Thanks for that. I know that the 3.0 Corvair conversions use VW cylinders but they have to have mods done to the holes to make the alignment work. I never bothered to look at the heads to see what the difference was.Head stud patern on the Corvair is 80mm x 84mm. The VW is 75 x 81.
Right. And they are still making brand new parts for the VW Type 1, no need to cut anything if you want 75 HP. Still, apparently the idea of cutting up Corvair cases and heads has fans for various reasons. I'm just wondering if getting old parts to modify is easy and cheap.The big Corvair is 3300 cc. 4 cylinders is 2/3 or 2200 cc. So it would make the same hp as a 2180 cc VW.