Product Overview

Staggered Bolt Pattern.

Price for set of 2 covers. Includes mounting bolts. Does not include gaskets.

For gaskets, see Gasket for Chevy Small Block Valve Covers, Perimeter Mount.

By clicking ADD TO CART, you confirm that you checked fitment and acknowledge PML valve covers Finish and Construction is different from OEM.

Dimensions: Click here for dimensions.

Number of Bolts: 4 per cover, on the perimeter, staggered bolt pattern

Finishes: Read about finishes and construction of PML parts.

These sand cast aluminum valve covers feature raised CORVETTE script lettering and 7 fins. They have perimeter mounting with staggered or offset bolt holes for 1955 to early 1959 cylinder heads. The mid height design clears many roller rockers.

Benefits:

Traditional CORVETTE script and fins
Heavy duty sand cast aluminum construction
Thick flange will not tweak when bolts are tightened
Staggered/offset bolt pattern for 1955 to 1959 cylinder heads
GM licensed

These valve covers do not have a provision for PCV, breather or oil fill because the original valve covers did not have a provision for PCV, breather or oil fill. This was done in the intake manifold.

General Motors Trademarks are used under license to PML, Inc.

Applications:

These valve covers fit Chevy small block GM cylinder heads with the staggered or offset bolt pattern. Four bolts on the perimeter of the flange hold the cover on the head. This bolt pattern was used from about 1955 to 1959.

These valve covers are larger than stock. Check for clearance for larger covers before ordering.

Gaskets

Gaskets are not included with these valve covers. PML designed these Chevy Small Block Perimeter Mount Valve Covers to work with cork composite gaskets.

Mounting Bolt Holes

The holes to mount the valve covers on the engine are about 8.8 inches apart (center to center) on the intake or inside edge and 10 inches a part on the exhaust or outside edge.