helppp!

[blasty98]

i put a mic to my piston, theres no numbers on top it came out to 2.65" converted to 67.31mm. what size piston should i buy? X(

 

[fishnfool777]

Not sure what size that is, just bored mine .40 over which is a 67mm piston; 66mm is stock.

 

[Blaner]

thats a odd size, it should be a 67.25 or a 67.5 stock is 66, so it must be bored already. depending on how badly worn your cyl is determines your next bore.

 

[99LRDblaster]

i put a mic to my piston, theres no numbers on top it came out to 2.65" converted to 67.31mm. what size piston should i buy? X(

Your mic doesn't have a mm setting? :-/

At any rate, you measure the bore of the cylinder, then buy the oversized bore size piston. With the piston you have, I'm GUESSING it's a 67.50mm bore and you need to go up to a 67.75mm bore with a Wiseco piston. You will have to mic the cylinder though. At any rate, from there, it won't matter what piston you currently have as you will know what size to bore up to when you decide to get the next piston.