4200xl how experienced do you need to be?

[TheBennyB]

Originally Posted by Efroeh

Just got a email back from them
The 1.5 version had 4 valves and the 2.0 has three valves. The technology is allowing to use less to make the same power. Very simple upgrade to reduce weight and components to keep it running the same and even better. 

Yea, all that is a little suspect since the version 1.0 had the 3 valve block as well. I just went through the same thing wondering why go from 3 to 4 to back to 3? Tang at eagle machines who makes them and sells them on alibaba told me the new 3 block is better, didn't give me any details as to why. I highly recommend the track motors upgrade from Soyland.

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