Ok that mine
ILikeMy240sx wrote:SR - all aluminum. Alum block and Alum head
KA- Iron block and Alum head
SR is VERY VERY sensitive to any kind of oil starvation. It is a very tight tolerance motor so any starvation in oil and you will end up with spun bearings and sorched cams, etc etc
does sound like you need lots of searching to do.
ok you are you satisfied of your sr 20 at this state of your modification . And the interne are like piston ring , piston ,crank ,piston rod are ok at this stage of modification . but question like that how much hp / torque do you got ??