1993 K3500 SRW 6.5 NV4500 Towing Capacity

[92_Bahama]

Hey everyone, I am looking at a 9200GVWR ECLB K3500 with a NV4500 & 6.5 Diesel for a back up tow pig while I restore my 2000 K3500. I am not sure if it is a 3.73 or 4.10 truck, have not been able to look at the truck yet. I pull all of my trailers in 4th gear at 60MPH, do you think an old mechanical 6.5 is up to the task of pulling 10K & under? I was always told to stay away from 6.5's but this truck has me thinking... So all you 6.5 fanatics let me know what you think!!

 

[93detroit]

The answer is complicated. If the motor is solid (good head gaskets,oil pressure, and harmonic balancer), with a few upgrades it may work fine depending on your local geography. Flat ground and rolling hills would be fine with a manual. Steep climbs without a running start, not so much. Make sure the cooling stack is clean and in top condition. Install a 2000 model year water pump with a Hayden severe duty fan clutch (spin on), and a duramax fan. That will keep it cool. If you want more power, install a pyrometer and boost gauge, a Chinese hx35 (12-15psi max), and turn the fuel screw in a quarter turn. Keep egt under 1,100 and have fun. DON'T lug it! It will pull right down to 15-1600rpm, but the head gaskets won't like it.