FOR IMMEDIATE RELEASE:
FOR IMMEDIATE RELEASE:
REVOLUTIONARY WEDGE LOCKING GRADE 8
HEADER BOLTS FROM PROFORM® PARTS
Roseville, MI: Introduced at the 2012 SEMA Show, these wedge locking header bolts solve the constant problem of header bolts vibrating loose without the aid of any cumbersome wires, pins, clips, adhesives, or special tools. This 12-piece set of 1-inch header bolts (#66753) covers GM V6, 265-400 small-block, Buick, Olds, Pontiac (’79 and earlier), Mopar big-blocks 383-440 (Except 413) and AMC V8s using 3/8-inch bolts. ¾-inch length is also available in 12 and 16-piece sets (#66751, #66752 respectively) and are commonly used for cast iron heads, where these 1-inch length bolts are recommended for aluminum heads.
These PROFORM header bolts are assembled using a set of factory installed super hard wedge-locking washers, so there are no additional components. Once correctly torqued, the washers’ serrated teeth grip the bottom of the bolt head and the top surface of the header flange. This system prevents rotational movement of the bolt due to the wedge-locking tension created by the two washers interfacing cams. Engine vibration actually increases the wedge locking tension, keeping the bolt secure. When removing the headers, these PROFORM header bolts can be un-tightened with a normal wrench. To view a video of how these unique bolts work visit
PROFORM’s 2013 catalog is full of new licensed performance, dress-up and vehicle enhancement parts and accessories for Chevrolet® and Ford®. Innovation, creative design, high quality and affordability are the hallmarks of PROFORM parts in engine dress-up, water pumps, carburetors, alternators, starters, fans, distributors, rocker arms, engine building tools, vehicle scales and more! Visit for everything PROFORM!
For additional information contact the folks at Proform/Specialty Auto Parts, USA, Inc., PO Box 306, Roseville, MI 48066, 586-774-2500, Fax: 586-778-7775 or visit .
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