the small block fllex plate will not work or the pulleys the clutch .fan may . the water pump has to work with the pulleys you use if old v belt then long stye pump than that would be the pump you would use or if serpentine than the pump for this pump is not the same pump as the v belt why would you not run the stock 454 damper ? the valve may have stuck in the guids rust not fitted to the guild . i do not know much on that cam . roller dist gear is #10456413 melonized steel gear Gm .you must run the right year flex plate for this 454 they are not alll the same weight and a 454 is externally balanced you can run the better engine mounts i would