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Is there a special way of modifying 7A head to fit 3B water manifold ? I'm doing the conversion by my self and I'm wondering is there a special way to do it or just normal drilling method will work.
I have 3B water manifold and will take measures from there and make holes for water and the screws.
I think its pretty straight forward Albert, someone posted links on how to do it a while ago, Javad in the US used a 7a head on his motor i beleive. Try doing a search.
I managed by pasting the link and cutting off the gallery. So it read s90.5cyl.net. Click on the gallery link. The water manifold machining is near the bottom.
Some interesting stuff. Unfortunately can only look at the pics!
7A heads are alot cheaper and easier to source than ABY/ADU/3B heads. As for Cams the 7A exhaust cam has higher lift and duration which is good for increased power towards mid and top range.
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