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Small Block Chevy™ LS1 Through LS7, Finned
Valve Covers

P/N 10413

PML SBC LS1, LS2, LS3, LS4, LS5, LS6, LS7 Gen3 Valve Covers, As-Cast Finish   PML SBC LS1, LS2, LS3, LS4, LS5, LS6, LS7 Gen3 Valve Covers, Black   PML SBC LS1, LS2, LS3, LS4, LS5, LS6, LS7 Gen3 Valve Covers, Orange   PML SBC LS1, LS2, LS3, LS4, LS5, LS6, LS7 Gen3 Valve Covers, Polished
As-cast finish
$235.00 (set of 2)
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Black powder coating
$350.00 (set of 2)
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Orange powder coating
$350.00 (set of 2)
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Polished finish
$400.00 (set of 2)
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Dimensions: Click here for dimensions. A PDF file will open in a separate window.

Finishes: Read about finishes and construction of PML parts.

These PML valve covers for LS engines feature a tall height and a clean design with raised fins. This PML design located the PCV/breather/oil fill hole in the center on the intake side. Two recessed bolts per cover (stock uses four) hold the cover on the engine. The sand cast aluminum construction provides stiffness so four bolts are not needed to apply pressure evenly to the gasket.

The valve covers fit the center bolt cylinder heads used in 3rd generation LS Chevrolet® small block engines, 1997 and newer. Versions of these heads are found on Corvette, Silverado/Sierra, Tahoe/Yukon, Camaro/Firebird, and GTO's.

Some early Gen III engines in 1997 and 1998 have 9 bolts on the perimeter of each cover. These valve covers work with the center bolt configuration only.

Stock cover shown here. PML valve covers are taller than stock and clear Jesel roller rockers. The stock covers require four bolts and the oil fill is on the top. With PML covers, a hole on the intake manifold side is used for oil fill, in keeping with the clean, classic design.

Stock LS1/LS6 valve cover

PCV, Breather, and Oil Fill

These valve covers have holes cast into the intake manifold side of the cover for PCV, oil fill and breathers. The holes are 1 inch in diameter. Some applications require larger holes, for example 1 1/4 inches. The cast-in holes can be machined to the larger size if needed. PML has a machine shop and can machine them. There is a fee. Please call for details.

Images below show an example set-up with a a push-in breather (center image) installed and a PCV valve with grommet on the right. PML machined the holes to the larger 1 1/4 inch size. Push-in breather and grommet both available from PML.

PML SBC LS1/LS6 Gen3 Valve Covers, On Engine PML SBC LS1/LS6 Gen3 Valve Covers Breather PML SBC LS1/LS6 Gen3 Valve Covers PCV

This shows the inside of the cover machined for the push-in breather with the breather installed: (Click to view larger image in a separate window or tab.)

Gaskets

PML supplies gaskets, of our design, with each set for a secure seal.

Coil Packs

Coil packs will need to be relocated in order to use these valve covers.

LS valve cover baffles

Baffles

Valve covers feature internal cast-in baffles. Inside of cover pictured at right. The baffle is in the center of the cover where the PCV/oil fill/breather hole is located. The hole is 1 inch but can be machined to 1 1/4 if needed.

Installations

GTO by Willoughby Hot Rods

These images are courtesy of Tim at Willoughby Hot Rods. They are showcasing Devin Houston's 1970 GTO SC/Tiger. PML valve covers installed. This animal is equipped with a Quick Fuel blow through carburetor and 600 horsepower exhausting through a Pypes 3" stainless system.

GTO with PML LS1/LS6 valve covers installed   Stock LS1/LS6 valve covers installed on a GTO   GTO with PML valve covers, driver's side   GTO with PML LS1/LS6 valve covers, passenger's side

Street Trucks magazine article with PML LS valve covers

Street Trucks Magazine, March 2012 Issue

Street Trucks magazine shows the installation of PML LS valve covers on the build of Brass Tacks, a street rodder transformed from a 1976 GMC Jimmy.

Click on image at right for a PDF of the article. A separate window will open and display the pdf file.

Our thanks to Jason Mulligan and Street Trucks.

Grand National Roadster Show 2017

We saw this beautiful truck at the Grand National Roadster Show at the Fairplex in Pomona, CA, in January 2017. The engine does a nice job showing off PML's LS valve covers in the polish finish.

  LS engine, driver's side, GNRS 2017   LS engine, passenger's side, GNRS 2017
Click on image to view larger.

Minge's Universal Service at the Oslo Motor Show, Norway

Minge's Universal Service (www.minges.no) offers PML valve covers on their high performance engines. These images are from Minge's booth at the Oslo Motor Show, November 2011.

Minge's Universal Service with PML LS1/LS6 valve cover &nbps; Minge's Universal Service engine with PML LS1/LS6 valve cover  Click on image to view larger.

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.