[BrianG]

Originally Posted by 67 chevelle

Excellent choices , the l31 is a great engine
Ill add this gm engine with excellent low end torque ,would be my choice for a big tire truck like yours , http://www.jegs.com/i/Chevrolet-Perf...32529/10002/-1

I had considered that 383 from GM except I was looking for something with a little more compression I guess. It seems like the two they offer are on the complete opposite ends of the spectrum. A basically stockish replacement that runs on pump gas (boring) or the ultimate high performance unit.

I wonder if the compression could be raised on that motor by changing out the head gaskets... but that seems silly on an assembled engine.