Carb question
Postmaster
Joined: Jul 2003
Posts: 3,934
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From: iowa
Agree with the others than you need a different intake for a 4bbl. Right now i am running a chokeless 1.38 venturi autolite 2100, in iowa. The gas gauge does not work and i don't imagine i am setting any fuels records either.
I did a 2bbl 1.23 conversion to a 4bbl before, and its helps mid and top range a bunch. I wouldn't mess with those adapters either.
I did a 2bbl 1.23 conversion to a 4bbl before, and its helps mid and top range a bunch. I wouldn't mess with those adapters either.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
If so, the two piece soldered together copper float has filled with gas and has settled to the bottom of the tank.
The float is still available from Ford (MSRP: $7.41) and fits all the cars/trucks from 1957 thru 1979: COAZ9202B.
Postmaster
Joined: Jul 2003
Posts: 3,934
Likes: 0
From: iowa
Does the gauge read empty all the time?
If so, the two piece soldered together copper float has filled with gas and has settled to the bottom of the tank.
The float is still available from Ford (MSRP: $7.41) and fits all the cars/trucks from 1957 thru 1979: COAZ9202B.
If so, the two piece soldered together copper float has filled with gas and has settled to the bottom of the tank.
The float is still available from Ford (MSRP: $7.41) and fits all the cars/trucks from 1957 thru 1979: COAZ9202B.
Elder User
Joined: Mar 2004
Posts: 747
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From: Klamath Falls OR
Stock '73 heads have small ports and a large port manifold is a mismatch the wrong way. Going from small to large is OK. Going from large to small causes major disruptions in the fuel/air mixture where the manifold and port meet. Will it work? Yes. Will it work right? Not really. Better to find an "S" manifold for the later engines.
Posting Guru
Joined: Jul 2003
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I have to side with Bear on this one. One because the kid is almost as old as I am and the other is because he is right. If you match the intake to the heads, with the head ports being larger than the intake ports, you will get better flow.
If you get 20 hp increase with a mismatch with the intake port being larger, then the stock intake was a really bad intake manifold.
If you get 20 hp increase with a mismatch with the intake port being larger, then the stock intake was a really bad intake manifold.
Elder User
Joined: Mar 2004
Posts: 747
Likes: 0
From: Klamath Falls OR
I have to side with Bear on this one. One because the kid is almost as old as I am and the other is because he is right. If you match the intake to the heads, with the head ports being larger than the intake ports, you will get better flow.
If you get 20 hp increase with a mismatch with the intake port being larger, then the stock intake was a really bad intake manifold.
If you get 20 hp increase with a mismatch with the intake port being larger, then the stock intake was a really bad intake manifold.
Elder User
Joined: Mar 2004
Posts: 747
Likes: 0
From: Klamath Falls OR
I'm sorry, It was a C/J intake on plan Jane 460 Heads! Here is a link and read the bottom post!
460 questions - HotBoat Forums
460 questions - HotBoat Forums
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Posting Guru
Joined: Jul 2003
Posts: 1,287
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That was with the Marine 460. NO Joke! But for the most part you guys are right. The only thing is we are all assuming what heads are on there! Assuming gets all of us no where right now. We all know when it comes to FE's that you dont know what you have until you open it up! For all we know...It could be a 410 or a 360! We need more info that we are not getting. Need the head casting #'s "PLEASE"
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
I'm sorry, It was a C/J intake on plan Jane 460 Heads! Here is a link and read the bottom post!
460 questions - HotBoat Forums
460 questions - HotBoat Forums
Elder User
Joined: Mar 2004
Posts: 747
Likes: 0
From: Klamath Falls OR
Need to reread my post. Intake ports are BIGGER then the ports on the head. Gain 20HP.
Post Fiend
Joined: Mar 2004
Posts: 6,056
Likes: 8
From: Union, Washington
My guess would be the SCJ cam and heavier valve springs that account for the horsepower increase and not the manifold.
Elder User
Joined: Mar 2004
Posts: 747
Likes: 0
From: Klamath Falls OR
Talk to the Engineers for the marine division then! My uncle had a hard time with it too until he found out! JMHO
Check out the post, that I posted on.... The Guy is off Ford460.com and knows his boats. He knows that they come with CJ intakes from the factory. I've done the research on it already. You can do the same...
Check out the post, that I posted on.... The Guy is off Ford460.com and knows his boats. He knows that they come with CJ intakes from the factory. I've done the research on it already. You can do the same...