1976 Loadstar 1700 Carb Question

A

acsbmx_1

New member
I recently bought a 1976 Loadstar 1700 and it has the MV446 engine in it. Upon the research I've done it looks like those motors only came with a 4 barrel carb on them however this one has a 2 barrel. I'm having a heck of a time finding a 4 barrel for it to bring it back to it's original build. Do you guys know of where I can source one or if it crosses over to something that would be more common to be able to source?
 
There's not a lot of people here who know the medium duty trucks. I've got a '73 1700 dump trick with a 345. If you post some pics of what you're working with we'll try to help.
 
IH used Holley Model 4150 series and 4160 series 4-barrel carbs.
Both are "Square-Bore" carbs.

But specifically for the MV-446, IH used a.......
Holley Model 4150G (G = Governed) carb.
IHC part number 467026-C91.
Holley List Number 7251.

Throttle Body Bore Diameter: Primary 1 7/16" ...... Secondary 1 7/16".
Venturi Bore Diameter: Primary 1 3/16" ...... Secondary 1 1/16".
Main Jets: Primary #572 ...... Secondary #572.

Curb Idle Speed: 525 RPM - 575 RPM. (Transmission in NEUTRAL, Air Conditioning OFF).
High Idle Speed: 1300 RPM, +/- 50 RPM. (Throttle Modulator Extended).
Fast Idle Setting: 2400 RPM.

Governed Speed, No Load: 3800 RPM.
Governed Speed, Full Load: 3600 RPM.

Power Valve: Stamped 11. (Power Valve Identification Number is Stamped on a Flat on the Base of the Valve).
 
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