Your GT does not have a Boss 302 long block. Not going to argue with you. If its that important to you, spend $75 for a inspection camera and post the picture.
Theres really no way thats true, for multiple reasons... But if you really must prove it to yourself, go buy a borescope and look at the tops of your pistons.
https://www.harborfreight.com/digital-inspection-camera-61839.html
I hope you get it sold Terry. It's a nice machine. There's always a buyer and I'm sure you'll find one. I would love to own it, but two little girls say otherwise. Good luck
Also, people who haven't built a car or two, fail to understand how hard and expensive it is to finish that final 10% off...