A Y-block is the first OHV V8 that Ford built. Passenger engines were 239, 256 272, 292, and 312 displacement. The block extends down below the center line of the crank. When viewed without accessories it resembles a Y more than a V. The extra block webbing made for a very strong bottom end.

Last edited by crenwelge; 10/07/2009 3:06 AM.