Fastburn

iTrader: (18)

Ok, so ive got this engine, its a nova sx21 sports. from what ive read, its a 3 port engine. What I was wondering is if I could use a piston and sleeve out of an evo or another sx21 based engine.
I do have another engine, but for a back up I was wondering if I could do this.
Anyone with some good info on this, it would be appreciated.

thanks
Nate