FITMENT
- 1985–1988 Chevrolet Corvette C4 (5.7L 350 TPI).
- 1985–1988 Chevrolet Camaro IROC-Z / Z28 (5.0L 305 TPI & 5.7L 350 TPI).
- 1985–1988 Pontiac Firebird Trans Am / GTA (5.0L 305 TPI & 5.7L 350 TPI).
DESCRIPTION
Product Overview
- Sticking EGR valves and brittle gaskets cause persistent vacuum leaks, rough idles, and erratic performance on 1980s 305 and 350 TPI Corvettes, Camaros, and Firebirds. Decades of exhaust heat create carbon buildup that bakes factory valves open, drawing hot exhaust gases and unmetered air straight into your intake manifold.
- Clean up your engine bay and restore proper manifold vacuum with this 305/350 TPI EGR Block-Off Plate Package. Designed to bolt directly onto the stock TPI intake manifold, this heavy-duty plate caps open EGR ports, prevents power-robbing vacuum leaks, and helps keep your classic Small Block Chevy running clean and smooth.
Key Features
- Precision Billet Aluminum: CNC-machined from high-strength aluminum to withstand extreme engine bay heat and vibration.
- Leak-Free Engine Performance: Securely seals unused TPI EGR ports to eliminate vacuum leaks, rough idle, and surging.
- Cleaner Intake Airflow: Blocks hot exhaust gases from entering the intake manifold for maximum engine efficiency.
- Sleek Engine Bay: Streamlines your build by removing bulky, unnecessary EGR components for a clean look.
FAQ
Q: Where does this EGR delete kit install?
A: It mounts directly onto the intake manifold at the stock EGR valve and runner locations, completely sealing off the exposed ports once the factory hardware is removed.
Q: What issues does a failing TPI EGR valve cause, and how does this kit help?
A: A sticking or leaking EGR valve often leads to erratic idling, severe engine surging, poor throttle response, and vacuum leaks. Installing this block-off kit permanently seals the unused passages to eliminate those symptoms.
Q: Do I need to remove the intake manifold for installation?
A: No. On most applications, the plates and plugs bolt directly to the factory mounting points without removing the entire intake manifold, though clearance around the rear of the engine bay may vary by vehicle.
Q: Will I need additional gaskets or hardware to complete the install?
A: No, this is a complete drop-in kit. It includes all required CNC-machined plates, plug fittings, high-temperature gaskets, and stainless steel bolts needed for a leak-free installation right out of the box.
