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Chevy™ Small Block, Perimeter Mount, Pre-1986, CHEVROLET® Script and Fins
Valve Covers

P/N 10430

PML Valve Covers, Chevy Small Block, Finned, As-Cast FinishPML GM Licensing Stamp
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PML Valve Covers, Chevy Small Block, Finned, Black Powder CoatedPML GM Licensing Stamp
PML Valve Covers, Chevy Small Block, Finned, Orange Powder CoatedPML GM Licensing Stamp
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PML Valve Covers, Chevy Small Block, Finned, PolishedPML GM Licensing Stamp
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As-Cast Finish
$325.00 with PCV, Breather Holes
$235.00 without
Go To Cart
Powder Coat Finish
$440.00 with PCV, Breather Holes
$350.00 without
Black: Go To Cart
Chevrolet Orange: Go To Cart
Polished Finish
$490.00 with PCV, Breather Holes
$400.00 without
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 PML valve covers are standard perimeter mount covers for pre-1986 small block Chevy engines. The CHEVROLET script and fins are cast into the cover and are raised. On powder coated parts, the powder coat is shaved off the top of the script and the fins.

These covers feature a mid-height design that will clear most roller rockers. These valve covers were designed using a stock head and the Jesel Roller rocker system. Please check dimensions in above link to verify clearance for your particular configuration and see our web page on fitting PML valve covers on small block Chevy engines for examples.

Optional PCV, Breather, and Oil Fill Holes

Please read this PDF document on oil fill, breather and PCV set-up (click to view) for pictures and details.

PML small block valve covers are made without holes for PCV, oil fill or breather. The two most common engine configurations are (1) no holes required or (2) two holes required, one hole for PCV and one hole for a breather. Note that either of those holes can also be used for oil fill. We can also machine one hole in one cover (please call for this option).

PML Corvette Valve Cover, baffle shown

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For engines that require PCV and breather holes on the valve cover, PML designed the casting to be thicker on the intake manifold side below the C where an internal baffle is located. This area can machined with a hole. This way, the top of the valve cover is left alone for a clean, classy appearance.

Image shows valve covers with holes machined, PCV grommet, push-in breather, and mounting bolts.

To order the configuration with PCV and breather holes, choose the option in the shopping cart. The option for PCV and breather holes includes one hole in each cover, a PCV grommet, a push-in breather, and an oil fill tube.

Please call to order if your engine configuration requires one hole or to discuss your requirements.

PML machines the valve covers to order in our shop. We use four or five different tools on a CNC machine to create a neat, leak-free hole for PCV, breather or oil fill. Spot facing provides a smooth sealing surface for grommets.

To learn more, we have two videos. Please watch this step-by-step video of PML machining a PCV hole. We also have a step-by-step video of PML machining a hole for our push-in breather.

PML machining tools

Roller Rockers

These PML valve covers work with many engine configurations and roller rocker systems. If you have something other than stock, see our web page on fitting PML valve covers on small block Chevy engines.

Installations

1955 Chevy with 1980 Engine

Ken Bethel is putting this 1980´s engine in his 1955 Chevy.

He said these PML small block Chevy valve covers "are exactly what I had envisioned when I began the search for just the right valve covers for my 55 Chevy project.".

PML Chevy Valve Covers on 1980s Chevy engine
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1955 Chevy Bel Air

Tri-Power Carburetion, by Larry Fulton @ www.HotRodCarbs.com. Our thanks to Larry for sending us pictures and for selecting quality PML valve covers for this project. Owner of this beautiful '55 Chevy is Richie Polleri.

Valve covers were polished and then custom painted.

PML Chevy Valve Covers on Chevy Bel Air PML Chevy Valve Covers on Chevy Bel Air

PML Valve Cover Features

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

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.)

Learn more about finishes and construction of PML parts.

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