There is a 454 for sale locally. The guy says it a crate motor from the late 80's. Says it was an LS6 but built to LS7 specs. It has a steel crank, and some rectangular port aluminum heads from Chevy. The guy had the heavy duty connecting rods taken out and some light duty rods installed. I think they did this to make internal balancing easier. I am assuming it's internally balanced since the flex plate and balancer don't seem to be counter weighted. The motor has 12.5:1 compression not sure of the cam grind, the guy said the engine builder took out the LS7 cam and went for a differnet grind, not sure if more radical or less. The engine hasn't ever been run but turns over easy. No intake and no rocker arms. The guy is asking 3000 for the motor. What do you think about the price.
Seems high to me but not sure.