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- 12 Pcs
- Hex Head; 3/8 dia. X 3/4in Black Oxide
- Fits GM V6, SB 265-400, Buick, Olds, Pontiac '79 and earlier, Mopar BB 383-440 exc 413, AMC V8's w 3/8" bolts
- Product Attributes:
- Category: Header Bolts
- Feature/Benefit: Wedge-locking Technology Eliminates Constantly Re-tightening Exhaust Collector Bolts; Blocks Bolt-loosening Rotation Caused By Vehicle Vibrations.
- Applications: 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
- Thread Type: Fine
- Head Drive Type: Hex
- Material: Steel
- Finish: Black Oxide
- 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, 3/4" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.
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Suggested Purchase Quantity: 12
- Most jobs typically require 12 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2001 - Chevrolet P30 | V | 4300 | 6 Cyl 4.3L | 262 |
- Locking
This Part Fits the Following OEM/Substitute Numbers:
10501, 10501D, 10504, 10504Y, 10507, 10591, 10591D, 1078-290207, 11504, 11504Y, 11507, 11591, 12F20L, 1H0201553, 307201551, 31778, 31780, 31783...VIEW MORE
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 2001 - Chevrolet P30 | L | 4097 | 6 Cyl 4.1L | 250 |
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