Stylish covers fit 301-455 cubic-inch Pontiac engines manufactured from 1965-1979. Designed for stock valve trains and may not clear aftermarket rocker arms, springs or stud girdles. Each cover has one 1.220" hole on left side for oil fill cap; or grommet for PCV or fresh air inlet. Covers have a natural aluminum finsih with machined Pontiac name and logo. Includes 2 covers and grommet kit P/N 12341988.