Not too sure 'bout that one. Phord has the domestic 4-banger aftermarket with the 2000/2300 engines. Roundy round racers love 'em.
The only thing I remember was a SD verion of the Iron Duke from Pontiac. 175" I think it was. If you dig deep enough you might find a crankshaft in usable shape. You'll need some serious headwork done to take advantage of the extra cubes, or pay through the nose for a SD Pontiac head. If you can find one for sale.