The Industrial Injection 150LB Performance Valve Springs are recommend 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 4500rpm
- Comes with both Intake and Exhaust Valves
- Fits Dodge Cummins 1989-1998 12 Valve, and also the 4BT Cummins
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