You can occasionally find gt40 heads that have been worked for fairly cheap. Usually someone who built a motor and then wanted more power and eventually went to aftermarket aluminum heads. I know my machinist was recently sitting on a fresh pair of gt40's that he did for a customer and he didn't take them for some reason. He was wanting $500 or so. I've been meaning to see if he ever decided to come down on them. I'd like to have them for my 82gt, if I ever get around to starting that project.
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