carb questions...
Thread Starter
|
Elder User
Joined: Feb 2010
Posts: 565
Likes: 0
From: naples, fl
carb questions...
1. where can i get a cheap oem or oem equal carb.
2. with a carb from a junk yard 461 fit on top of my 351W.
3. will a carb that's too big cause a bad vibration at idle and under load?
2. with a carb from a junk yard 461 fit on top of my 351W.
3. will a carb that's too big cause a bad vibration at idle and under load?
Moderator
Joined: Jan 2001
Posts: 56,977
Likes: 2,733
From: Virginia
1. where can i get a cheap oem or oem equal carb.
2. with a carb from a junk yard 461 fit on top of my 351W.
3. will a carb that's too big cause a bad vibration at idle and under load?
Moderator
Joined: Jan 2001
Posts: 56,977
Likes: 2,733
From: Virginia
I am assuming you have a 460? If so, the original carb is a 4bbl made by holley, but it has lots of vacuum ports that you will probably have to plug to make it even work. I am also assuming you have a aftermarket carb that does not have very many lines on it correct?
Thread Starter
|
Elder User
Joined: Feb 2010
Posts: 565
Likes: 0
From: naples, fl
actually its a 351. and i got 1 or 2 vac lines and they are both plugged...also when i floor it i get this weird *** noise that i cant explain at all..sounds like a loose rod banging around but only when at 3/4-WOT at cruise i dont hear it and when towing a car i dont hear it unless im in that throttle band
Posting Guru
Joined: Jun 2004
Posts: 1,635
Likes: 0
From: Niceville, FL.
I have doubts that a carburetor could cause a knocking sound. Pre-ignition or detonation sounds, yes- due to too lean a mixture or timing too far advanced. I'd first try retarding the timing. Your truck with 351 and a four-barrel carb used a Holley (Motorcraft) 4180C. If that's what you have then get a good kit and a new correct power valve and rebuild it. I suggest a Holley or Walker kit and power valve. Use plenty of spray carb cleaner and lots of compressed air to clean all the passages. The above named kits have very good instructions.
Trending Topics
Thread Starter
|
Elder User
Joined: Feb 2010
Posts: 565
Likes: 0
From: naples, fl
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Post Fiend
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
Have a look at the choke horn, you should find the List number along with a Ford engineering number if it's a factory carb, like so
Onve you have the list number, take a look here:
http://www.holley.com/data/TechServi...%20Listing.pdf
If it's not there, call them, they should be able to tell you the application, and all of the stock specs for the carb.
This page will be able to help you with the Ford engineering number and give you the application if nothing else:
Ford V8 Truck Carburetor Parts - The Carburetor Doctor
If it is a factory 80's Ford/Holley carb, it's a 600 CFM 4180C, no matter if it came off of a Mustang 5.0, a 351W or a 460.
Onve you have the list number, take a look here:
http://www.holley.com/data/TechServi...%20Listing.pdf
If it's not there, call them, they should be able to tell you the application, and all of the stock specs for the carb.
This page will be able to help you with the Ford engineering number and give you the application if nothing else:
Ford V8 Truck Carburetor Parts - The Carburetor Doctor
If it is a factory 80's Ford/Holley carb, it's a 600 CFM 4180C, no matter if it came off of a Mustang 5.0, a 351W or a 460.
Posting Guru
Joined: Jun 2004
Posts: 1,635
Likes: 0
From: Niceville, FL.
Get a Holley 4180C for an automatic trans vehicle from a junkyard and rebuild it. You can often find kits on ebay for much less than at auto parts stores. Junkyard price should be about the core value.
Posting Guru
Joined: Jun 2004
Posts: 1,635
Likes: 0
From: Niceville, FL.
Why don't you contact Holley's online Technical Service, give them the info on your carburetor and truck, and ask them for advice about what to do to make it right for your vehicle? You'll probably at least need adapters for the kickdown rod and the throttle cable. You may also need a proper power valve to match your engine.
Thread
Thread Starter
Forum
Replies
Last Post
Penn79
1973 - 1979 F-100 & Larger F-Series Trucks
3
May 31, 2014 12:16 PM
R L Sullivan
1973 - 1979 F-100 & Larger F-Series Trucks
13
Apr 30, 2012 06:35 PM
Chumbucket
Fuel Injection, Carburetion & Fuel System
2
Mar 18, 2008 02:56 PM
