Mid 80's GM diesel from a pickup should be the 6.2 or 6.5 liter variety, a V8, and although some folks like them, just as many don't. With proper care they can last, but they are not known for being extremely reliable, strong, or long lived engines. (but I have no first hand experience with them, best to listen to someone who does... you have a later turbo version right?)
It should be comparable to your gas engine, but nothing special.
The Detroit Diesel 4-53T is also liked by by many, and disliked by many, but not for the same reasons as the 6.5. The main complaint about the Detroits is noise, and perceived lack of torque. In reality they make noise, and lots of it, and they have plenty of torque, just at a few hundred RPM higher up than folks are use to. They are also extremely reliable, strong, and long lasting, all important for a real truck engine. Very simple and economical to work on too.
But that's enough brain washing...
If you want a Detroit decide for yourself, figure out why, and write it down so you can remind yourself later on if you forget. They are good engines, but they are not for everyone.
Pick an engine you understand, admire, respect, and are not afraid to work on; anything less and you won't be happy.
Grigg
Last edited by Grigg; 08/09/2008 4:29 AM.
