I say to just get the new era BB mount kit and any big block. Axial .28's are cheap, so are any of the mach engines. Can't beat a bb in a revo. It's fun, cheap, and easy.
i have and used a go tech .21 3 port in my revo. i am actually about to put it back in. and a good thing about this motor it likes the header that comes with the bb kit. and it is a mild enough motor that it is easy on the drive train. i figured today after blowing the top of my engine off and it being number 3 with only a gallon and half on it i figured either traxxas is either going to do something about this issue or i am done with there engines. and maybe after the race season i am done with traxxas products period.
I have a 21 3port motor that came with my jato has roughly half a gallon on it with good compression but is way too fast for my 6 year old nephew to drive so I would trade you for your 3.3 if you wanna my email is [email protected] just lemme know thanks
I have a Picco .26 Maxx on my revo and i love it, lots of power and EASY to tune, i have had no serious issues with the engine its self just the stuff attached to it I:E: OWB, carb, glow plugs, ect