1977 Chevrolet Impala Exhaust Header Bolt Parts

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Wedge-Locking Header Bolts
Hex Head; 3/8-16 Thread X 3/4 in Black Oxide
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 289-302-351W, Mopar 413
Product Attributes:
- 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
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
1977 - Chevrolet Impala	V	-	8 Cyl 5.0L	305

7 In Stock

$52.25 CAD

$62.70 CAD

Wedge-Locking Header Bolts; Hex Head; 3/8 dia. X 3/4in Black Oxide; 12 Pcs
Hex Head; 3/8 dia. X 3/4in Black Oxide
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 earlier, Mopar BB 383-440 exc 413, AMC V8's w 3/8" bolts
Product Attributes:
- 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 V6, Sb 265-400, Buick, Olds, Pontiac 79 And Earlier, Mopar Bb 383-440 Exc 413, Amc V8's W 3/8in Bolts
- Part Type: Header Bolts
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.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Chevrolet Impala	V	-	8 Cyl 5.0L	305

Wedge-Locking Header Bolts; Hex Head; 3/8 dia. X 1in Black Oxide ; 12 Pcs
Hex Head; 3/8 dia. X 1in Black Oxide
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 earlier, Mopar BB 383-440 exc 413, AMC V8's w 3/8in bolts
Product Attributes:
- 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: 1 Inch
- 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
- Part Type: Header Bolts
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, 1" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Chevrolet Impala	V	-	8 Cyl 5.0L	305

Self-Locking 2-In-1; Stainless Steel; Polish Finish; 12 piece
HEADLOCK Locking Header Bolts; Self-Locking 2-In-1; Stainless Steel; Polish Finish; 12 pc.;
HEADLOCK Locking Header Bolts
Product Attributes:
- WARNING CA Proposition 65: No
- Engine Make/Size:
  - Chevy Big Block
  - Chevy Small Block (262-400)
Features:
- Locking Header Bolt Set
- Metric
Headlock Bolts eliminate the need for lock washers, Period. Thats because each Headlock Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
1977 - Chevrolet Impala	V	-	8 Cyl 5.0L	305

Self-Locking 2-In-1; Stainless Steel; Polish Finish; 12 piece
HEADLOCK Locking Header Bolts; Self-Locking 2-In-1; Stainless Steel; Polish Finish; 12 pc.;
HEADLOCK Locking Header Bolts
Product Attributes:
- WARNING CA Proposition 65: No
- Engine Make/Size:
  - Chevy Big Block
  - Chevy Small Block (262-400)
Features:
- Locking Header Bolt Set
- Metric
Headlock Bolts eliminate the need for lock washers, Period. Thats because each Headlock Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.