I ordered the water pump conversion the engine I'm going to put in my 1946 Chevrolet truck. I have read where people have drill the end of there crankshaft for a small block bolt. But I am planning on using a balancer off of a 216 with the hand crank teeth so I guess that means I can't use a balancer bolt? Also it says to use sealer on the adapter to block surface what kind of sealer is used red, black or grey?