I did a little 21cc Echo today with that tool and had most everything cut off in about 2 minutes or less. A little touch up with the belt sander, some fine dressing with a Dremel and sanding drum, and it will be done. I've had the tool for a while; don't know why I didn't think of using it on engine conversions until today. The narrow blade fits into areas a sawsall can't. It doesn't use much air either, unlike a lot of air tools.

AV8TOR