I have seen several flatheads mentioned as "244"s, instead of 239's. What makes it a 244?

I ask, because the motor I just bought is a 244. I have seen 244's listed as being bored .020 and .030 over...so it seems like it's not just boring that increases it. Wouldn't that be stroke?

Thanks in advance!

R

 

It is just the bore - see my post in the 48-60 forum for details.

Increase in stroke is usually noted in fractions.