UD Harold designed both the comp xe line and the MOPAR Lunati Voodoo line
here" what he says
"The Mopar VooDoos are true Chrysler profiles, designed for the .904" tappets. "
"That 213/.454" profile is about 5 or 6 degrees fatter at .200 than the Chevrolet one."
5 or 6 degrees at 200 is huge- you can feel it
The comp xe lobes were designed after General Kenetics and before Ultradyne and the Lunati Voodoo Mopar hydraulic lobes after Ultradyne
anyone think that Harold did not learn anything over the years. The Lunati lobes are more modern than the xe lobes- which are much more modern than the H (270h) lobes
Simple as that
from another thread Harold gives more on the "213/454 profile he mentions above
"60400 250/256@ seat 208/
[email protected] .454"/.454" valve lift, 112 LSA
60401 256/262 213/220 .454'/.475" 112 LSA."
"The 60401 makes about 19" of vacuum in a 360, so you should have plenty in a 408."
UDHarold"
Stan Weiss adds FYI
" for a flat tappet max velocity is around
.842" - 0.00717 inch / deg
.875" - 0.00746 inch / deg
.904" - 0.00771 inch / deg"
Stan
