what is the towing capacity of my truck with the 454 V-8 engine

it depends on what you are about to tow. does it have tow bars? does it have single dubble or tripple axels, fifth wheel, goose neck, are you towing it from a stinger hitch or bumper?

fifth wheel trailer with dual axles

if its fifth wheel I would let you know that rear air shocks. but it should handle any thing you throw art it with a 3/4 ton. here is a web site that you can go to and see . I hope this helps http://changingears.com/rv-sec-calc-trailer-weight-fw.shtml

On a 1996 silverado 2500 with 454 4:10 gears what is towing capacity