105 psi seat pressure at 1.850"
275 at 1.350"
1.300 coil bind
.500-.550 max lift depending on installed height


Matching  steel hardened retainers included for 7 degree locks with 11/32 valve stem. Retainers can be changed to 3/8 if need be for a $58.00 additional charge. 

Great for both big block and small block engines with flat tappet cams to .500 lift, or  you can run the .520 lift L78 396 or LS6 450hp cam if installed at 1.870".