Engine code 3b-7a-aan-aby-adu-rr

Comes with new base shims,OEM shims MUST be removed

These springs works with OEM retainers without any modifications

Max reccomended valve lift is 11.50mm

First load at 1.300 = 65Lbs,

1.200 = 95Lbs,

.850 = 200Lbs,

.750 = 230Lbs,

Coil Bind = .695