Michael Evans wrote:thanks for your input. Vw cool I'm not too sure what you mean by "why convert". What I mean by convert is anything that is a change from stock. It may not be technically correct to call it a conversion but it is a move away from what I currently have. I'm assuming that dropping in a T4 will give me more reliability, more power and less pollution which is all good. It may not be the purist thing to do but I'm hoping it will keep my car a daily driver. The question is can it be done with a minimum of fuss or is it a major modification job?
I meant... "Why replace your stock type engine with another, different, engine". The Type 1 engien is just fien and can be built to deliver terrific power and reliability for less than the cost of souping-up other engines and without chopping holes in things. I reckon the easiest thing for you is to retain a standard style (eg Type 1/3) engine case and build on that. After 200,000-ish km, and my brother's - and others - racing success over the last decade, a 1916 is my pick. Do you need a rear boot?