Originally posted by LakeMichigan+May 26 2004, 08:33 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (LakeMichigan @ May 26 2004, 08:33 PM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-MelvinJ@May 26 2004, 07:11 PM
The 5.7 truck engine was one of the GenI smallblocks, along with the 5.0L, and the 4.3 V6 is basically a Gen1 5.7 with 2 cylinders chopped off. This engine was essentially replaced by the GenIII 5.3. The 5.3 makes more horsepower, although a bit less torque, and gets better mileage.
The 6.0L is also part of the newer GenIII family, and really didn't have a counterpart before 1999, unless you go back to the 70's and the 400 (6.6L) small block.
The 5.7 was a damn fine engine though. It easily outpowered the Ford and Dodge competition, and got better mileage to boot.