6.5 turbo into a 83 c1500

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tone4181

Junior Member
Joined
Mar 2, 2025
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Location
Vancouver ,canada
First Name
tony
Truck Year
1983
Truck Model
c1500
Engine Size
6.2
Hey everyone , I have a 1983 c1500 with a 6.2 not running and I want to put a running 1992 6.5 turbo into it . What can I expect in the way of issues with this install . The 83 is all original as is the 92 , I just pulled the 6.5 and I am pulling it apart for inspection . Thanks in advance for any replys.
 

Blue Ox

Turning Diesel Fuel Into Fun
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LI-NY
First Name
Derek
Truck Year
MCMLXXXV
Truck Model
K20HD
Engine Size
6.2L
Is your truck air conditioned?

That's the first problem. Then there's exhaust.

The A/C is a significant issue. The exhaust you can figure out.

Most of the rest of it is one for one.

Well, there's the air intake,....
 

TotalyHucked

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Auburn, Georgia
First Name
Zach
Truck Year
1985
Truck Model
Sierra 1500
Engine Size
5.3
I don't have any answers for ya but I follow a guy in Washington State on the socials that has a turbo 6.2/NV4500 combo and loves it. Should be a sweet little truck when you're done
 

Blue Ox

Turning Diesel Fuel Into Fun
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Derek
Truck Year
MCMLXXXV
Truck Model
K20HD
Engine Size
6.2L
No A/C
Intake going to be a problem ? I can see ill have to get creative with the down pipe .

The intake isn't a really big issue, you'll just have to be creative. The rest of the engine package is comparable to a 6.2L and in many cases, a gas engine. It's all GM.
 

ali_c20

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Location
Austria
First Name
Alexander
Truck Year
1974, 1979
Truck Model
C20, K5
Engine Size
350, 350
Welcome from Austria. Looking forward to see pictures from the procect.
 

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