I have a factory installed Autolite C9ZF-D(470 cfm) on my 69 Cougar with FMX. I just want to know if there is a 600 cfm Autolite 4300 that I can switch out with my carburetor without any modification(install and go)? I think in 1970 there was an Autolite 4300 for the 351C but don’t think it was set up for the FMX transmission. Any information would be appreciated.
My 70 351C with FMX has its original Autolite 600 cfm 4V 4300. Tag on it is D0OF-9510-AC. But if I were swapping carburetors, there are probably a lot better choices than this one.
I just want something that is a direct fit without mods to make work. Plus I like to keep things as original or era as possible. Right now I have to drive the Cougar daily so I can’t just send my current carburetor off right now to be rebuilt. I would like to buy a carburetor like yours(rebuilt or not) and replace my current C9ZF-D which I would send it off to be rebuilt and keep as a backup after the rebuild. If you know where I could find such a carburetor the info would be greatly appreciated. I just looked on Ebay and the current D0OF-9510-AC carburetors look ruff. Thank You for the help!!
I have one. It is in very good shape as I pulled it when it was nearly new off a mustang that went to the boneyard. It was a “hail mary” that didn’t work to fix that car. I had it on my 69 XR7 for a bit but took it off many years ago. It would need a going thru but it is a Napa Gold rebuild from the 90s. It should just need a light cleaning and maybe a gasket or two.
I’ve read you should plug the secondary idle circuit, fixes a flooding issue. There is a kit for it out there.
Let me know if you need it, I won’t use it.
Pete
Any pictures? I am mostly carburetor ignorant, so anything I need to know to make it work would be appreciated. How much are you asking? Thanks
Give me a sec:) It’s a C9OF-D. I believe it crosses to a 1969 torino auto 600 cfm but is listed as a service replacement for a 69 351 auto M code. Should be a bolt-on, it has all brackets and choke parts, kickdown lever. I’d take 200$ + shipping
I think that is a 470cfm model. Not sure the difference in yours and the D0OF-9510-AC whcih is currently on my car. THE CARBURETOR SHOP / MERCURY APPLICATIONS
The 600cfm models started with the 351C engines in 1970. One for the 351C should be a near bolt-on situation.
1970 ID numbers
1971 ID number
IMO, you’d be better off with a factory Holley for a 390GT engine. That’ll be a very similar bolt on as long as you get one with the automatic transmission kickdown setup. They’re 600-ish CFM and overall a very good daily driver carb. Talk to Drew at Air Fuel Spark who restores 60’s Ford carbs. He typically has some of the 390 carb cores on the shelf and could make adjustments as needed to suit your 351W.
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Yes I need the D0OF-AC I suppose. Not sure what the Y or C prefix models of D0OF are.
Yes, I measured the throttle bores, they are 1 9/16” so it is a 470.
Its in good shape and was remanufactured and sold thru napa. It works just as badly as it did from the factory!
I put a new holley 600 on my 69 m code xr7, it is built for todays gas and is a bolt on as far as throttle with ford kickdown lever, and then use the electric choke. I still run points so I try to keep things as basic and reliable as possible.
I would buy it thru WCCC, Holley support is awesome and you’d have equally awesome support from WCCC. Price is likely the same.
Yup, I’ve spent hundreds on my 4300 to get it to “work as badly as it did from the factory”. I’d get the Holley!
I truly appreciate your help. See for the next few months the Cougar is my only transportation. Plus I live in a fairly rural area, have zero friends and family here and if I break down or need transportation its walking for twenty miles, I am on my own. I would be very thankful if you could provide me with the exact Holley carburetor number or package for my 69 Cougar with 351W and FMX transmission, when I research there are so many Holley models without enough specifics listed. I need a replacement that is plug and play and my car won’t be down and me looking for parts needed and to arrive to make carburetor work properly. THANK YOU!!
I bought a Summit Racing square bore 600cfm model, SUM-M08600VS vacuum secondary carb. Also be mindful that if you swap to something other than the 4300, you will need to reroute fuel lines and add a fuel filter. The #1 cause of engine fires on these cars is gas leaking on the manifold, so you definitely want to use quality lines and make as few splices over the top of the engine as possible so if a leak forms, it doesn’t pool between intake runners and pose a fire hazard.
No prob, call WCCC. Or search 1969 cougar carburetor on the site. Its really a universal 600 holley with Ford kickdown and electric choke. It is a bolt on, and now the cost is about 600$ It doesn’t matter who you get it from so do WCCC a solid. You can call Holley and tell them what you’ve got and they will sell you the exact same carb.
You can literally bolt it on and fire the engine, make minor float, idle mixture and throttle adjustments and go. There’s TONS of youtube help there. Old cars are easy and fun, and the carb is the brain.
Personally I think you’re better off with the original carburetor. What are you looking to accomplish assuming your 351W is stock? I was told long ago the smaller cfm carb is actually slightly more responsive from a standing start then a larger carb. However at the top end the larger carb will win out. I have a stock 351 with a 68 Autolite 600cfm. Runs fine but I also have the original carb and I’m planning on switching back soon as I rebuild it. Also this original 69 Autolite 470cfm carbs are one year only and can be worth good money to someone looking for originality. Just my two cents.
I’ve also wondered if 600 cfm vs. 470 cfm really buys you much on a 351W. And I’m also a fan of originality where possible. That’s the only reason I’m still putting up with my 4300 carb.
Yes the car is stock. I want to have a rebuilt carburetor to install immediately after I receive it, with no down time for the car, since its all I have to drive right now. I figured I would just buy the larger 600cfm model and have rebuilt then install it and send my original off to have rebuilt as well and keep one on stand by always.
Oh, ok, so you are probably wanting to be able to swap between carbs without reconfiguring linkages and fuel lines. That limits things a bit more.
Yep thats what I want to do.