As I recall, Mercury used the 312 longer thatn Ford did, Does anyone know for sure? We have a 60 Merc sitting in S.D. that is supposed to have a 312 and a 3 speed stick in it, was Merc still using them in '60? I might go haul it home just for the motor and ****** if it's a 312. Thanks, Tom
Ford used them from 56-57 in cars, same with TBird. Merc used from 56-60 and went back to the 292 in 61. They were never offered in Edsel. In 63-64 factory replacement 312's were installed in selected trucks, primarily fleet purchases in mountain states. These were listed as 292 on the data plate. Ford never threw anything away.
That's about what I remebered but can't really rely on my memory anymore. So, this thing probly really is a 312 eh? Thanks, Tom
[ QUOTE ] As I recall, Mercury used the 312 longer thatn Ford did, Does anyone know for sure? We have a 60 Merc sitting in S.D. that is supposed to have a 312 and a 3 speed stick in it, was Merc still using them in '60? I might go haul it home just for the motor and ****** if it's a 312. Thanks, Tom [/ QUOTE ] The Monterey came with a 312 as their base engine in 1960, with a 383 as an optional upgrade... The Montclair, Park Lane and Colony Park had 430s standard. Hope this helps...
I'mnot sure of the model, but it is a base 2 dr sedan, nothing fancy so it probly is the 312. Thanks again, Tom
Here's what I know about Y-block's: --heads cast ECZ-G are 312 heads and have much larger ports (and presumably valves??) than 292's. --ECZ-G heads are actually somewhat common (not really, but you can find them if you look) on truck engines, even in the early '60's. Never figured that one out, other than perhaps these were service replacement heads or perhaps truck guys asked head shops for these when doing an overhaul. Who knows. --292 blocks have a stronger bottom end and Y-block racers prefer 292 blocks when they get into the ******** level. --Y-blocks have funky intake ports and two bolts on top of the valve covers. I know nothing else. Honest.
--heads cast ECZ-G are 312 heads and have much larger ports (and presumably valves??) than 292's. In reality, ECZ-G heads were stock on any 272, 292, 312 in 1957 and many in 58, 2 or 4bbl. All heads 1957-9 had the largest valves of the Y's at 1.92", the difference between the -G and others those years is chamber size. Also 1956 had some nice heads, I especially like the ECZ-C for a truck or any vehicle where you want no problems with 87 octane and dont need the 5000 rpm+ breathing capability of the -G. ECZ-G can be octane tempermental on a bored, zero decked block and with a cleanup head shave. As with the flathead the Y Block enjoys a wide range of parts interchangability over the full 239 thru 312 production range. Also as with a flathead there are a few caveats! With many 312 blocks having crack problems due to wrong mains torque specs in Motors Manuals many are regrinding 312 cranks to 292 mains and using the 292 block. The 292 can easily be bored to well beyond 312 size and are readily available as they were installed 1955-64 and replacement blocks were produced into the 70's. Most 272's can be bored the same.
Hey, Thanks a lot guys, I think I will go bring it home and have a look at it. It might be a nice Dakota car for someone, otherwise some nice parts maybe and a neat driveline. Will let everyone know if I get it back to Wisconsin. Tom
The best way to tell if it is a 312 is to look at the flywheel end of crank where the indent is on the crank the 312's have a litte "***" or bump.
The best way to tell if it is a 312 is to look at the flywheel end of crank where the indent is on the crank the 312's have a litte "***" or bump. That doesnt always work. Replacement engines and cranks are marked just like a 292 or are plain round flanges. The only true ID is to drop the pan and look for ECZ mains caps.
Also can pull a plug, use a dowell rod and roll the engine to measure the stroke. 312 stroke = 3.44" The 272 and 292 stroke = 3.30
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