Could probably be done and keep the compression friendly on the smaller engines. A little welding wouldn't be impossible to achieve it too but it starts getting costly.
Don't believe it's doable on a 571 though, can't imagine a heart shaped chamber that measures over 100cc for a pump gas compression ratio but maybe. Had to start with 87's anyway.
Not convinced they turned out inefficient either like so many preach, as the engine loved 34 degrees on the dyno and more killed power. They didn't need 36-38 or more like you often hear about. A lot of that I think also had to do with the quench and the custom piston design that Tony came up with.
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2019 Pontiac Heaven class winner
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