Proform 66753 - Wedge Locking Header Bolts - 3/8 x 1in (12)
Proform 66753
*some restrictions apply
- Part Number:
- 66753
- SKU:
- BCHW-66753
- UPC:
- 037995667536
- Availability:
- IN STOCK AND READY TO SHIP
Proform - 66753
Header Bolt - Wedge Lock - 3/8-16 in Thread - 1 in Long - Hex Head - Steel - Black Oxide - Set of 12
Fits GM V6, SB 265-400, Buick, Olds, Pontiac 79 and earlier, Mopar BB 383-440 exc 413, AMC V8's w 3/8in bolts
PROFORM Wedge-Locking Header Bolts ELIMINATE the need to constantly re-tighten collector bolts, and without the need for clips, pins, racing-wire, chemicals or gunk. The secret is in the Wedge-Locking Washer's super-hardened external teeth that "bite" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge-locking action that uses tension, instead of friction to stay snug. In fact, contact with oil actually facilitates the effect. Installs/uninstalls with a normal wrench, lubricate, and then reuse. Each set comes with twelve Hex Head, Grade 8 (12.9) steel bolts (3/8"-16 thread, 1" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.
