Think i've found the info I was after.

http://johncalliesinc.com/pdf/MorelLifterDim_RollerToTopOfBallOnSeat.pdf

http://www.compcams.com/catalog/COMP2012/pdf/COMP_Catalog_2012_274-291.pdf

Looks like about 0.020" difference in pushrod height between the two so I should be ok with the pushrods I have.


1970 Road Runner 505 cid MCH CNC ported Stealth heads MP 528 camshaft 4 speed GV overdrive 11.98 @ 117 on street treads