60# Valve Spring Kit Cummins 5.9 12-valve
- Also used as heavy-duty intake valve springs for high RPM or performance camshaft applicaitons
- Replacement exhaust valve springs to allow for 60psi of brake pressure on 12-valve engines
- 1996-1998 "California" spec engines with EGR require 1030030 Kit
Chevy Duramax, Chevy 6.5L, and Dodge Cummins Performance Upgrades. Copyright © 2016 Heath Diesel Inc. All rights reserved.