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Old 07-15-2021, 02:44 PM   #21
KULTULZ
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Post Re: best way to get heads off

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Originally Posted by 1930artdeco View Post

So, since this engine has been opened-at least on the top end so far-it has become a Frankenstein motor. Not that that is bad, but just not what I was hoping for. I checked the numbers on the block, heads, exh and intake manifolds and I get different years. This is what I got:

Block= ECZ 6015C=292/312
Exhaust manifolds R=B9AE, L=EDB (58-59 292 manifolds)
Water outlet=ECE-8/3
Intake=ECZ-9425-B

So my guess is this, the engine is a genuine low mileage 312 (well at least at this point in time) that went to the fairlane I got it out of. But at some point the heads and manifolds got replaced along with the valley pan. The only reason I say this about the pan is that it was designed with a PCV valve in it from the factory. It has a stamped indentation where the valve sits so I don't think it is a later mod.

Mike
This engine was pulled from a 57 FORD sitting in a salvage yard?

My thoughts ( ) is that somewhere in the engines service history, the heads were replaced as possibly the assembly heads needed servicing, and the later heads were probably cheaper from a salvage yard than having the originals machined. And they lowered CR enabling using regular gasoline.

The right EXH MAN goes with the later heads (DATE CODES are necessary to nail down what is correct and what is not).

As for the valley pan, most likely a PCV upgrade from a later engine to rid the road draft system.

The intake is correct for 1957. Is there any ID on the carb?

The engine was upgraded through its service history as FYB TECH progressed.
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The above posted information is in my opinion only (IMO) and may contain copy and paste material(s).

In addition, any above tech information is supplied in good faith. No responsibility implied or otherwise can be accepted for the way others use or interpret provided data.

Your experience(s), opinion(s) and mileage may vary.

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Old 07-15-2021, 03:56 PM   #22
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Default Re: best way to get heads off

The car I got it from got decapitated by a semi trailer and it was last registered in the 90’s. So it has been sitting for awhile. As for the carb, it has a Napa electric choke and I thought those were a product of the 70-80’s🤔. Here is the carb tag, so it was replaced as well, probably at the same time is my guess.
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Old 07-15-2021, 04:43 PM   #23
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Default Re: best way to get heads off

C5AF-F is a '65 Ford 352 Autolite 4100 carburetor. Pretty sure it may say "112" on the driver's side of the front bowl, which indicates the venturi dia. (1.12"), which in this case would be the 600 CFM version.
Also, there were some 292's built with the ECZ-C block too. Best to check the crankshaft ID to tell for sure. Go to www.ford-y-block.com, and go to the part with "312 identification".
Also, 312 main bearing caps have ECZ cast on them.

Sal

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Old 07-15-2021, 04:54 PM   #24
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Default Re: best way to get heads off

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Originally Posted by Dobie Gillis View Post
It's a Ford/Autolite 4100. They came out in 1957. To my knowledge they were all electric choke. These are great carbs, prolly about as close to set it and forget it as it gets. The venturis are annular discharge, good for gas mileage and performance. If you don't want it I would be happy to get it out of your way...
The Autolite 4100 was never original with an electric heated choke thermostat cap. That didn't happen until the 4100 was gone in the 70's.
It's an easy conversion for cars that have a rotted out choke warm air tube. Only costa about $15 to do it.

Sal
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Old 07-17-2021, 06:23 PM   #25
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Default Re: best way to get heads off

Got the valley an oil pans off, not to bad. It has 312 caps🎉🎉. Some sludge but not too bad. So as long as the bearings are good, I will regasket her and button her up.

Mike
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Old 07-18-2021, 04:30 AM   #26
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Default Re: best way to get heads off

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this is a rebuilt engine.the main caps are numbered.the steam holes were a giveaway anyway.
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Old 07-18-2021, 11:42 AM   #27
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Default Re: best way to get heads off

I thought the numbers cast into the main caps are how iD a 312 vs a 292?. Ok, so now I give up thinking I have a low mileage original bottom end��☹️. Since it has been rebuilt, they at least did some upgrades to it. Either way it will get cleaned up and stuffed-as long as the bearings are good.

Mike
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Old 07-18-2021, 11:55 AM   #28
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Default Re: best way to get heads off

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Originally Posted by 1930artdeco View Post
I thought the numbers cast into the main caps are how iD a 312 vs a 292?. ...
Yes, there are only two choices for the three letter prefix cast into the main bearing caps.
ECZ is the 312.
EBU is everything else, unless it's a DIY modified engine with a 312 crank that's been turned down to fit in the 'smaller' block.
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Old 07-18-2021, 12:57 PM   #29
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Default Re: best way to get heads off

im not talking about that you can see 2 stamped into the main cap.they didnt come numbered
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Old 07-18-2021, 02:26 PM   #30
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Default Re: best way to get heads off

OK, got it. I missed that. OK, so I have rebuild, at least I have a Y block that I am hoping is in good shape. What is the opinion of me popping the caps and plastigauging the bearings?


Mike
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Old 07-18-2021, 02:48 PM   #31
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Default Re: best way to get heads off

have a look at them at least scrap the top clean on one of the pistons to see if its oversize.im guessing it is.
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Old 07-18-2021, 07:36 PM   #32
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Default Re: best way to get heads off

Probably are but I could not see any numbers in them.
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