MANLEY NexTek 221442-16. 0.750" Max Valve Lift. Double Spring (No Damper). 1.200" Coil Bind. 0.812" I.D.
Manley 221440P-16 Polished NexTek Oval Drag Race Valve Springs 1.570" .700" Lift
Manley 221454P-16 Polished NexTek Drag Race Valve Springs 1.650" .850" Lift
Manley 221444P-16 Polished NexTek Oval Drag Race Valve Springs 1.610" .750" Lift
Manley 221424-16 NexTek Drag Race Double Valve Springs 1.640"OD, Used, Excellent
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