OEM piston grade sizes?
ok.......... i am in the middle of rebuilding an engine pretty much mod for mod with what rob is doing.
first block i had piston slap and made the cly's unusable without boring it out.
second block had a melted piston and again jacked up the cly wall.
third AND HOPEFULLY LAST block i currently have is old.............id say 200+k miles. that being said it has some ring groves. i am trying to keep my build costs as low as possible and i remember someone at work telling me "if you have ring grooves but the walls look ok you can cut the ring, ball hone the cyl, then get slightly over sizes pistons to take up the slop.
all 4 cyl are pretty uniform and clean save the ring at the top. im trying to figure out what the differance in size in on OEM pistons. they come in 5 grade sizes as well as over sized if i can find what the differance in size is i may be able to simply use a grade 5 sr16ve piston.
first block i had piston slap and made the cly's unusable without boring it out.
second block had a melted piston and again jacked up the cly wall.
third AND HOPEFULLY LAST block i currently have is old.............id say 200+k miles. that being said it has some ring groves. i am trying to keep my build costs as low as possible and i remember someone at work telling me "if you have ring grooves but the walls look ok you can cut the ring, ball hone the cyl, then get slightly over sizes pistons to take up the slop.
all 4 cyl are pretty uniform and clean save the ring at the top. im trying to figure out what the differance in size in on OEM pistons. they come in 5 grade sizes as well as over sized if i can find what the differance in size is i may be able to simply use a grade 5 sr16ve piston.