around 13 or 14 all depends on how good a driver u are if ur gonna rebuild it there is a thing on ebay its vitara pistons ,eagle rods ,all new bearing ,and gaskets ,and seals, and studs. its like 500 or 550 then once u get sick off only 200 whp u can go to 300 or 350. ull get bored of a 14 or...