Carb type Intake manifold
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Carb type Intake manifold
Sent an intake manifold and yfa feedback type carburator for an efi to carburator conversion. Bolts on the intake manifold too narrow for carburator to fit.
I thought all intake manifolds the same. It has the firing order cast on the intake manifold for the inline 6. Do I have the wrong intake
I thought all intake manifolds the same. It has the firing order cast on the intake manifold for the inline 6. Do I have the wrong intake
Last edited by Kunstman; Nov 16, 2017 at 11:53 AM. Reason: Put out on 'UNEEDAPart' for parts & they sent back crap. Need to edit and save remarks made about feedback carb, wrong manifold and how feedback no good w/o computer.
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Joined: Jan 2001
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From: Virginia
Wrong intake or wrong carb. But I am not up on the 300 sixes too much. I think fate is in your favor though, I would not install a feedback carb on a engine with no computer. How is it going to work correctly? You are going to swap distributors too? If so, you are not going with a feedback setup are you? I would get the whole setup from a 82 or earlier six. Carb, intake manifold, distributor, the whole shooting match that works together.
Senior User
Joined: Oct 2002
Posts: 164
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From: Mount Vernon, Washington
Some of the big six intakes had a smaller bolt pattern, the same as the smaller sixes. I haven't figured out if it's a 240 thing or if it's a van thing. The couple I've come across were in vans but I don't know if they were 240's or 300's.
Post Fiend
Joined: Jun 2003
Posts: 8,209
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From: Black Hills of SD
I think around the late 70s they changed to a larger carb base. My best guess is between 1976 and 1979 since I found a 79 carb too wide to bolt to a 76 intake once. The feedback carb is the last thing you want to start fiddling with and trying to make work. The whole engine management system was clunky at best when new.
Lead Driver
Joined: Jul 2009
Posts: 6,477
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From: Sheffield, AL
On the later 300/4.9L sixes, the two hold down bolts are farther apart, but an earlier carburetor can easily be modified using the later gasket as a template and a small rat tail file. It can be done in ~ 15 minutes. Many rebuilt carburetors come with elongated hold-down holes so they can fit either manifold.
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