Yes, as long as the piston you've got out of the engine is the same size as the cylinder you're measuring. If one engine has a different bore size than the other, you might have a little difficulty measuring the end gaps. Once you measure the gap at the top, you'll need to push the ring down 2-3 inches to get the bottom gap measurement. What you're doing is measuring the difference in circumference of the cylinder walls at different levels and dividing the difference by Pi. (3.14, actually, but 3 is close enough). "Circumference = Pi X Diameter"- - - - -basic high school plane geometry with a practical application! Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
