Give it an hour or so and Kid Icarus-- Er, MGD -- Er, Sasquatch77 -- Er, community EB troll/hater will give you a thorough rundown of why he's an idiot.
The GT and Raptor engines are obviously both 3.5L EBs, but there are still a lot of differences that separate them from being the same engine with a different tune (which is commonly discussed).
I'm by no means an expert in engines, so I will leave that information to those who are better informed than I.