These ARP High Performance series head bolt kits are tough! They are rated at 170,000 psi 15 percent stronger than Grade 8 fasteners. They come available with hex heads or reduced wrenching 12-point heads that eliminate the need for valvetrain removal when re-torquing cylinder heads.
- 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.
- Notes:
- Includes 1/2 in. to 7/16 in. insert washers for cylinder heads with 1/2 in. bolt holes.
- Make:
- Ford
- Engine Family:
- Ford small block Windsor
- Engine Sizes:
- 4.7L/289-5.0L/302
- Years:
- 1963-2001
- Cylinder Head Style:
- Windsor
- Cylinder Head Style:
- Edelbrock Performer
- Cylinder Head Style:
- Edelbrock Performer RPM
