Replaces standard factory bolts with grade 8 bolts,& high tech cup washers, machined from aircraft quality 6061 T-6 billet aluminum, manufactured on high tech CNC machines. Anodized in five bright dip colors, our dress up engine parts are made in America.
INTAKE MANIFOLD KIT, BIG BLOCK CHEVY, 396, 427, 454 -- This kit includes grade 8 bolts and cup washers. I designed cup washers in the 80s, to take the place of a regular flat washer, and to in crease the holding surface of a socket head bolt. All of our parts are made of high grade 6061 T-6 aircraft, billet aluminum
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