High Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 psi (which is 15% stronger than Grade 8) and kits come complete with hardened parallel-ground washers.
- Style:
- Bolt
- Thread Size:
- N/A
- Head Style:
- 12-point
- Undercut Stud:
- No
- Washers Included:
- Yes
- Washer Style:
- N/A
- Material:
- Chromoly
- Finish:
- Black Oxide
- Quantity:
- Sold as a kit.
- Make:
- Chevrolet
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 6.5L/396-7.4L/454
- Years:
- 1966-2000
- Engine Family:
- Chevy big block Gen V
- Years:
- 1991-1995
- Engine Family:
- Chevy big block Gen VI
- Years:
- 1996-2000
- Engine Sizes:
- 7.4L/454
- Cylinder Head Style:
- Bowtie aluminum,Dart Pro 1, Merlin, Pro Top Line, World Products
