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Proform 66756 - 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.
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 |
: | 1" |
Material |
: | Steel |
Part Type |
: | Header Bolts |
Proform
Proform 66752 - Engine Header Bolts; Wedge-Locking Technology; Hex Head Type; 3/8-16 Thread X 3/4 Inch Long; Black Oxide Finish; 16 Pcs in kit; Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB...
Proform
Proform 66753 - Engine Header Bolts; Wedge-Locking Technology; Hex Head Type; 3/8-16 Thread X 1 Inch Long; Black Oxide Finish; 12 Pcs in kit; Fits GM V6, SB 265-400, Buick, Olds, Pontiac 79 and...
Proform
Proform 66751 - Engine Header Bolts; Wedge-Locking Technology; Hex Head Type; 3/8-16 Thread X 3/4 Inch Long; Black Oxide Finish; 12 Pcs in kit; Fits GM V6, SB 265-400, Buick, Olds, Pontiac '79 and...
Proform
Proform 66755 - Engine Header Bolts; Wedge-Locking Technology; Hex Head Type; M8 Thread X 1.181 Inch Long; Shiny Nickel Plated Finish; 12.9 Steel; 12 Pcs in kit; Fits GM LS Engines with 3/8" Wide...
Proform
Proform 66757 - Exhaust Collector Bolts and Nuts; Wedge-Locking Washer Technology; Hex Head Type; 3/8-16 Thread X 1.25 Inch Long; Black Oxide Finish; 6 Pcs in kitPROFORM Wedge-Locking Exhaust...
