How to tell size of piston

[WheelieMan4]

Where can you look to find out what size the piston is...?? Like 85, 86, 87mm and such...does it say on the piston...and which is which? 85 is stock, 86 is 416, and 87 is 426?? thanks

[Chino886]

Originally posted by WheelieMan4
Where can you look to find out what size the piston is...?? Like 85, 86, 87mm and such...does it say on the piston...and which is which? 85 is stock, 86 is 416, and 87 is 426?? thanks

yeah, it is usually on the piston. I am pretty sure you are right on the sizes, I am still on stock bore (397cc) so I would know, I think 88mm is 440 though....

[greg_gorrell]

you can measure it with some dial calipers to find out the size and as for your other question, there was a post the other day about it, check that, im not too sure.

[greg_gorrell]

dial calipers?