Make your Chevy LS engine look impressive when you outfit it with these professional two-piece custom valve covers from Pro Series Components. Custom designed and fabricated in the U.S.A.

Our original 2-piece custom valve covers for the LS engine feature 6061-T6 billet aluminum lids while the base is made of 319 cast aluminum.

The lid is machined for and sealed with a hi-temp silicone o-ring while the base uses a standard OEM valve cover gasket that you supply. The integrated posts built into the base ensures a proper crush on an OEM gasket. Mounting hardware included. They are available with a plain, un-machined lid, a finned lid or a custom lid.

The valve covers are 19.674” overall length and 6” overall width. Looking at the end of the valve covers the dimensions would be:

  • Intake manifold side is 2.032” tall at the outer edge.
  • Exhaust manifold side is 3.062” tall at the outer edge.
  • The raised center portion is 3.75” wide and adds another .50” to the above dimensions.

*To ensure you have the room for these valve covers before ordering, please print the PDF template below, cut it out, and check for brake booster and firewall and other restrictions first.

(PDF Download Link for printing)

*To add oil to the engine, you will need to remove the top lid unless a fill cap is added. Available as a custom order

*These valve covers do not have a provision for the PCV valve, but an AN fitting could be added if needed as a custom order. (If needed the GM #12599296 valley cover has a pvc built-in)

*For off-road use only

WARNING: This product can expose you to chemicals including [name of listed chemical(s)], which is [are] known to the State of California to cause [cancer and/or birth defects or other reproductive harm]. For more information, go to

California Air Resources Board (CARB)

CARB prohibits the sale or use of parts that will modify or defeat emissions systems in any 1966 and newer vehicles. This does not restrict sale of approved replacement parts, those granted an executive order (EO) number by the California Air Resources Board or race only vehicles. Items not approved by CARB will not be sold to California residents either by mail order, customer call center or website orders. Please check the following link to ensure your vehicle compliance CARB Aftermarket Parts (

Chevy LS 2-piece valve covers

The plain version allows you to modify, paint, machine, engrave or customize the lid any way you want. The base is as-cast unfinished.


The finned version has the fins already machined into the aluminum lid, giving your engine a sharp custom look. The base is as-cast unfinished.

Custom Emblem

The custom version is just that. Order with our standard emblem or we can modify it to your specifications. Contact us for a quote.

Bases Only

You can also purchase the bases only for a two-part valve cover system. The base is as-cast unfinished; machined castings.


PSC has developed the most unique custom valve cover for the LS engine on the market…period. But, we didn’t stop there. We leave it up to your imagination on how you want to finish them.

Since so many people have different tastes, we are making these available in bare 319 cast aluminum. We let your creativity take it from there. 

Do you have a painted engine bay and want to match colors? With these, you can DO IT. Powder coat, paint, clear coat or leave them bare.

PSC Series 2 valve cover set with the lid off the head
Dress your LS

Vents are bare 5200 aluminum with a brushed finish. But why leave them that way? Polish, candy coat, anodize, or just use them as a template to make your own version. These will truly make your engine bay the talk of the show, and ‘Dress your LS.’

All bases are the same. Cast in 319 aluminum and machined for a stock valve cover gasket (Fel-Pro VS50504R). They also have positive internal mount posts, just like the originals. to ensure proper gasket crush at installed torque. They accept either stock LS Gen 1 or Gen 5 coil packs (AC-Delco 12558948 & 12573190).

Flip your Lid!

Our new lid can also be flipped 180º on the base, allowing the fins to be at the top or the bottom. This changes the position of the vents and is another way to personalize your build.

PSC series 2 valve cover rotated in opposite direction on a Chevy LS head with chrome header

Our valve covers are unique and made for custom applications. With that being said, you will probably run into things that will need to be re-routed or changed, in order to make them work with your specific application.

Read below for some of the things we have found while developing these valve covers that you should keep in mind before ordering and during installation. Please be sure to check possible width and height obstructions prior to placing your order.

The valve cover is 3/16” longer than the head on both ends.

We recommend Fel-Pro VS50504R Valve Cover Gasket to ensure proper torque and gasket crush with our positive mount stops.

There is a hole in the base to accomodate coil pack wiring. Weather pack connector is made to fit inside the cover, with the tail going through the hole. (wiring grommet supplied).

Accepts either stock LS Gen 1 & Gen 5 coil _packs (AC-Delco 12558948 & 12573190).

Side Vent Lid
(Side Vent Detail )


One-window vent lid
One Window Vent Lid


Two Window Vent Lid


milled slots lid
Milled Slots Lid



We have lots of screens from which to choose. Click on the type of screen to view your options.


Our 1967-68 Chevy C10 hood is a revolutionary design that will surely change the whole look of your truck. (Download the PDF here)

Add another custom touch with our custom screens pictured here. Cut the face of the inverted drop-downs and adhere these in from the backside.

  • Proudly designed and made in the USA.
  • Only the finest gel coat and fiberglass materials used.
  • Proprietary molds and tooling built by master mold maker.
  • Fiberglass monocoque construction offers lightweight without compromising strength.
  • Steel mounting plates are glued and fiberglassed into the hood for ultimate strength. Works with either OEM style Chevrolet hood hinges or Porterbuilt Fabrication hinges.

* Does not fit 1969-72 Chevrolet C10s

Valve Spring Changers

The Manipulator custom valve spring changing tool

The Manipulator model is the most versatile valve spring changing tool for shaft-mounted rockers.

The Sprint valve spring changing tool

The Sprint model valve spring changing tool allows you to easily change two springs per set-up.

The Dyno model valve spring changing tool

The Dyno model valve spring changing tool has a single body and is the perfect universal tool.

Spring cup for changing valve springs

The Valve Spring Cap should be used with high seat pressure springs. This eliminates slippage and makes changing springs easy.

Pro Series Components

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266 Hwy D Kaiser, MO 65047


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