What size pushrods and rocker studs does this guide plate work with?

This COMP Cams guide plate is specifically designed for 5/16-inch diameter pushrods and 8mm rocker studs. It's crucial to match these dimensions to ensure proper alignment and function within your engine.

Why are guide plates necessary for performance LS engines?

In performance engines with higher lift camshafts and stiffer valve springs, the increased forces can cause pushrods to flex or misalign. Guide plates keep the pushrods centered and aligned, preventing wear and ensuring consistent valve operation.

What kind of cylinder heads are required for this guide plate?

This guide plate is intended for GM LS engines that utilize "rectangle port" cylinder heads. Examples of compatible head types include those found on the LS3, L92, L99, and L76 engines.

COMP Cams LS3 Raised Guide Plate 4840-1

Name: COMP Cams Guide Plate LS3 Raised 5/16in
Brand: COMP Cams
Price: 9.95 USD
Availability: InStock

COMP Cams Guide Plate LS3 Raised 5/16in

$9.95

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams is known for performance valvetrain components. This LS3 raised guide plate fits many GM LS engines.

Key Features

Fits 16+ vehicle make/model combinations.
Designed for 5/16" diameter pushrods and 8mm rocker studs.
Works with GM LS engines featuring "rectangle port" cylinder heads (e.g., LS3, L92, L99, L76).
Flat, one-piece, non-adjustable design with rounded pushrod contact points.
Hardened steel construction with a black oxide finish for durability.
Necessary for high lift and high spring pressure environments in performance engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

COMP Cams is a well-known name for performance valvetrain parts, and this guide plate is a solid option for your GM LS engine build. It's designed to work with 5/16-inch diameter pushrods and 8mm rocker studs, specifically for GM LS engines that have the "rectangle port" cylinder heads like the LS3, L92, L99, and L76. These guide plates are essential when you're running higher lift camshafts and stiffer valve springs, as they help keep the pushrods aligned correctly under increased pressure.

This particular guide plate is a flat, one-piece design that fits right and features rounded contact points for the pushrods. COMP Cams used stereo lithography techniques to ensure an accurate fit, and the hardened steel with a black oxide finish means it's built to last in demanding engine conditions. It's a direct replacement for the guide plate found in their Ultra Pro Magnum Rocker Kit #16765-Kit, making it a straightforward component for many performance LS builds.

This guide plate fits a wide range of GM vehicles, including popular models like the Chevrolet Camaro, Cadillac CTS, and GMC Sierra 1500. It's a necessary piece for anyone looking to ensure their valvetrain stays properly aligned during high-performance operation.