Mighty Whitey

when milling the heads down that far, At what point does intake mis-alignment come in to play?

I've got an lq4 shortblock and a new set of 243's I'm wanting to mill the hell out for the compression jump. Fly cutting is no big deal, a friend gas the tool, I just don't want to have intake sealing/alignment issues

blsnelling

iTrader: (4)

I was advised to mill .035 instead of .050 to prevent problems like alignment issues.

OutToWinPAHC

iTrader: (10)

The machine shop can mill the intake side so the intake manifold sits evenly.

OutToWinPAHC

iTrader: (10)

How much would need to be milled from 243 LS6 heads to yield a 61.5cc chamber? I think I may do this and switch cams.

blsnelling

iTrader: (4)

I believe that would be .021". It takes .007 to loose 1cc from what I've read.