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Chevy™ Small Block, Perimeter Mount, CADILLAC® Script Valve Covers

Part Number 11107

PML Valve Covers, Chevy Small Block, As-Cast FinishPML GM Licensing Stamp
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PML Valve Covers, Chevy Small Block, Black Powder CoatedPML GM Licensing Stamp
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PML Valve Covers, Chevy Small Block, PolishedPML GM Licensing Stamp
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As-Cast Finish
$350 with PCV, Breather Holes
$250 without
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Black Powder Coat Finish
$500 with PCV, Breather Holes
$400 without
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Polished Finish
$575 with PCV, Breather Holes
$475 without
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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.

Design and Benefits

PML valve covers reproduce the traditional style and shape of the stock valve covers with added height for many roller rocker system. PML sand cast aluminum construction adds thick walls and gasket flanges so there is not any distortion when bolts are tightened.

The classic CADILLAC script and small fins are cast into the cover and raised. The script replicates the 1949 GM CADILLAC logo. These PML valve covers are licensed GM products. On powder coated parts, the powder coat is shaved off the top of the script and fins. On polished finish parts, the area between the fins and the script is not polished so the script and fins stand out.

These PML valve covers are standard flange mount covers for 1959 to 1986 small block Chevy engines (265, 283, 327, 350, 400). The valve covers mount on to the cylinder heads with four bolts on the perimeter, directly across from each other. We fit each cover on a stock GM cylinder head with stock rocker arms.

These covers fit on many engine configurations and feature a mid-height design that will clear many roller rocker systems.

Verify engine configuration, dimensions, and clearance before ordering as PML has a restocking fee.

Fitting on Your Engine Checklist

Configurations vary! Do our Checklist before you order.

We have a Loaner Program if you need a cover to test fit.

Optional PCV, Breather, and Oil Fill Holes

PML Corvette Valve Cover, baffle shown

Our approach to PCV and breather holes is unique so we prepared a document detailing PML Specifications on Oil Fill, Breather and PCV (click to view).

PML small block valve covers can be ordered with or without PCV, oil fill 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 if your engine configuration requires one hole or to discuss your requirements.

PML machining tools

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

We have two videos showing the machining process: step-by-step of PML machining a PCV hole and step-by-step of PML machining a hole for our push-in breather.

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.

PML Valve Covers, hole location

Inside of Valve Covers

These PML valve covers are baffled on the inside. PML offers optional machining for PCV and breather holes where the cover is baffled. A small lip holds the gasket on the flange mounting surface during installation. If needed,

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Replaces PML Part Number 8357-3

This part replaces part number 8357-3, a small block valve cover with CADILLAC script and squared off corners.

PML Valve Covers Compared to Stock

PML Valve Covers Part Number 11107 height compared to stock  PML Valve Covers Part Number 11107, compared to stock
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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.

Installations and Customer Pictures

These CADILLAC script SBC valve covers have been installed on a variety of classic cars.

PML Valve Covers Installed on a 1938 LaSalle

The images below show these PML valve covers installed on a 1938 Cadillac LaSalle Opera Coupe. Our thanks to the owner of this beautiful classic, Thomas Petry.

1938 Cadillac LaSalle Opera Coupe   PML valve covers installed on a 1938 Cadillac LaSalle Opera Coupe   PML Cadillac valve covers, 1938 LaSalle
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PML Valve Covers Installed on a 1940s Ford Deluxe

The images below show these PML valve covers installed on an early 1940s Ford Deluxe. Our thanks to the Bruce for sending pictures.

1940s Ford Deluxe   PML valve covers on a Ford Deluxe  
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PML Valve Cover Features

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