Fred - you can't 1242 it if that's what you were thinking about - the pistons ain't transferrable between 1108 and 1242.
You could run it as a low boost 1242, unless you can find some low comp pistons or get a spacer bonded onto the block...
You could run it as a low boost 1242, unless you can find some low comp pistons or get a spacer bonded onto the block...