Originally Posted by
JP126
The only thing about the .21 engine is will it fit in the .18 mounting space. I read up on the 3.3 and it’s a .20 engine that fits .18 engine mounts.
Also, why can I only reply to 5 posts in 24 hours? Lol
The traxxas 3.3, Hpi g3.0, and all the O.S. engines I mentioned have the standard small block mount screw spacing. The .21tm is a direct bolt in for the traxxas engines. And the 3.3 is in my bullet at the moment. So theyll all fit.
The .21TM is technically a "mid block" which is an engine with standard small block mounting lugs and a short length crankcase but has a .21 or larger displacement. The 21tm is going to be way overkill though when I consider how much my own bullet breaks as-is.