Chevy Small Block EGR Block-Off Plate Gasket

• Fiber gasket seals EGR block-off plate on Chevy Small Block Gen. I V8

• Fits 262–400 CID engines, 1975–1995 GM EGR-equipped vehicles

• Sold individually; replace whenever the plate is disturbed during service

• Not compatible with Gen. II LT-based small block or 90-degree V6 engines

This TSP Chevy Small Block EGR Block-Off Plate Gasket is a fiber gasket used to seal an EGR block-off plate on the Chevrolet small block V8 Gen. I, spanning 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 CID. It's a service item for EGR removal or delete projects where the factory EGR passage is being blocked off at the intake.

Sold individually, this gasket should be replaced any time the block-off plate or intake is disturbed during service. Before installing, confirm port shape, bolt-hole alignment, and surface condition, and follow the recommended tightening sequence for a proper seal.

This gasket is commonly used in street performance builds, restoration projects, and custom engine assemblies where an EGR block-off plate is installed on a Chevy small block Gen. I engine.

Material & Fit
Fiber construction supports compression and sealing at the intake flange where the EGR block-off plate mounts.

Installation
Sold individually. Confirm port shape, bolt-hole alignment, and surface condition before installing, and replace this gasket any time the block-off plate is disturbed during service, following the recommended tightening sequence.

What is this gasket used for?
This gasket seals an EGR block-off plate to the intake manifold on Chevrolet Gen I Small Block V8 engines during an EGR delete or removal, helping prevent vacuum leaks and exhaust gas leaks.

Is it sold individually or as a set?
This gasket is sold individually.

What material is it made from?
This gasket is manufactured from durable fiber material designed to provide a reliable seal between the EGR block-off plate and the intake manifold.

Do I need this gasket if I'm not doing a full EGR delete?
No. This gasket is intended specifically for use with an EGR block-off plate. If your EGR system remains installed and operational, this is not the correct gasket for your application.

Does this fit the Gen II LT-based small block or the 90° V6?
No. This gasket is designed specifically for Chevrolet Gen I Small Block V8 engines (262–400 CID) and is not compatible with Gen II LT-based small blocks or GM 90-degree V6 engines.

Should I replace this gasket every time I remove the block-off plate?
Yes. It is recommended to replace the gasket whenever the EGR block-off plate is removed or disturbed during service to help ensure a proper, leak-free seal upon reassembly.