Chevrolet small-block engine
In 1992, GM created a new-generation small-block engine called the "LT1 350", not to be confused with the high-output Generation I LT-1 of the 1970s. It displaced , and was a 2-valve pushrod design. The LT1 used a reverse-flow cooling system which cooled the cylinder heads first, maintaining lower combustion chamber temperatures and allowing the engine to run at a higher compression than its immediate predecessors.
Lincoln Y-block V8 engine
A useful comparison is the Oldsmobile V8 engine, which came in both small-block and big-block versions from 1965-1976. Both blocks have a bore spacing of , almost exactly the same as the Lincoln Y-block, but differ in deck height, with the small-block's being and the big-block's . By this measure the Lincoln Y-block has a larger engine block than the Oldsmobile "big-block." In comparison, the Ford FE engine has the same bore spacing but a deck height of .