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6.2 Diesel in GMT400 chassis questions

Darkrider

Darkrider

Lobo Solitario
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Lloydminster, SK Canada
Ok since my original plans for my 6.2 did not pan out I havr some questions about dropping it into my '94 eventually.

From my understanding I may need to find an oil pan from an early gmt400 chassis truck that is 4wd with the 6.2 due to clearances around the diff correct?

Could the original pan be modified to clear the diff if I were to stay with the ifs?

Would I need to change the pan if I go with a suspension lift in the truck? If I go with an ifs lift the kit will drop the front diff around 5"

I'm also looking at doing a solid axle swap to this truck and the convetsion kit along with the suspension lift kit for an older chevy will give me a 5.5" lift.

Will either method allow me to use the 6.2s original oil pan?

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I'd think you'd be fine either way. Whats the 6.2 out of? do you have a pan for it now?
 
The 6.2 is out of an 82 or 83 silverado 4x4 and yes I have the original pan plus I have a 6.5 pan kicking around that could be used to show where the 6.2 pan would need to be modified to clear the ifs diff.

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I was doing a 6.2 6.5 swap of some kind and the pans would not fit each other. I think some will some won't. It may be is mgw thread?
With a 5" lift and SAS you will have plenty of room.
 
just a number said:
here's a good thread by MGW that explains alot about the oil pan differences and what fits what(years/body styles)

http://www.thetruckstop.us/forum/sh...rom-the-dead-as-a-6-2-truck-The-Phoenix-rises
Click to expand...

I remember reading that thread before!

Burning oil said:
I was doing a 6.2 6.5 swap of some kind and the pans would not fit each other. I think some will some won't. It may be is mgw thread?
With a 5" lift and SAS you will have plenty of room.
Click to expand...

I belive it is infact an mgw thread that explains it. Either way I lift it the diff is moved so win win. Tbh since im loosing faith in the gm ifs system its most likely gonna be sas. So with that said I guess my 6.2 becomes my back up engine for my '94.
Thanks for the info guys! Now I just need to see if my idea for relocating the lift pump to the bed will work...

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Burning oil said:
What you thinking?
Click to expand...

Using a pump like the walbro you sell mounted in the bed with a filter mounted before the pump. The thing i was concerned about was line routing. The way i was thinking of doing it was leaving the stock fuel lines as they are and using the bypass kit i got from you to run hoses from the stock lift pump location to the bed. The reason i wanted to stay with the stock pump location intact is to give me the ability to swap in a stock lift pump in an emergency situation.
 
Don't see a problem, but its posible fuel could return to the tank (when off) and not want to prime on restart. A check valve would solve that though.
Unless you have another reason IMO I would just mount the Walbro by the frame rail.
 
Burning oil said:
Don't see a problem, but its posible fuel could return to the tank (when off) and not want to prime on restart. A check valve would solve that though.
Unless you have another reason IMO I would just mount the Walbro by the frame rail.
Click to expand...

Cool good to know that the check valve would solve that possible problem. The logic behind the idea is to provide easier access to service the filter and secondly to get the pump and filter out of harms way when off road. Some of the trails i drive on have a habit of putting me in situations that the frame rails brush the surface just don't want to risk taking out a filter. And the third reason is i want to mount a fuel pressure gauge or sensor for an in cab fuel pressure right on the pump or very close to it to monitor pressure.
 
OK cool, if you go with a check valve install it as close to the tank as you can. Maybe mount the whole thing inside a tool box?
 
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