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07-15-2021, 02:44 PM | #21 | |
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Re: best way to get heads off
Quote:
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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***** - DISCLAIMER -
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. DIAGNOSED CDO - (OCD In Correct Alphabetical Order) |
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07-15-2021, 03:56 PM | #22 |
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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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07-15-2021, 04:43 PM | #23 |
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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 Last edited by scicala; 07-15-2021 at 04:48 PM. |
07-15-2021, 04:54 PM | #24 | |
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Re: best way to get heads off
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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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07-17-2021, 06:23 PM | #25 |
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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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07-18-2021, 04:30 AM | #26 |
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Re: best way to get heads off
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07-18-2021, 11:42 AM | #27 |
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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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07-18-2021, 11:55 AM | #28 | |
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Re: best way to get heads off
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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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07-18-2021, 12:57 PM | #29 |
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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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07-18-2021, 02:26 PM | #30 |
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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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07-18-2021, 02:48 PM | #31 |
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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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07-18-2021, 07:36 PM | #32 |
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Re: best way to get heads off
Probably are but I could not see any numbers in them.
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