In a couple of months I will be building different combinations of b-series engines. I have had alot of exprience working on engines but I've never taken a short block apart. I have done my homework and I want to finally tackle building a short block. My questions are: 1. I have a turbo exhaust mainfold for a b18b head. Will that turbo manifold bolt onto a b16,b18c head? I have heard that all b-series exhuast manifolds have the same bolt pattern. 2.I know if you use a GSR timing belt, you will have to use a GSR water pump and a B18B timing belt with a B18B water pump. Can I use a GSR timing belt and GSR water pump on a B18B engine with no Vtec head? What I mean is B18B head and B18B short block. Thanks in advance for your replys, your answers are important to me.