Please identify this engine...

[LandBC]

I was cleaning out a neighbors barn and found this engine and transmission. He gave it to me to take to the scrap yard. Before I junk it, I would like to know what it is and if it is worth saving. Thanks for your help.

[George/Maine]

Don,t junk it its a y block may even be a 312 ,y blocks ecz think is 312 years 54 to 62 -63

[Junknshit]

My eyes ain't too good any more, but ecz-a was a 56 engine, ecz-b was a 56-57 engine, and ecz-c was a 57 engine, could either be a 292 or 312. if it has ebu main caps it's a 292 and ecz main caps it's a 312.
Just kinda lookin, sorta, and trying to revive some long ago stored info out of my noggin, I would take a guess that it is a 312 out of a 56 merc.
These numbers are for block numbers which would read such as ecz 6015 a.
If someone can read the head number I might be able to get more accurate, but what I can see ( I cant really ) on the head looks like a z and a g. if that is so it is a 272 or 292 head, but with the 1.92 valves. Hope I helped and didn't confuse.

[LandBC]

Thanks for the prompt replies. I learned a while back that just because I don't now what something is, doesn't mean it should be trashbound. The block in the fuzzy picture reads ECZ 6015A.

I do not need the engine so I will be selling it if anyone wants to make an offer. I am located in the Salt Lake City area. I have never tried shipping anything this large/heavy so it would be local pickup only, or you would have to pay for and teach me how to ship it.

[Junknshit]

One more thing that might help someone out is E just means it's an engine part and B or C or D is just the era it was manuf. for production cars. All ford Y blocks were 6015. All Y block heads were 6090. etc etc.

[raceron1120]

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Lots of things can/could happen over the years but I think if the ECZ-A block was matched up with ECZ-C heads in a '56 Merc, it'd be a 312. Great "scrap" score! Those embossed Mercury valve covers are nice pieces too.

[40cpe]

I don't think Mercury used the 292 after '55, so I would wager it has the 312 crank. The transmission could very well be the heavy duty T-85. Is the trans an Overdrive? If it is a T-85 OD it is very desirable.

[paul2748]

It looks like a 56 Merc. It has the dual diaphram vacuum unit on the distributor (56 item only), is a ECZ block and Merc. Everything points to 312.

[Ray With]

I would have to vote its a 312 from looking at all the signs and numbers. You could remove the trans and bell housing and look on the crank shaft flange and if it has a round dot raised up on the flange its a 312.

[Junknshit]

I just had to do a little digging last night thru some old, old notes, and it looks like everyone is pretty right on. Racerron really got me to thinking about the C heads. They are a 56 only head, and on the Merc 312, 4 bbl, it made it a 225 HP motor. Other ECZ heads + smaller HP. The C heads have 1.78 intakes and an advertised Comp. ratio of 9.0:1
Of course, Fords advertised CR was always a little high. Uaually about 8 or 9 %. That would still be about an 8.3 which is still pretty good for the times.
Looks like you got a good-un.

[Junknshit]

sorry if it double posted

[LandBC]

I took a closer look at the transmission. the tail-housing is stamped with R10F-1 O.DIV. The transmission itself is pretty dirty but I think I could make out a 44E. I will try to get pictures in the next day or two.

[raceron1120]

I have one set of ECZ-C heads, they were indeed on a '56 312 (block was badly cracked & scrapped) and are now on the '55 Mercury 292 in my Fairlane. I also found a 2nd set, likely later replacements on a 272 V8. Good heads, I've heard they're second best to the later ECZ-Gs.

[Junknshit]

More digging Racerron, and I think you're right on the C heads being a step down from the ECZ-G heads. The G heads were an improved head for 57 312s. The best 312 by the way, as they "de-tuned it from 58 on up. The G heads had the 1.92 intakes, 69 cc chambers and better ports. They used them with a better distributor, bigger exhaust manifolds, and an improved intake and carb on the 57 312. A person wants to check every 57-58-59 Y-block tho because they came on some 272s in trucks in 57 and early 58 with 2 bbls, also 57 early 58 Ford, and 57-58 Merc, and 57 T-birds with 2 bbls and 4 bbls.. They were also the head on the 57 270 horse dual quad engine. Some of these heads also had the ECG rockers on them. These were 1:54 instead of 1:43 ratio. Be careful if you try to use these rockers on 292 heads because on some heads they cause coil bind. But, the ECZ-C head is a great head also. Oh yeah, G heads comp. ratios are: 272 = 8.6, 292 = 9.0, and 312 = 9.7 advertised.
Racerron, those C heads were used on 56 272 2bbl pickup engines.

[Y-Blockhead]

ALL '57 heads were "G" heads with the 1.92 intake, not just the 312's. Except the heavy duty truck heads and the supercharger heads.

[Bill Steiner]

It is out of a 1956 Merc 312. You can tell by the Carb and Dist. It was there high performance eng with that Carter carb . The other eng in 1956 used the SO Called teapot carb.

[Hot Rod Reverend]

This is definitely a 1956 Merc 312 engine. EZC-C head was only on the 56's... and didn't 56 Mercs only come with 312's? The motor looks original, down to the cannister oil filter setup. A lot of those got changed out.