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Drag Racer!
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1,158 Posts
Discussion Starter #1
i was lookin at a 98 GMC 3500 dually with the 6.5 diesel today......5 spd manual, ext. cab, 62k miles, nice truck but is the 6.5 diesel a good engine??
 

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Drag Racer!
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1,158 Posts
Discussion Starter #3
im stuck between getting a 6.5 (the duramaxes are too spendy for a poor college boy like myself) or getting a cummins........either way the 83 C-10 is staying w/ me
 

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55 Posts
The 6.5 is a decent motor as far as reliability (better than a gas, but it's no cummins), but it is a dog in the power department. Only thing you have to wrory about with the cummins is the truck falling apart around the motor. I would wait to find a 12 valve cummins in your price range. Oh and stay away from the dodge automatic tranny.
 

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thats right
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1,399 Posts
ive never heard anything bad about the 6.5. its just pretty weak compared to the cummins, dmax, and power stroke
 
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