I'm asking this question on behalf of Jmanmartin as he's probably hard at work trying to get his civic back on the road! Basically he has an Ek4 vti, he blew up the engine so fitted a B18c4 from an Mb6, then he blew that up, so he's just bought a B16b Ek9 lump, dropped out the 'c4 and bolted in...