I'm all about being the Guinea Pig at times but this isn't my cup of tea. I appreciate the whole naturally Aspirated thing but one thing is for sure...
With all the cars and even more bikes I've owned.... I've had very few positive experiences with digging into the block. I've spun bearings, overheating issues through the gazzoo, thrown valves, etc etc. My neighbors son built a newer model camaro, spent $16K on an engine build and what a pc of sh#$
I'm sure if anyone can do it, GTM can be trusted but I'm much more of a bolt on kind of guy. These things are bulletproof from the factory, pulling it apart to pop in bigger pistons takes a bigger man then me. Owning the pc of crap Ferrari with only 1200 miles makes me even more paranoid, I'm still paying for the repairs on that thing and I sold it nearly a year ago
Crazy how cheap it is though...would be interesting.