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Chevy™ Small Block, 1955-1959 Staggered Bolt Pattern, CHEVROLET® Script and Fins
Valve Covers

P/N 11029

PML 55-59 Chevrolet Small Block Valve Covers, As-Cast FinishPML GM Licensing Stamp PML 55-59 Chevrolet Small Block Valve Covers, Black Powder CoatedPML GM Licensing Stamp
PML 55-59 Chevrolet Small Block Valve Covers, Orange Powder CoatedPML GM Licensing Stamp
PML 55-59 Chevrolet Small Block Valve Covers, PolishedPML GM Licensing Stamp
As-cast finish
$240.00 (set of 2)
Go To Cart
Black powder coating
$375.00 (set of 2)
Go To Cart
Chevrolet Orange powder coating
$375.00 (set of 2)
Go To Cart
Polished finish
$440.00 (set of 2)
Go To Cart

Dimensions: Click here for dimensions in a pdf file. A separate window will open and load the file.

Finishes: Read about finishes and construction of PML parts.

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 most roller rockers.

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.

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.

Please check dimensions in above link to verify clearance for your application.

This is a picture of the inside of the cover.


inside of valve cover

Installations

Our thanks to those customer who have emailed us with pictures of their installations.

Installation on a 1950 Chevy Panel Van

Patrick installed these PML valve covers on his 1950 Chevy Panel Van. The engine is a 1958 Chevy 283 V8. He purchased the polish finish valve covers and customized them with paint across the center to match his van and updated engine compartment.

The images show (from left to right): Van, Engine before overhaul, Custom painting the PML valve covers, Engine after overhaul with PML valve covers
1950 Chevy Van 1950 Chevy Panel Van   1950 Chevy Van engine 1958 283 V8 engine in 1950 Chevy Panel Van before overhaul   custom painting Custom painting PML valve covers to match Chevy   PML valve covers on 1958 Small Block Chevy V8 283 engine Overhauled Chevy 283 engine with custom painted PML valve covers
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Installation on a 1956 Chevy 265 V8

Chuck installed these PML valve covers on his 1956 Chevy. The 265 engine is original with 62,000 miles.

Initially, the covers would not installed because the valve springs were hitting the inside of the covers. The valve spings closest to the bottom two holes rubbed on the indentations for the bolt holes. Grinding off some material made enough clearance. He also needed to grind a small notch next to the intake manifold. This may be specific to the 265 engines, which might have a different fit than the 283 engines that came out in 1957.

1956 Chevy with original 265 engine 1956 Chevy   Rockers on 1956 265 engine Valve springs on rockers on the 1956 265 engine   PML valve cover modification Ground off area on PML valve cover to clear springs   PML valve covers installed on 1956 Chevy PML valve covers installed on 1956 Chevy, original 265 engine
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For a larger picture, please click one of the above images. A separate window will open showing a bigger picture. (The larger pictures take a minute to display.)

PML Valve Cover Features:

  • Strong sand-cast aluminum construction
  • Thick side walls and gasket flanges that will not bend when bolts are tightened
  • Mounting hardware included

Learn more about finishes and construction of PML parts.

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