How to make a edelbrock fit on a 351 c 4v

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73 q code

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Mar 31, 2016
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1973 Q- code Mach 1
Tried to install my new Edelbrock 1405 carburetor today on my 351 c 4v, the old one was a autolite 4300 D. As you can see on pics the different, the new one has much smaller bores and old intake manifoild much bigger! Have i get wrong carb? do i have to buy intake manifold too? or is there other solutions? 

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72 Fastback - 351C-4V, Fitech EFI, T56 Magnum 6 Speed

73inNH

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1973 Convertible, Q code, 4 speed, 3.25, A/C, P/S
I just went through the exact same thing. I could not find an adapter that would work.

I ended up replacing the intake manifold with an Edelbrock Performer 4V.

You can read about my experience here:






 

73 q code

Member
Joined
Mar 31, 2016
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Location
Norway
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1973 Q- code Mach 1
Okay i see this is a common problen. Disision made, rebuild kit for my autolite 4300 D ordered instead of change intake manfoild. 

 

73inNH

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1973 Convertible, Q code, 4 speed, 3.25, A/C, P/S
Cool. The members of this board are fantastic. They've helped me a ton in a short amount of time.

Keep posting your questions.

 
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