go here http://compcams.com/Base/pdf/lobesection.pdf


CAMSHAFT TYPE @ .006 @ .050 @ .200 106° 110° 1.5 1.6 1.7
XE-R for LS1
Rated Duration @
.006" Tappet Lift
LS1 55mm Journal
3720 269 220 143 0.342 .062 .049 .513 .547 .581
3721 271 222 144 0.342 .065 .052 .513 .547 .581