Dimensions: Click here for dimensions.
Number of Bolts: 9 mounting bolts per cover, on the perimeter
Finishes: Read about finishes and construction of PML parts.
These are heavy duty valve covers for Cadillac 368, 425, 472 & 500 engines with classic CADILLAC script raised above the top.
- Traditional CADILLAC script
- Open interior to clear many roller rockers and stud girdles
- Strong, sand cast aluminum construction
- No warping or tweaking due to thick walls and flange
- Machined gasket surface providing for a good seal to the cylinder head
- Optional machining for PCV, breather and oil fill
- New mounting bolts included
The script is cast into the covers. On the powder coat finishes, the powder coating is brushed off the top of the lettering so the script stands out.
Claim to fame! These PML Cadillac valve covers were shown on Fast N' Loud "Big Red Caddy" episode, 1967 Convertible, Part 2, about 20 minutes in.
We have a set, polished, machine engraved with flames on special.
General Motors Trademarks are used under license to PML, Inc.
These are heavy duty valve covers for Cadillac 368, 425, 472 & 500 engines.
These valve covers were designed to fit the iron cylinder heads. Modification may be needed for some aluminum heads and roller rockers.
Example of iron cylinder head:
We want to make sure you get valve covers that will work on your engine and you love looking at. With that in mind we have a program for borrowing a PML valve cover to test fit on an engine. Learn more about the PML Loaner Program.
PML Cadillac engine valve covers have been installed on many restorations, including classic Eldorados and Coupe de Villes as well as many custom builds.
- 1971 Cadillac Eldorado
- 1948 Ford F1
- 1969 Coupe Deville 427
- 1969 Coupe Deville
Giorgio restored this 1971 Eldorado and chose these PML valve covers to make a statement in the engine compartment.
1948 Ford F1 Installation
Village Customs in North Carolina is restoring this 1948 Ford F1. The 472 Cadillac engine features PML valve covers.
Our thanks to Thomas Sawyer and Josh Joyce of Village Customs at 757–679–8841 for choosing PML valve covers and sharing these images.
1969 Coupe Deville 427
James installed these PML valve covers on his 1969 Coupe Deville 427.1969 Coupe Deville 427 Stock valve covers PML valve covers
Click on image to view larger in a new tab or window.
1969 Coupe Deville Installation
Mihai install these PML valve covers in blue powder coat on his 1969 Cadillac Coupe Deville.
The Speed by Spectre Streamliner included PML valve covers on the engines. Working with CAD Company in New Mexico, PML valve covers topped many Streamline4 engines, including 485 and 529 Cadillac blocks.
These images show PML's Cadillac valve covers installed on the Streamliner Infidel. In September 2010, PML's plain tops were on the Streamliner when reached 407.516 mph.
These valve covers are not available in a polished finish. Please see our Machined Cadillac Script Valve Covers for a polish finish.
These valve covers are sand castings. So they have the texture of sand. This texture usually is visible through the powder coat or paint, similar to an orange peel look and feel.
Read here for more information about finishes and construction of PML parts.
Uses stock gaskets (not included). We recommend cork or cork composite gaskets.
PML sells cork composite gaskets for these valve covers which can be ordered over the phone.
PCV, Breather and Oil Fill Holes
PCV, breather, and oil fill holes are optional. A billet oil cap is also available.
PML can machine holes if needed. Holes can be machined on the top or on the intake manifold side.
Bosses, which look like rings or donuts, on the inside indicate locations where holes can be machined on the top. Holes do not interfer with script.
PML can machine holes to order. This carries an additional fee and is custom machining. Machining must be ordered over the phone.
See this PDF file for more info. It shows pictures of PML Cadillac valve covers with PCV and breather holes and oil caps. File will open in a new tab or window. May take a minute.