4.3L/262-6.6L/400
- Years:
- 1955-2002
- Engine Family:
- GM V6
- Engine Sizes:
- 4.3L/262
- Years:
- 1985-2012
