454 build up
Let me suggest an engine build. I will try and stay budget friendly, but this is a big block. Take the block, crank, rods to a machine shop to have them checked. If everything is good have the block bored .030, have the crank polished. The rods will have to be reconditioned. I hope they have the 7/16 rod bolts. Have them install new ARP bolts. Try and sell or trade your heads for a set of 781 oval port heads. Make sure the 781's haven't been butchered, you need 118 cc chambers so ask if they have been shaved. A good set of pistons is IC779 from Keith Black, they are forged. With 118cc heads they make 9.621 compression. For a camshaft I have 2 in mind. Both are mechanical flat tappet. 402ALUN .550/.570 lift and 238*/248* duration. Basic operating rpm range is 2400-6800. CRN 133841 .544/.567 lift and 238/248 duration. Basic operating rpm range 3000-6500. You will also have to purchase the solid lifters and spring set for the cam you decide on. I like the Lunati 402A2LUN. Intake Edelbrock 2904, Carburetor Speed Demon 850 1563010VE. The machine shop will also have to install springs on the heads. I am thinking of around 550 hp.