What size piston do I need

[Colbyfeltersnat]

My cylinder measures 67.02mm what size piston should I order and also what would be a good piston to go with.

Thanks

 

[Wifesblaster]

You are better off taking the cylinder to a shop and have it bored to the next size (if it's not tore up to bad.) you should never just order a piston and throw it in there. There is to many variables when doing that. All pistons differ in size a little bit, and the cylinder could be tapered or out of round. Would be a good time to think about porting and head mod too.

 

[Colbyfeltersnat]

Even I the cylinder is in like perfect condition no nics,scratches or scuffs

 

[Blastinit]

You are better off taking the cylinder to a shop and have it bored to the next size (if it's not tore up to bad.) you should never just order a piston and throw it in there. There is to many variables when doing that. All pistons differ in size a little bit, and the cylinder could be tapered or out of round. Would be a good time to think about porting and head mod too.

^^^ What he said ^^^

 

[Colbyfeltersnat]

Thanks guys, next step bore it out

 

[Larry's Shee]

Actually it needs to be measured first. What is the reason for a new piston?

IF the cylinder was less than half the wear limit you might get away with just a new piston, but then again you'll have $150 in piston and gaskets, another $50 for bore and it will be like a new engine.