In order to mate the 1971 GTO hood to the 1956 Clipper hood, the GTO hood has to be cut on all 4 sides and the Clipper hood has to have a corresponding hole cut in the right place in the "middle" of it. There also has to be enough extra edge material on the Clipper hood to make a 3/8IN flange all the way around the inside of the hole.
My friend Roy drove over from SoCal to help with the project and spent 3 days and nights at my house (2 days of actual work). Here is Roy making an intial access hole with a pneumatic cutoff hand tool on the GTO hood after we had scribed an oversize pattern on it. We used an Eastwood metal pneumatic shear to do most of the linear cutting.
Center part of the GTO hood after being cut free. This was purposely done oversize, so after more trial fitting and measuring, we will cut it down to exact size. The outside sheet metal and underlying bracing is now scrap.
Three views of the cut down, but oversize GTO hood placed on the Clipper hood (we are getting close!):
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