Originally Posted by sogtx
Fyi pushrod lengths were perfect as was ..
no changes were necessary
Both landed on stems exactly in same spot!

Thanks for letting us know the Crower and Lunati have the same lifter seat height.
Can you measure your old ones and tell us what the actual numbers are? Body height, seat depth, etc.

My notes say, Crower 66233-16 or with H seat height 1.34”, 122g, 0.812” bearing. With pushrod oiling. But I don't know how they define "seat height"
The Comp lifters seem to define it as put a 5/16 ball in the seat and measure from the top of the ball to the bottom of the lifter.


1993 Daytona, 5.50 at 130mph (1/8) 1.19 sixty ft (PG). Link to 572 B1 - Part 1