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.
Chevrolet small-block engine
Crankshafts used with the 305 had the same casting number as the 350 with one discernable difference - the 305 crank is lighter in weight to compensate for engine balancing. (The counterweights are smaller, which makes it unsuitable for use in a 350 where metal would have to be welded back on.) The medium journal 305, like its big-brother 350, would be further developed in the 1990s, although with a reduced stroke (using connecting rods), into the "Generation II SBC" GM LT-Series engine L99 263.