Chevy™ Small Block, 1955-1959 Staggered Bolt Pattern, CHEVROLET® Script and Fins Valve Covers
Part Number 11029
$250 (set of 2)
|Black powder coating
$400 (set of 2)
|Chevrolet Orange powder coating
$400 (set of 2)
$475 (set of 2)
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.
Interior is open, same as stock covers.
We have a set of these valve covers on SPECIAL.
PML Valve Covers Compared to Stock
These images show a PML valve cover compared to the stock cover. The outside dimensions are shown. The distance to the gasket surface maybe different. See the link below the "Buy Now" button for more information on dimensions.
Many original valve covers were die castings or stamped steel. Both have a smooth surface.
The images below show this PML valve cover compared to a typical die casting, GM part 3726086.
PML valve covers are sand cast aluminum, so they have thicker walls, are taller, and have a rougher texture. The classic CHEVROLET script is a General Motors Trademarks used under license to PML, Inc.
Read more about finishes and construction of PML parts.
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
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.
Valve springs on rockers on the 1956 265 engine
Ground off area on PML valve cover to clear springs
PML valve covers installed on 1956 Chevy, original 265 engine
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:
Learn more about finishes and construction of PML parts.
General Motors Trademarks are used under license to PML, Inc.
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