yeah...i meant that i needed pistons to fit an engine bored .020 over, and its going to be an N/A engine, cuz i dont think i should put a turbo on it cuz they are too expensive... so i need some pistons that will fit a 1.8 bored .020....and im goin to sell my new (in-the-box) type r pistons

 

what size would fit an engine bored .020....like
81.50 mm???? and where can i get a good pair for a good price

 

ok, found out what im goin to do, selling my rods and new itr pistons, and i am buying h-beam eagle rods w/arp bolts, and srp floating pin pistons 81.50 mm....is this a good idea?

 

I don't know why you would spend all that money on forged internals to be N/A, unless you were going to get some real lightweight titanium rods and real high comp pistons.

 

there's nothing wrong with having a stout bottom end if ya dont mind spending the extra money! lol

 

I'd run CP's or wiseco's instead of SRP. From a quality standpoint I feel they are a much better piston than SRP. Both CP's and wiseco's run a tigheter piston to wall so you will also get less piston slap on cold start.

 

The SRP's can run a tighter cylinder wall because they are made of 4032 alloy with a higher silicon content. I'm pretty sure Wiseco and CP both use 2618 alloy which has a lower silicon content and higher expansion rate which requires looser tolerances. From a quality standpoint the CP's aren't that much better than the SRP's, the valve reliefs aren't as thick as they could be. The 2618 alloy does make the Wiseco and CP about 15-17% stronger than the SRPs though, but unless you have a really high hp build, it's nothing to worry about.

 

hehe, well i might get some nippon ctr 81.50 13.1 ratio pistons instead of the srp's, i will just settle with those i guess, what do you think

 

Those are press fit pistons so just skip the Eagle rods if you go that route. Also ctr and itr pistons go on rods that are narrower than b18b, b16s so the piston or rod has to be worked for clearance on the small end. If not mistaken, it's about a milimeter on both sides that has to come off. Machine shop should be able to take care of it.

 

eagle rods wont work on nippon ctr pistons? either way i still need some newer rods than the ones i have, one of them are bad. should i get the nippons ctr pistons or should i get better ones....as far as horsepower and durability