Got one that has me scatchin my head.

Do we actually need adjustable rocker arms if we have hydraulic lifters?

If we get the pushrod length about right it all should be fine?

I have a LS6 engine with LS6 heads, but i just bought GMPP heads that are 0.055" milled with 0.040" gaskets. So i have to adjust for a drop of 0.072" (0.055"+0.017") but the LS6 valve are also 0.6mm taller than LS1 so from the usual 7.400" i need to remove and additional 0.0236".