5.7L Vortec vs. 5.3L Vortec
I currently tow with a 2002 Avalanche 1500 with a 5.3L. I am looking to get a 3/4 ton tow rig to better handle the TT and our gear. I have a line on a 2000 Chevy CCSB K2500 with a 5.7L Vortec/4L80E,...
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my experience is I towed for years with my old 1998 chevrolet 2500 4x2 with the 5.7 and I believe it had the 4.10s. I towed all over the states with that truck and it ALWAYS had plenty of power. At the time was only towing 4500#s, but occasionally towed more and always handled it great. Unfort, at 170,000 miles transmission went out and I traded it in. Otherwise I never had any major problems with that truck or motor. I traded that truck in for my Tahoe which is a 2003 with the 5.3. Which others has stated, the biggest difference is you will hear the RPMS much more with the 5.3 versus the 5.7... I still have pulled up to around 6,700#s with the 5.3 but I know dam well the old 5.7 would have pulled it better. So yes you will notice the 2500 will handle your weight much better and in my opinion you will love towing with the older chevy 5.7 motor versus the newer 5.3 you have now.
