Chrysler Sunbeam
As 65 Val said it's pretty tight in there. I read that the demise of the Sunbeam Tiger was Chrysler bought out Sunbeam and had to do warranty work on the 289 Ford motors in them. They couldn't fit a 273 in one so they did away with the Tiger. But, where ther's a will, and a cutting torch, there's a way. With a lot of work someone may have got a 383 in there, it just wasn't a factory job, Joe.