1992 – 1997

350 cubic inch 5.7L LT1

4.00″ bore x 3.48″ stroke, 5.70″ rod

LT1 specs

1994 – 1996

265 cubic inch 4.3L L99

3.74″ bore x 3.00″ stroke, 5.94″ rod

L99 specs

1996 – 1997

350 cubic inch 5.7L LT4

4.00″ bore x 3.48″ stroke, 5.70″ rod

LT4 specs