Re: Why would anyone build a 377?
I did that for somebody once, for a dirt track car actually. Couldn't talk him out of it.
He basically spent extra monay to take power away from his 400. He figured that out when he got beat consistently by 400s. He ESPECIALLY got beat coming out of the corner. Running the high line to keep the RPMs up wasn't always the fast way around, and he would get beat coming off, every time. He told me later that he regretted not listening when I warned him that would happen. Common sense should have told him that 7% less power, at maybe 200 RPM higher, doesn't somehow make a winner.
The only time I can see that it makes sense is if you are CID-limited by class rules or some similar circumstance. As far as I've been able to tell there is no advantage whatsoever otherwise. For most people who do that, they are merely using their own money as the weapon to shoot themselves in the foot with.