I'm using some W9 heads on a 59* R1 block (tall deck) the lifter bores have been brushed and prepped by Ray Barton. Phil Colman set the heads up to use them specifically for this block. The W9 heads obviously use an offset Rocker which I using a T&D rocker. I was told that with a 48* block to not use an offset lifter in combination with the offset rockers because the lifter will try and twist and come apart; is this the same for a 59* block?

If so what oil fed lifter would you suggest I use? My builder is WD with Crower so he likes to use them.

Jason