[iluv69s]

there are motion experts here, which I am not..that being said, I beleve what you have is exactly what you say you have. a 512 block, 077 heads, etc. The Motion part of the equation is really cool if true, but proving it without having the original paperwork from the car it came out of will be rather difficult. Still a really cool motor for a street car. And probably a valuable block for someone looking for a dated CE block. I say find a nice late 60's early 70's chevy and build a car around it!!!