A GT40 head question

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The GT 40 irons should fit every thing with no problems.

The GT40P heads need headers that allow sparkplug clearance.

Make sure you know what size head bolts are needed. Some GT40 irons were made for 302 7/16 in headbolts and some for 351w 1/2 in.

I don't have experience with the aluminum ones, but they should also fit.