11-21-2007 The 50mm ducati TBs would work very well on a fully ported high flow head. Something that big would be wasted on a mostly stock head. But I’m not sure if they can be had at a price that would make then a good alternative to aftermarket stuff.
With the TR heads and ports in the middle, the problem become the runner needing a 20-30 degree turn to keep from running into each other in the REALLY narrow galley, so that is not without problems. I can see why the new engines went from a 60 degree V to a 65 degree V, every little bit helps.
You guys have given me many good alternatives and options, but I think I’m going to build to the original plan for no particularly good reasons.
My car is a 308QV. I bought it because it was a QV and I’d like it to stay a QV, it’s an ODC thing. If it were a 2v car, I am certain I would have abandoned the TR heads when I found the stud issue, but my ODC simply won’t let me.
The TR engine (no boxer because I need a 4v engine) looks like it would work and make a pretty straightforward conversion and I think it’s a great idea. In some ways I’m a little disappointed with myself for passing on it 5 or 6 years ago when it wouldn’t have meant a divorce. Someone will do it I’m sure and it will be a great car, but it won’t be my car.
My car will have a more original look to it then either the TR or 400 heads would allow and I like that….it that OCD again. It will also be more work, but that’s ok but it will be what I want when it’s done.
So back to the conversion.
I’m really thinking I’m going to weld the stud holes shut and re-drill. To do it I’ll have to cut though the side and open the holes up into the water jacket (once the liners are out). Then I can fill the whole thing with weld and put the holes where I want then and never think about a plug moving or anything else. It will be just like it came that way from the factory.
I’ll have to clean-up where the cylinder liners go, which has got me thinking about nikasil (sp?) vs iron options. I’ll probably stay iron for cost, but I would love to through in a set of 85mm 348 liners and have what would resemble a stroked F50 engine. If I could find 12 used liners cheap that I could rebuild (it’s about $100 each to have the nikasil re-done), that might be in the budget.
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