Proform Exhaust Header Bolt - 66827

Name: Proform Exhaust Header Bolt - 66827
SKU: 66827
Price: 48.85 USD
Availability: OutOfStock

Wedge-Locking Header Bolts

Manufacturer: Proform

Manufacturer part number: 66827

$48.85

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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.

Note: Wedge-Locking Header Bolts

Products specifications

Attribute name	Attribute value
Feature/Benefit	Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations.
Category	Header Bolts
PartType	Header Bolts
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
Bolt Grade	Grade 8
Color	Black Oxide, Gray / Black
Head Drive Type	Hex
Material	Steel
Thread Type	Fine
Thread Size	3/8" - 16
Thread Type Standard	Metric
Grade Type	Performance
CFM high/low	2100/1500
Height	15-7/16
Width	23-7/16
Overall depth	2-3/4
Shroud Depth	1-1/8
PWM Specifications	Amp Rating: 70 amp
Prop 65	Yes
Amp draw high/low	22/16.2
Country of Origin	US, TW
Quantity per Application	12