11029-P | PML Cover Valve Covers Chevy Small Block Engines From 1955 To 1959, CHEVROLET Script & Fins | Polish Finish

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

Number of Bolts: 

4 per cover, on the perimeter, staggered bolt pattern

Finishes:

These sand cast aluminum valve covers feature raised CHEVROLET 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 CHEVROLET 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 product

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.

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 (sold separately).

Included with Valve Covers

PML includes new mounting bolts with the valve covers.

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.

Inside of Valve Covers

Interior is open, same as stock covers.

PML Valve Covers Compared to Stock

PML valve covers are sand cast aluminum, so they have thicker walls, are taller, and have a rougher texture.

Many original valve covers were die castings or stamped steel. Both have a smooth surface.