Want to take out the 350 v8 and put in a 6.2 Diesel in a 1990 Suburban 4x4 1500?

[blackandgold51]

I have a 1990 Suburban V1500 4x4, I was wondering about taking out the 350 for a 6.2 diesel. How can I do it? I have been asking a few guys that I know about it and they said just sell it and geta suburban with a diesel however, I had put a lot into the vehicle and its not easy for me to let go.

[trbankii]

It’s a pretty simple swap with a mechanically injected 6.2. The basic details are posted here: http://www.thedieselpageforums.com/tdpforum/showthread.php?t=27827

[Edahall]

Best bet would be to find another Suburban or parts truck with a diesel in it. There were some differences with the diesel equipped vehicle including larger radiator, hydroboost, different torque converter, etc.

Also, be prepared for a drop in performance from the 350 unless you plan to also install a turbo.

[blackandgold51]

Best bet would be to find another Suburban or parts truck with a diesel in it. There were some differences with the diesel equipped vehicle including larger radiator, hydroboost, different torque converter, etc.

Also, be prepared for a drop in performance from the 350 unless you plan to also install a turbo.

I'm not worried about performance. Just fuel economy. Also I have a gear ratio where my acceleration is quick. The engine's Rpm goes high before a quick shift on the 1st gear, 2nd and then 3rd

[Edahall]

For best fuel economy, you'll want to swap in either 3.43 or 3.08 gears. Also, look for heads with smaller precombustion chambers often found in 1985 and older 6.2's.