1970 Chevrolet Impala Exhaust Header Bolt 8 Cyl 6.6L Proform
- 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.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1970 Chevrolet Impala | V | - | 8 Cyl 6.6L | 400 |
8 In Stock
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General
Diameter
3/8-in.
Category
Header Bolts
Feature/Benefit
Wedge-locking Technology Eliminates Constantly Re-tightening Exhaust Collector Bolts; Blocks Bolt-loosening Rotation Caused By Vehicle Vibrations.
Length
3/4 Inch
Applications
Fits Gm Bb 396-502 Exc 348 And 409, Ford 5.0l, Sb 289-302-351w, Mopar 413
Part Type
Header Bolts
Packaging
package quantity
1
length
6.75 in
width
4.50 in
height
1.75 in
weight
1.00 lb
Information on technical characteristics, the delivery set, the country of manufacture and the appearance
of the goods is for reference only and is based on the latest information available at the time of publication.
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