Industrial Injection Valve Springs 5.9 Cummins

The Industrial Injection 150LB Performance Valve Springs are a must have for people who are pushing over 45psi boost and/or 3200rpm.
These performance valve springs will help prevent valve float, there for allowing your truck to run more efficiently and make more power safely.
Features:
150LB Seat Pressure
Good up to 4000rpm
Good up to 60psi Boost
Comes with both Intake and Exhaust Valve Springs
Fits Dodge Cummins 1989-1998 12 Valve, and also the 4BT Cummins