Katech LT4 Exhaust Valve Spring Replacement Seat

Katech LT4 Exhaust Valve Spring Replacement Seat

Replacement Spring Seat for LT4 Exhaust Valves with Compatible PSI Valve Springs.

The Katech LT4 Exhaust Valve Spring Replacement Seat is designed for the exhaust side of LT4 cylinder heads using PSI-LS1511 or PSI-LS1516 valve springs. It provides an individual service component for a compatible exhaust valvetrain assembly.

Features & Benefits

• Designed for LT4 Exhaust Valve Applications
• Individual Replacement Component for Valvetrain Service
• Proudly Engineered and Manufactured by Katech Engineering in Clinton Township, Michigan, USA

Technical Specifications

• Product Type: Replacement Valve Spring Seat
• Engine Application: LT4 Cylinder Heads
• Valve Position: Exhaust
• Spring Compatibility: PSI-LS1511 and PSI-LS1516 Valve Springs

What's Included

• One Replacement Exhaust Valve Spring Seat — Sold Individually

Valve springs, valve seals, retainers, and valve locks are not included.

Installation Quantity: Eight seats are required for a complete compatible LT4 exhaust valve installation.

Fitment & Installation Notes

Confirm that the replacement matches the existing cylinder head and exhaust valvetrain configuration before installation.

• Verify Valve Guide Boss and Spring Seat Dimensions
• Confirm Valve Seal Fit and Clearance
• Check Spring Installed Height and Spring Pressures
• Verify Coil Bind Clearance at Maximum Valve Lift
• Check Retainer-to-Seal and Retainer-to-Guide Clearance
• Inspect Related Valvetrain Components During Replacement

Why Choose Katech

The Katech LT4 Exhaust Valve Spring Replacement Seat supports servicing a compatible exhaust-side spring package without purchasing a complete set. Katech Technical Sales can help confirm the correct seat for your cylinder head configuration.

For LT4 exhaust spring seat compatibility questions, contact Katech Technical Sales at 586-791-4120.