Correct 65-75 Chevelle, Camaro, nova, truck, Corvette Chevrolet big block & small block exhaust manifold pipe flange stud & nut kit This kit has the correct black phosphate studs and cadmium plated crimped nut just like the original ones Short studs are 3/8”-16 X 2 1/4” Long studs are 3/8”-16 X 3 1/4” This kit is used when the original heat riser or spacer is in place You will receive 6- nuts 3- short studs 3- long studs Made in the USA
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