I know this engine is old, but im looking to rebuild mine. I heard that the 35 plus 21 novarossi piston/sleeve/conrod kit can fit, can someone just confirm this please. Also if its so can you give me the part number for the correct nova rossi kit..

Thanks much!!

I tried it because I couldn't find a XRS piston and liner but it didn't work. Don't waste your time.

I'm not real familiar with how Max relates to base Nova's but if it's an older one I would think an R1WC or similar P/S would work.

use the one from the mega mf black case !!!!! that works

Don't waste time on MAX.

That will happen to any motor in the right kind of crash.

Exactly!

diddo to that !!!!

I think the XRS is based on the Novarossi 21-3. It came out in between the 321P and the 35+21. Fast but doesn't last very long(microcast piston). Nova stopped making it I think. Someone please correct me if I'm wrong.