98-18 Cummins 24v Hamilton 103# Valve Spring Kit Hats Order the model recommended for

Order the model recommended for your axle

hot shot haulers)

Programmable parameters for fine tuning

Clutch - O/D Roller(Steel)

Fits all 2011 - 2019 Ford 6

98-18 Cummins 24v Hamilton 103# Valve Spring Kit Hats Order the model recommended forDescription Stock 24v springs have 78 82lbs of seat pressure at 1. 380. If you are over 35psi(boost or drive pressure), stock springs do not fully control the valvetrain. Intake and exhaust valves can be blown open by boost and exhaust drive pressure which allows reversion. Reversion can hurt your power potential by allowing exhaust gasses to enter the cylinder on the intake stroke. Inert gasses in the exhaust, when re introduced into the cylinder