Maximum Valve Lift. 750". POLISHED To Reduce Friction Improve Fatigue Life And Minimize Load Loss. Open Pressure : 645 Lbs @ 1.300". Installed Pressure : 235 Lbs @ 2.050".
Manley 221440P-16 Polished NexTek Oval Drag Race Valve Springs 1.570" .700" Lift
Manley 221424-16 NexTek Series Drag Race Valve Springs 1.640" .880" Lift Set 16
Manley 221432-16 NexTek Series Drag Race Valve Springs 1.530" .630" Lift
Manley 221454-16 NexTek Dual Valve Springs
Manley 221425-16 NexTek Series Drag Race Valve Springs 1.640" .900" Lift Set 16
Manley 221443-16 NexTek Oval Drag Race Valve Springs 1.580" .730" Lift
