ORIGINAL: RCIGN1
CY engines are very close, might work well...
I converted a 26 with a full circle crank..Boutht a short block, removed excess material from the case, put EI and a prop hub on it, didn't run any better than a Stock G26...The larger ones might...
What about weight, please correct me if I'm mistaken, they sell aluminum head cylinders & heads?! I bet one of those would be pretty light.