Originally Posted by
lzylst
The Vitara pistons are used quite a bit, but are sized a smidge small. Get ready for lots of piston slap. Otherwise it seems like you are using some quality parts. Have you thought of trying a 60-1? Kinda of a old turbo compared to today's technology but would probably get you close to your goal of usable power over more of the rpm range.
This is why alot of people go with oversized vitara pistons, they can bore the block to the exact size thus meaning no pistons slap because they wont be in a stock bore block with a slightly smaller piston than what the walls actually are.