If you are over 35 PSI (boost or drive pressure) and 3,800 RPM, we suggest going with Hamilton Cams 103lb springs with heat treat and shot peen, for better longevity in extreme applications
Correct valve spring pressure is a very important piece of power production. Hamilton Cams springs at 103 lb spring pressure and 180 lb nose pressure are better than stock. At extreme applications stock springs can cause valve float and reversion.
Includes a spring compressor tool. Our Ohio Diesel Part Valve Spring Compressor Tool can compress all four springs at once with equal force making replacing valve springs, seals or retainers fast and easy. Best part is the tapered bore holes reduce the chance of dropping valve keepers down your engine.
Please contact customer service to ensure correct fitment on your truck: 216 408 6455**