I was leaning towards a setup along the lines of what this member was plannig.
compression ~ 10:1
voodoo 60212 hydraulic roller
single plane mpfi manifold
stock gm crank stuff but bal
454 combo hp/tq estimate
I would most likely add some decent aftermarket rods and might go a little bigger on the cam. A BBC chevelle is supposed to lope
Yes I do know more cam is not always better. I have read plenty of the 496"+ topic with hydraulic rollers but the little motors do not get as much discussion. My ideal goal would be 550-600 hp which maybe stretching it for a hydraulic roller 454.
I found a few motors like what you have no intake/ecu for $800 in a quick search. I had wanted to run efi most likely a Holley Commander but the verdict is out on that.
The LT1 T56 hydraulics should not be a big deal as plenty of the LS1 swap guys are converting over. I had really thought about a LSx based motor but nothing looks like a BBC. The LS1 and LT1 master cylinders are very close in design and using a factory style flywheel clutch would make for a clean easy swap.
I have posted up on the McLeod forum asking about clutches so I may decide to go with a 2 piece rear main, since I can not directly swap in an entire LT1 clutch system. My last project ran a McLeod twin disk which I loved and handled ~525 flywheel hp in a C5 without a problem. We'll see.
The plan for the car is to take it in more of the power-touring/nice cruiser direction. I do not plan to track the car but handle, brake, and cruise like a newer fbody. It may go down the dragstrip a few times but nothing serious.