1956 Corvette 2x4 9 Fin Aluminum Valve Covers 3726086 Notched Scta Nice on 2040-parts.com

Although Corvette aluminum valve covers look pretty much the same to the untrained eye, there were actually six different variations of them used from 1956-1967. 1. 1956 2x4 engines used P/N 3726086: (9) fins, low (.030”) script, staggered bolt holes, and no notches in the upper seal flange. 2. Later 1956 2x4 engines with a revised intake manifold having larger runners required two cutouts to be added to the upper seal flange to clear the larger intake runners, starting about S/N 1650 (650th car built). There was no part number change, and these covers carried into ’57 production. 3. When fuel injection was introduced in 1957, an interference was found between the air meter and the upper fin on the valve cover, and the middle area of the top fin was milled off on fuel injection engines, starting about S/N 1900. 2x4 engines continued to use the “un-milled” 9-fin valve cover. Again, no part number change. Submitted for your approval: a nice pair of Corvette aluminum valve covers. Notched #3726086. Thanks, scta, russetta, dry lakes, el mirage, muroc, copo, z/28, ocir, Fontana drag, lions drag, last drag race, Pomona drag, swamp rat, cross ram manifold, Stromberg 97, thickstun, holley 3116, enderle, hillborn injection, vertex magneto, ansen, eelco, duntov cam, Bonneville speed, buick gsx, 442, gto, t-10 transmission, m22 rockcrusher, Muncie 4 speed, hurst shifter, dual gate shifter,,