My area is devoid of any 273s, I've searched high and low. 318 or 360 seems like my best bet, the original block is rusted to the point of being unsalvageable. Regardless, though, my searches have been fruitless. Most I've found have had too high of prices for too high of miles. I'm waiting for the right one to come along, I'm focusing on suspension first, a lot of fabbing and using what I have.