Edelbrock part 41433 Classic Series Valve Covers are designed for Chevy 262 - 400 V8 1959 - 86 (with breather holes) applications and have a Black powder coat finish. Edelbrock first made these aluminum valve covers in the late '50s and they're still a classic. Made of heavy - gauge sand - cast aluminum, Overall height is measured from base to top at the highest point. Edelbrock classic valve covers can be machined to accept breathers if desired.