KC ..... here's a pretty complete list give or take a few things of the machine work done. The engine only had about 30k miles on a .030 rebuild when I bought it and the T400 for $350. The bores still had the cross hatch, no ridge and the pistons were perfect so I kept them.
The machine shop just kissed the bores with a Sunnen to give the new cast rings a better seat and I had them surface the block, took .015 to square it. Hone and surface was $160. The Cad uses castalloy rods so I bought new PEP forged cap screw rods with ARP 8740 bolts, even though they were new I ground and polished the beams and had them resized and shot peened, hung and aligned the pistons ....$140. The crank was standard but was in need of a 10-10, debur and polish ....$90.
Now the heads got some attention, I did a complete home port job, nothing crazy just opened them up a bit, straightened the intake wall as much as possible, raised the roof on the exhaust and smoothed out the short radius. I then bought stainless Pontiac 2.11/1.77 valves and had the machine shop open up the valve seats and install new guides. This took a while but it was worth it, valves and machine work were $460. They also did a complete balance job for $175.
The weak link on the big Cad is the valve train, they use wire spring clips to hold the rocker arm assembly together, any kind of sustained rpm could result in a BIG failure so I bought the Maximum Torque Specialties (MTS) non-adjustable shaft mounted rocker assembly ...$495 along with their #15 cam & kit, 228/235 dur. 535 lift. Also their single plane intake which I know isn't the "proper" part for the street but I just couldn't pass up the wow factor when I saw it. This is topped with a Quick Fuel Tech 780 Vac. sec. elec choke carb. Ignition is an MSD with Taylor wires. Lots of other small stuff but I hope this helps. I just wanted something different instead of a Chevy, I think I got it.