t57b18

i just bought a ls vtec motor and it has a little pistion rock side to side about .006 to much and it also has a spun rod bearing i pick it up cheap. question is i have a b18a bottom end stock polished crank and eagle h beams with srp .20 bore 9.2.1 compression insted of useing the old ls head im going to us the gsr head do i have to get different pistions or how to check please help

45psi

i assume the srp's are for the b18. if they are not intalled already you'll have to bore out for fitment. ls pistons will work

t57b18

yes they are for a ls block it already put together my only concer is the valve relife the cut for the ls valves and gsr valves are bigger thanks fopr the help