I have a question for you guys. I have an old novarossi plus 21-5 that had a rear bearing let go on me awhile back. Lets just say the piston and head button don't look new anymore lol. However the crankshaft, crank case, and carb are all fine still. I have been thinking about buying a go tech 5 port piston, sleeve, rod, and head button for it, as well as a set of tko ceramic bearings. My question is would the go tech stuff slide right into the nova case and crank? I checked the bore and stroke and it is the same with the go and the nova. I can get all of the parts for around $150( alot cheaper than the nova parts) so i think it is worth it. My thought is that with the go p/s/r and the nice nova 21-5 crank the motor should produce a nice smooth, powerful powerband. I am just wondering if all the parts would lign up? I believe I heard somewhere that the go was actually modeled off of the nova, atleast the P/S/R was. Brian do you have any idea as to wether it would work? I just thought it would be a fun thing to try with a motor that would have been a paperweight. Thanks for any help.