id have to say i thank google lol! i randomly decided i didnt want the 4.3 anymore and was going to put a 5.7 vortec into my 98 OBS, did some google searches and ended up here. i put up one post and thanks to GREG (REDHEARTBEAT) my plans for a 5.7 vortec quickly turned genIII 5.3, after A LOT of reading and a LOT of money it was "done" and the breaking of stuff began. 2 years later i sold the truck and bought the RST, luckily its still around town and some kid who knows NOTHING about ANYTHING owns it and beats it to this day and all i hear about is how nasty of a truck it is. so im grateful to this site and all who answered my questions as i knew NOTHING about motors or these trucks before and somehow built something noone around here is used to seeing. thanks all.
09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,