Cliford 6:8, Offenhauser intake, holley carb wtf?

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Oct 4, 2004
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Hudson, WI
72 Fj 55, My wife bought me. I posted pics a few months back. It says Cliford 6:8 Toyota on the valve cover it has a Offenhauser intake and a holley carb I have messed with it vary little but it will backfire only under load. any thoughts? where do i start? I do have a 2f sitting next to it in the shop that I think i will install but i would like to figure what is going on. :cheers:
 
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the 55
Fj55.webp
 
72 Fj 55, My wife bought me. I posted pics a few months back. It says Cliford 6:8 Toyota on the head it has a Offenhauser intake and a holley carb I have messed with it vary little but it will backfire only under load. any thoughts? where do i start? I do have a 2f sitting next to it in the shop that I think i will install but i would like to figure what is going on. :cheers:

If you ever get rid of the f motor and part it out I'd love to buy the Clifford valve cover from you.

Is it a holly 4 barrel carb?
 
Does that valve cover look like this one?...
engine.webp
 
yes that is it. When wife gets home with camera I will take some pics. and yes 4 barrel carb.
 
Marshall,

Not to hi-jack but take a moment to school us on the Clifford valve cover story. Haven't heard this mentioned before. Thanks, Dave

edit: did a search and came across the Clifford factory but thats about it
 
Don't know alot about it it was the PO that did it all. will try and get more info from him in the am.
 
Why not ask Pighead? Think Pighead doesn't know Clifford? Pighead gots the Clifford valvecover.
Clifford was semi-big back in the musclecar days. Made a name by making intake/race stuff for American six-bangers. Quarter-mile stuff. Built some sixes that could hold their own against a V-8 in the quarter-mile.. Hence the logo 6=8. They expanded into most six markets, slants, straights and even LandCruiser. And went under years ago. I guess. Haven't heard anything about them in years, except that their stuff is mostly unobtainium. It's kinda cool in a retro way, not necessarily better than OEM, just different.
I found my valve cover at the PMC (Petaluma) swapmeet a couple years ago...Got it cheap. I got the stock rubber gasket to fit and have been running it without a problem.
It would be interesting to see what other mods, if any, your engine has...Headers? A cam?
Good find. If you decide you want to go stock, I'd gladly trade two stock intake manifolds for your Offy...
 
Uh Oh I done P.O'd the Myopic Luddite:whoops:....no really I meant to put in et al to cover other knowledgeables. So these Cliffords seem to be sought after and there I was droolin over a M/T cover. J/K...thanks Pighead...love to hear more on this rare breed.

*edit ..that being said...Clifford is more than just a big red dog
 
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Do not mention it, romegadave. It takes a lot to PO PigHead... You're not there yet.
And to the OP...yes, build that 2F there in your shop and put that in your Pig. Punch it out 50 over, balance it and put it back together. Maybe use the cam out of the hotrod '72 engine if it;s aftermarket.
The '72 engine has probably been thrashed by whomever put the go-fast stuff on it....'72 F does not respond well to such thrashing.
 
Pighead first off thank you for info. Second when I do put the 2f in the pig is any of this stuff worth anything?
 
Sure, sure...it's gotta be worth something to somebody. They don't make that stuff anymore, and myopic ludites like that sort of stuff. You could probably sell that aftermarket stuff, buy a stock set, and get enough for a full tank of gas and a better running 'Cruiser.
 
Clifford valve cover like Pighead has stated. It's nothing special. It's just rare. One of those parts that you see very few of. I like rare parts. To the collector you have a very desirable part.

The manifold not so much. Still available. Not many people want to put a 4 barrel on an F or 2F motor. Still very cool. Offy is known for some crazy and very cool parts. I saw a manifold for the very early f motors they produced on e-bay one day. A manifold for an early f is nothing special except this one was made for two single one barrel carbs. Can you imagine? Anyway I told a friend of mine who is into the early stuff an he bought it. He is planning on putting two big window aisin carbs on it. Crazy just crazy.

Someone has done a lot of work on that engine. I'm betting there is more under the skin.

To read up on the Offy go here. http://www.exeterautosupply.com/Docs/Offenhauser catalog.pdf

And Clifford history. Clifford Performance :: Make 6 = 8
 
Andy man...


Thought you were going to run that thing down some weekend...


Where is your PCV valve and hose going into the intake/base of the carburetor?



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What month/year is your 55?

Please post that.


Please clean off the serial number stamping by the starter motor and post up what you find. Should read: F XXXXXX


A true 1972 should not have an oil fill and PCV valve set-up protruding from the right side of the engine block, in front of the distributor, like what you have pictured here. Those were on pre-1972 F engines.



You say that it backfires under load; do you mean under acceleration load, or deceleration load?

And is it popping out the tail pipe or back through the carburetor?





Also-


It appears as though your exhaust manifold gasket is burnt/leaking at the cylinder head in this picture.



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If your popping noise is happening when you decelerate, it is very likely that this area where the gasket is burnt away is allowing air into the exhaust system, which is likely combining with un-burnt fuel and this is causing your popping noise.

It is also very likely since the manifold gasket is burnt up, that you could have leaks on the intake side as well, which could also create a popping scenario, due to the un-metered air being introduced into the manifold, creating a lean situation that in order to get the engine to idle at all, would require the carburetor being adjusted to a very rich setting, which could very well be adding to the popping issue.








:meh:
 

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