See the new pushrod Fleet engine by ford? 445 CID 4.220 bore and a 3.9 something stroke. It looks like a cross between a G3 and LS lol I know nobody cares but maybe Fiat will respond to this? But I'm thinking that the current G3 BGE casting would not support a big bore. It would need a total redesign. Crate engine starts at 7,800.00 IIRC