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.
Features
- Head Bolt Complete Set
Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
- Style:
- Bolt
- Thread Size:
- 1/2-13 in.
- Head Style:
- Hex
- Undercut Stud:
- No
- Washers Included:
- Yes
- Material:
- 8740 chromoly
- Finish:
- Black Oxide
- Quantity:
- Sold as a kit.
- Make:
- American Motors
- Engine Family:
- AMC inline 6-cylinder
- Engine Sizes:
- 4.2L/258
- Years:
- 1971-1988
- Cylinder Head Style:
- Stock configuration
