4g63t head on g63b bottom end?

[Dented Dent]

I was just about to reply to your private message, sorry. The blocks(as far as I or anyone else knows) are exactly the same, except the g63b does not have oil squirters for the pistons, but the block can be tapped and they can be installed no problem. Only other differences(not related to the block) are the piston are setup for n/a, which means the compression ratio is higher than the 4g63 pistons and they are cast and not forged, so not as reliable with the heats and pressures of a turbo motor. Let us know if you have any other questions.

But will the 4g63t valves clear the g63b pistons?

[dash]

another good one http://forums.austarion.com/viewtopic.php?f=13&t=11874

[dash]

they go thru all that too keep their starion wide block tho
for the narrow block, the beaten path seem like ur best bet