Manley Springs and retainers
 

I have a new set of Manley 221424-16 Nextek springs plus 4 new spares a set of used matching titanium retainers and keepers. These are as per Manleys site. NexTek Drag Race Valve Springs
1.640'' O.D.
0.860'' I.D.
647 lbs./in. Spring Rate
250 @ 2.000'' Installed
800 @ 1.150'' Open
0.880'' Max Valve Lift
1.070'' Coil Bind
Double Spring (No Damper)
These were going on our back up motor but went with a different spring. $300 plus shipping for all. Email me chevy21968@shaw.ca