ok im rebuild a b18a1. anyways I have a b20z that is toast, but I do know the water pump and oil pump are good. anyways are there parts off the b20z motor that are better than the b18, I've heard the oil pumps are better, but not sure. also is there anything else? any help would be appreciated....(o yea im not using the pistons, rods, or head so ignore that stuff)

 

bump