GM "Corvette" script finned aluminum valve covers. These covers were originally used on all 1957- early 1959 high performance Corvette engines with dual 4 barrel or fuel injected engines. These will also fit all Original 1955-early 1959 Chevy 265 & 283 cylinder heads with staggered bolt pattern valve cover mounting.These covers are meant for use on on old style engines only with oil fill tube in intake, and block breather in the valley. They have no holes or provisions for oil fill, PCV or breathers.
These valve covers are made using old GM tooling and as such they have imperfections in the castings. These covers may have minor pits and bubbles in the finish. The original valve covers produced years ago generally were not perfect either.