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Parts
Exhaust
Exhaust Header Bolt
Proform 66756 Exhaust Header Bolt
Proform 66756 Exhaust Header Bolt
$31.96
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Fri, May 24
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SKU
37995667567
BRAND
Proform
Description
Header Bolts, Header Bolts-Black, Header Bolts; Hex Head; 3/8-16 X 1inL, Wedge-Locking Header Bolts; Hex Head; 3/8 dia.
X 1in; Blk Oxide Finish; 16 Pcs, Wedge-Locking Header Bolts; Hex Head; 3/8 dia.
X 1in; Blk Oxide Finish; 16 Pcs, Engine Header Bolts; Wedge-Locking Technology; Hex Head Type; 3/8-16 Thread X 1 Inch Long; Black Oxide Finish; 16 Pcs in kit; Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB 289-302-351W, Mopar 414, 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, 1" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers., Exhaust Header Bolt.
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