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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 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
PML Valve Covers, Chevy Small Block, Finned, PolishedPML GM Licensing Stamp
As-cast finish
$230.00 (set of 2)
Go To Cart
Black powder coating
$350.00 (set of 2)
Go To Cart
Chevrolet Orange powder coating
$350.00 (set of 2)
Go To Cart
Polished finish
$395.00 (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 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 and/or ratio rockers. There is no correlation between roller rocker ratio and fitment of our valve covers. It is based on the actual physical dimensions of the parts. 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.

Optional PCV, Breather, and Oil Fill Holes

PML Corvette Valve Cover, baffle shown

PML small block valve covers are made without holes for PCV, oil fill or breathers.

For engines that require PCV, oil fill or breather 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. PML has a machine shop and can machine holes for $40 per hole.

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

PML uses four or five different tools on a CNC machine to create a clean, 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 breather hole.

PML machining tools

Please call to order if your engine configuration requires holes for PCV, oil fill or breather.

PML Small Block Valve Covers on Edelbrock Performer RPM Cylinder Heads

Our thanks to Braun's Automotive in Lomita, CA for working with us. Contact Braun's at (310) 325-4303 or see www.braunsautomotive.com.

PML Small Block Chevy valve covers can work with Edelbrock Performer RPM kits. However, the baffle on the PML valve covers will hit the pins unless the baffle is reduced in size. PML can machine the baffle to reduce the size if needed. For the Performer RPM, the distance between the pins is 1.16 inches. Out of the box our baffle is 1.2 inches. Call or email us if you need information.

Installing PML valve covers with a gasket, top view   Installing PML valve covers with a gasket   Suggested gasket for PML small block Chevy valve covers

The cylinder head is number 6089. The PML valve cover shown is our 25th anniversary edition but the same information applies to all PML small block chevy perimeter mount valve covers.

PML Small Block Valve Covers with T&D Rocker Arms

PML designed small block Chevy valve covers to work with many roller rocker systems, such as Jesel. However, our valve covers are not compatible with T&D Shaft Mounted Rocker Arms.

The T&D Machine Products Competition Rocker Arms are shown in the image at left. The shaft mounts are very tall, almost to the top of the rocker arms. The PML cast-in internal baffles will contact these mounts.

shaft mounted rocker arms
Click on image to view larger.

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
Click on image to view larger.

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.