350 TBI vs diesel

[Scott39]

I have a 350 TBI with 88,000 miles on it in my 91 blazer.
My buddy has a 6.2 turbo diesel 1985 truck that has 134,000k on it, but he has not ran the engine for about 1.5 years, because he rolled his truck, but the engine was still good, so he pulled it out.
I asked him if he would want to trade straight across, my 350 for his diesel, he said yes.
Is this a better deal for me?
What MPG out of the turbo diesel?
Would I notice better horse power, or take of power with the diesel and turbo?
I have to get the Colorado emissions, when I take it in, will they know that my blazer didn`t come with a diesel, besides the VIN #?
I`am running 38" tires, dana 60,70, 5.86 gears, 700r, 241 SYE kit.
I drive this blazer to the trails.
Thanks,
Scott

 

[BurbinOR]

First, make sure that is a TURBO diesel. If I remember right ( no guarantee ) none of the 6.2's were turbocharged. Might have added one I guess. MPG will almost always be better with a diesel and a Turboed version will have more grunt for wheeling. Your 5.86 gears may be a problem even with your 700R4 overdrive however. Typically, most diesels don't want to or need to rev much. My Cummins stays below 2000 rpm 90+% of the time.

 

[steve_kibbe]

posted in garage

 

[tRustyK5]

First, make sure that is a TURBO diesel. If I remember right ( no guarantee ) none of the 6.2's were turbocharged. Might have added one I guess. MPG will almost always be better with a diesel and a Turboed version will have more grunt for wheeling. Your 5.86 gears may be a problem even with your 700R4 overdrive however. Typically, most diesels don't want to or need to rev much. My Cummins stays below 2000 rpm 90+% of the time.

2357 rpm at 65 mph...not far out of the range IMO. Mine spins at 2550 at 65 mph, and the motor is quite happy with that rpm and I still manage 16.5 mpg.

Rene

 

[Scott39]

First, make sure that is a TURBO diesel. If I remember right ( no guarantee ) none of the 6.2's were turbocharged. Might have added one I guess. MPG will almost always be better with a diesel and a Turboed version will have more grunt for wheeling. Your 5.86 gears may be a problem even with your 700R4 overdrive however. Typically, most diesels don't want to or need to rev much. My Cummins stays below 2000 rpm 90+% of the time.

Yeah it is a turbo, because he put it on.