Originally Posted by leathermang

Where did you get that idea ?

If you look at this in the bigger picture... you could transplant a NA 617 into your car... still not fun due to the oil filter placement problem.... but get that twenty horses in a form which you could expect very long life from it....
One type of thing you are overlooking ... is that the size of the bearings on things like the rod to crank were increased ....and the assumption that you can watch the EGT close enough to keep from melting the top of a piston... unnecessarily puts your entire project at risk after a lot of work and money is invested...
I do not care what you do with your car... it is your car... so these comments are for others in case they wonder why I think it is a bad idea...