Competition racing valve cover displays the Chevrolet name and Bowtie insignia. It has no holes for PCV or oil fill, but has bosses for drilling them. Designed for pre-1986 engines with perimeter hold downs. Can be used with 18° heads.Pit Stop USA offers GM Performance Tall Cast Aluminum Competition Valve Covers - Natural - Chevrolet Logo - SB Chevy Pre-86 - 23°, 18° - No Holes 10185064 at low everyday prices. Be sure to check out all of our products from GM Performance Parts including GM Performance Parts Aluminum Valve Covers - Small Block Chevy,Valve Covers.