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By 55ebird - 11 Years Ago
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I have heard that the 1957 F-birds had special lower compression cylinder heads. This seems to be well documented. I have also heard that the F-Birds had a special 312 block however, i can't find any mention of this in the literature. Is it true? If so, how is the F-code 312 block different from other 312s?
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By F-Code Clone - 11 Years Ago
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Steve, I am by no means an expert so you can take this with a grain of salt. The Supercharger heads are lower compression and would carry the part number EDB-D on them. I actually have a post in here (right below yours in the technical forum) requesting additional information on the EDB-D heads I just acquired. To my knowledge the block does not have any unique identifiers and is exactly the same as any other 312. The F-Code cars also have unique intake manifold, carb and numerous other parts.
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By Hollow Head - 11 Years Ago
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Guys, read this first... http://vs57.y-block.info/vr57pinups.htm
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By randyh - 11 Years Ago
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I am not aware that there is a different block for the supercharged engines, the parts manual does not call out a different block with supercharger.
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By NoShortcuts - 11 Years Ago
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I've been following Ford y-blocks for 50+ years. Like Randy, I have never seen anything in print or heard anything from anyone considered knowledgeable that indicates that the engine short block assembly (block, cast crank, forged rods, cast pistons) was different in any way for any of the '57 312 engine options. That would include ALL '57 Ford single four barrel carburetor ('D' code), dual four barrel carburetor ('E' code), and the supercharged ('F' code) engine options.
Hope this helps. 
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By NoShortcuts - 11 Years Ago
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John Mummert's web site at http://www.ford-y-block.com/ is a compilation of a tremendous amount of Ford y-block data.
In his Technical section, John indicates that the block casting letters for '57 312s were:
ECZ 6015-B coupled with ECZ main bearing caps
ECZ 6015-C coupled with ECZ main bearing caps
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By pegleg - 11 Years Ago
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the short blocks for all the 57 312's are the same. Heads and intake were special.
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By 2721955meteor - 11 Years Ago
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super charged engines have a different cam ,as well as heads cam part# wasb7a 6250-c io 32 ic78 eo78 ec32 duration290 with 1.54 rockers. local cam grinder has thepatern to redo1.
head # isb7a6049e with casting #edb-d,or edbb-e. this info is from ford performance hand book by ray brock no date on the publication, i paid the going rate of 1us dollor. another old ford manual claims the #for heads is b7a 6049-e cast#edb-d edb-e
how factual remains to be comented,interesting manuals.cliff
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By PF Arcand - 11 Years Ago
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.. Meteor: I don't have a copy of the Ford Performance Handbook by Ray Brock, but remember seeing it & if I recall (?) it was from 1962..
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By Rudder2fly - 11 Years Ago
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!962 is the correct publishing date. I have the magazine in hand. Gene Stoehr.
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By pegleg - 11 Years Ago
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Meteor,
The standard F code motors used the same cam as the D or 245 hp engine. In other words they all had the same cam in 1957.
There was an optional camshaft available in both the E code and F code engines. Standard cam ratings were 270 and 300 hp.
The optional cam, which has been called the F code cam shaft was rated at 285 and 340 hp respectfully. I am not sure the factory ever actually used those ratings, I believe that those were AAA and NHRA ratings for class purposes only. Then everyone began to use those numbers to identify engines with the optional parts.
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By 2721955meteor - 11 Years Ago
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Rudder2fly (11/28/2014)
!962 is the correct publishing date. I have the magazine in hand. Gene Stoehr.
myn has a picture of a 406 on the cover late 62,when did the 1st 406s com,they became 427s mid 63
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By 2721955meteor - 11 Years Ago
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in the mid 80s i was doing a 312 for a young man,sent the cam to the camgrinder ,he called and wantd to trade cores as he had a customer with supercharged bird and needed the core ,which he claimed had special markings. i traded him as he advised that the blower grind would not work well in the na 312 going into a 56 pickup.(it was barrey at shadbolt cams who i did and still do deal with) i would be inclined to take his word. he also stated they did research for ford as in canada ford had cronic cam failures in 1956,something to do with the parkerizing process. hope some of the ford retirees will confirm or deny this. i am very interested in failure analysis as took training from cat. not trying to say any one is right or wrong,just hungrey for acurate info. cliff
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By charliemccraney - 11 Years Ago
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I have what is suppose to be a repop of the blower cam that Mummert produced a long time ago. While it certainly has an impact on low end torque, I can still do truck stuff with it. I wouldn't want to all the time, but it gets the job done, when needed. If you used it strictly as a truck, then the cam would be terrible but for a fun street cruiser or street/strip truck that does occasional truck stuff, it is fine. I've had this cam in 2 engines, one a very mild 292, and the current stroker and in both cases, I have the same opinion.
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By Rudder2fly - 11 Years Ago
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Looks like the 406 was new in 1962 Fords. Gene S.
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By pegleg - 11 Years Ago
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The " Blower" cam that I have was made by Engle from a new core. We added some exhaust duration to help with being forced to run manifolds and full exhaust. It works pretty well at the strip, (best of 105.6 MPH) but is reasonable on the street with 3.25's. A little rumbely at idle of 700 RPM.
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