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

This COMP Cams guide plate is designed to work with 3/8-inch diameter pushrods and 8mm rocker studs. It's a specific fitment for these components within the GM LS engine platform.

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

This guide plate is intended for GM LS engines that feature "cathedral port" cylinder heads. This includes popular applications like the LS1 and LS6 engines.

What is the finish on this guide plate and why is it important?

The guide plate has a hardened steel construction with a black oxide finish. This finish adds durability and helps protect the steel from corrosion, which is important for longevity in a high-performance engine environment.

COMP Cams GM LS1 Guide Plate 4856-1

Name: COMP Cams Guide Plate GM LS1 3/8 Flat
Brand: COMP Cams
Price: 9.95 USD
Availability: InStock

COMP Cams Guide Plate GM LS1 3/8 Flat

$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 flat guide plate for GM LS engines with 3/8" pushrods and 8mm studs. Hardened steel for durability.

Key Features

Fits 49+ vehicle make/model combinations.
Designed for 3/8" diameter pushrods and 8mm rocker studs.
Flat, one-piece guide plate design.
Hardened steel construction with a black oxide finish for durability.
Features exact stud placement and rounded contact points for smooth pushrod guidance.
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

When you're building up a GM LS engine, especially one destined for performance use, you'll want to make sure your valvetrain components are properly supported. What you get here is a single, flat, one-piece guide plate from COMP Cams, designed specifically for 3/8-inch diameter pushrods and 8mm rocker studs. This plate is essential for LS engines that use "cathedral port" cylinder heads, like those found in many LS1 and LS6 applications.

This guide plate is made from hardened steel and features a black oxide finish for added durability. It's built to handle the increased spring pressures and higher lift camshafts common in performance builds. The design ensures exact stud placement and has rounded contact points to guide the pushrods smoothly, preventing wear and ensuring consistent valvetrain operation. COMP Cams used stereo lithography techniques to ensure an accurate fit for these plates.

This guide plate is a solid option for a wide range of GM vehicles, including models like the Chevrolet Camaro, Corvette, and Silverado. It's a necessary component when rebuilding the top end of your LS engine for improved performance.