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Chevy™ Big Block, 396, 427, 454, 502, CHEVROLET® Script
    Chevy™ Big Block, 396, 427, 454, 502, CHEVROLET® Script
    Purchase Chevy™ Big Block, 396, 427, 454, 502, CHEVROLET® Script
    • Chevy™ Big Block, 396, 427, 454, 502, CHEVROLET® Script
      Part Number: vc-asm-9737

    • Price for set of 2 covers. Includes mounting bolts.
      Price varies with finish. READ MORE

      $0.00

    •  

    Dimensions: Click here for a pdf file with dimensions. A separate window or tab will open.

    Finishes: Read about finishes and construction of PML parts.

    These heavy duty valve covers from PML for big block Chevy engines feature raised CHEVROLET script and fins and top quality construction. The classic CHEVROLET script is licensed from General Motors.

    Benefits:

    • Traditional design and sand cast aluminum construction for an old-school look and feel
    • PCV and oil fill/breather holes
    • Holes have internal baffles cast to reduce oil blow-by
    • Thick walls and gasket flanges for strength and a secure seal to the cylinder head

    Chevrolet big block engines include: 396, 427, 454, and the 502

    PML also makes a tall height version of this design.

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

    PML designed these valve covers using original GM cast iron heads. Chevrolet Big block engines include: 396, 427, 454, and the 502.

    These valve covers are standard height on the inside but taller than stock on the outside because of the thick walls and script and fins on top.

    Engine configurations so check clearances.

    Our thanks to those who have emailed us pictures.

    1971 El Camino, LS Engine

    The Roadster Shop in Mundelein, Illinois, used a custom adapter to fit these PML Big Block Chevy valve covers on an LS engine during a restoration of a 1971 El Camino.

    1971 El Camino with an LS Engine 1971 El Camino   LS Engine in a 1971 El Camino LS Engine   Driver side of LS Engine with PML Chevy Big Block valve covers PML valve cover, driver side of LS Engine   PML valve covers, 1971 El Camino LS Engine PML Big Block valve covers on 1971 El Camino with LS Engine
    Click on image to view larger in a new tab or window.

    1967 Chevelle

    Joe from Washington emailed us pictures of his 1967 SS396 Chevelle with a cast iron ZZ454 crate engine.

    1967 Chevelle 1967 Chevelle SS396   Passenger side of ZZ454 engine, PML valve covers Right side of ZZ454 engine, PML valve cover, chrome breather, 1967 Chevelle   PML valve covers on ZZ454 Cast iron ZZ454 crate engine, PML valve covers, chrome breathers, 1967 Chevelle   Working on engine in a 1967 Chevelle Installing PML valve covers on ZZ454 in a 1967 Chevelle
    Click on image to view larger in a new tab or window.

    Chevy Valve Covers On Customer Engine

    1962 Bel-Air

    Robbie Robinson provided us with pictures of his 1962 Bel-Air. He purchased these valve covers in the as-cast finish then polished the top of the fins and script.

    Click on the small image to view a larger picture in a separate window.

    1958 Nomad

    The images below show PML Chevrolet big block engine valve covers installed on a 1958 Nomad with a 502 engine. Tommy from Atlanta shared these pictures of his beautifully restored Chevy.

    PML Chevy Valve Covers On a 1958 Nomad, 502 Engine     PML Chevy Valve Covers On a 1958 Nomad, 502 Engine     PML Chevy Valve Covers On a 1958 Nomad, 502 Engine
    Click on image to view larger.

    Breather and PCV Holes

    PML Chevy big block valve covers have PCV and oil fill/breather holes and baffles cast into the covers. The internal baffles help prevent oil blow-by out the PCV and breather holes.

    These holes work with standard 1 1/4 inch grommets.

    If desired, a breather cap with a 1 inch outer diameter tube can be used with the breather grommet.

    PML big block valve cover with breather installed Close up view showing that the PML Big Block Chevy valve cover has a good fit with grommet and chrome push-in breather cap installed   PML big block valve cover with breather and grommet, not installed PML Big Block Chevy valve cover, breather grommet, and chrome breather cap   Top view of PML big block valve cover with chrome breather PML Big Block Chevy valve cover, breather grommet and chrome breather cap installed, top view
    Click on small image to view larger image in a new tab or window.

    Checking Clearance

    Click for dimension. A separate window or tab will open.

    Engine configurations vary so please check for clearance for larger valve covers. The walls and gasket flange are thicker than stock and the fins and script add height to the top.

    Look for clearance on the inside also, especially if you have roller rockers. A simple check can be made if you have the stock valve cover. Set the stock cover on the head and measure the distance, if any, between the gasket flange surface and the head.

    The PML tall version of these valve covers is approximately 3/8 inch taller.

    Included With Valve Covers

    These valve covers ship with new mounting bolts and standard PCV and breather grommets installed in the valve covers.

    Image shows polish finish valve covers. The same items are included for all finishes. Click on image to view larger in new tab or window.

    Flyer

    Click to view or print PML Big Block Valve Covers PDF Flyer. A separate window will open and load the pdf file.

    PML Valve Covers Compared to Stock

    PML Valve Cover Part Number 9737 compared to stock   PML Valve Cover Part Number 9737, 
compared to stock, top view
    Click on image to view larger in a new tab or window.