These springs have been used to idle engine, run on a dyno 4 times and then pulled off because of cam change.
* 1.460" o.d. double spring with damper
* 125 lbs. @ 1.780" installed height
* 376 lbs. @ 1.180" open
* 420 lbs. per inch rate
* .600" maximum valve lift
* Valve Spring Retainers 10 degree x 1.50" o.d. chromoly steel
* 10 degree locks
New these are 194.95
$100.00
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