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Mr. Gasket

Mr. Gasket Header Bolts - 3/8-16 x 3/4 Inch Hex Head - Set of 16

Fits 1965-1990 Chevrolet 396-454 Big Block and 1962-2001 Ford 221-351W

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Designed for make header installation easier and heat-treated for extra strength. The special washer faced, smaller-than-standard hex head is for tight spaces. These bolts are grade 5 with a 7/16 inch hex head and a protective black finish, except where noted. Set of 16. 3/8 inch-16 x 3/4 inch.


  • 16 per Package

About Mr. Gasket

Using his own '57 Chevy as a rolling testbed, drag racer Joe Hrudka launched the most famous gasket company in the world more than half a century ago. Mr. Gasket is the go-to gasket source for racers with gaskets and fasteners that seal perfectly every time.

Brand Mr. Gasket
Emission Code5
FinishBlack Oxide
Product TypeHeader Bolts
Size3/8-16 x 3/4
WarrantyLimited 90 Day
Part Number919G

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Limited 90 Day: See Details

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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.