PROFORM 66752 WEDGE-LOCKING HEADER BOLTS – PROFORM 66752
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 sixteen Hex Head, Grade 8 (12.9) steel bolts (3/8″-16 thread, 3/4″ long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.
- Applications:Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB 289-302-351W, Mopar 413
- Category:Header Bolts
- Color:Black Oxide
- Diameter:3/8-in.
- Feature/Benefit:Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts
- Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.
- Finish:Black Oxide
- Length:3/4 inch
- Material:Steel
- Part Type:Header Bolts
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- Affordability PROFORM Parts are designed to provide you with the optimum combination of high-quality and affordable value. Our prices are the result of experienced and efficient global manufacturing – not cutting corners! Our experienced team of managers, product designers, engineers, and production personnel work to serve our customers, find ways to provide value and meet the needs of the enthusiast with high-quality, affordable parts within everybody’s budget.
