ECM Interchangeability

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Fleetwood

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Joined
Dec 15, 2021
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Location
Kansas
First Name
I
Truck Year
1987
Truck Model
K10
Engine Size
350
Hello! I need an ECM for an '87 350 TBI. I have access to 90'-93' ECMs that are in 350 TBI c1500s. Would these work without modification?
 

Tank6x2

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Location
Edmonton Alberta Canada
First Name
Kurt
Truck Year
79/86
Truck Model
C30
Engine Size
350, TH400.4:10 gears 2WD
You would have to physically compare the harnesses I’d think
 

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