312 y-block carburation ?

I've never put together a y-block for my own use, but i picked up a parts truck with a fresh! 312 rebuilt motor. seller had receipts for everything. a guy has a "edelbrock 6x2" on that auction site. do i have to use 97 type carbs? can this be run with a mild cam motor. or do you have to go nuts with springs,cam etc? i'd like to keep costs down and run the motor "as-is" i do have receipts showing new rocker ***ys,push-rods,springs. cam specs are listed as 270 degrees x 410 no brand name.

 

is this thing on?

 

The best thing to do is block off the outer four carbs and run the two center ones. You can use the cheaper 94's.

 

Pardon my ignorance, but by "blocking them off" do you mean putting a thin plate between the carb and manifold? i'd like the linkage to be hooked-up so it at least looks like all 6 are working.

 

Yup progressive linkage and set them up like they're working, its not rocket science. Unless its got a monster cam, six twos is a lot of carb. running them fake is common, and having them look real is just as common.

Just some fuel for thought...

 

Sweet! thats why i'm really thinking about this intake set-up. it just looks sooo *****in! the motor even has the ram-horn ex mans. i might be able to mooch a pair of t-bird valve covers from a buddy that has some hanging on the wall. not looking to make a drag motor out of it, just something that would be period looking.

 

Keep us posted on your 6x2 y-block set up. I'm doing one myself for a 57 Ford Custom 300. I just got the manifold (log-type) and carbs (94's) last week. It might be the 4th of July before I'm done, I'm still rounding up parts for it.

 

YES, and run linkage and a blocked off fuel line to them.

 

Also, if you're running clear fuel lines, blocking the gas off at the carb, albeit it slightly more "dangerous" makes it look even more like you've got all six hooked up. The only give-a-way will be the puddle of gas on the two middle carbs!

 

First things first, i'm gonna try and score the manifold. I'll probably try and "de-tune" the carbs some. it'll be backed by a top-loader i got laying around. my buddy thinks that the cam might work ok. if not he claims i should be able to pick a slightly hotter unit that'll fit with-out major mods. AND! he offered up his t-bird covers this is all pretty crazy, i don't even have my tudor done yet. but i've always wanted one of these motors & i think i can scrounge up the makings of a nice little bucket pretty cheap. Pray for me jebus!

 

Rad, a 292/312 is strong enough to pull around any old Ford. You still may find that there is just too much carb with all of those 94's, but you can always pop the carb off and put a plate underneath and be done with it after the fact. Congrats on the t-bird rocker covers! I might buy a set, but I've already got an offy set, so I'm at a cross roads.

Seriously though, congrats!

 

What's it going into?

 

thats the sad part, i don't have so much as an extra frame right now! but i know some guys that should be able to set me up without spending a fortune. i think it would look good in a little bucket. it would be my first "open" car.

 

I just setup a log style cross ram 6 deuce on my sbc, edelbrock x1 piece. I first tried to block the centers and run the outers. It was real difficult to deal with and the pressure to apply the gas pedal is unreal. Now I have the outer four blocked under the carbs, and since I am running chromed hard lines, I blocked the fuel from the fuel log to those carbs to prevent more opportunity for leaks. I have the linkage running all in sync and I did pull the outer four carbs accelerator pumps and springs out. It made for a lot lighter pedal. By the way my carbs are the Holley 2100 - 94's. If you p*** on this setup let me know. I have a model a with this x1 on it, a 33 ford pu with 3 strombergs, and a 40 chev soon to be running a twin one barrel setup, The 6 setup you are talking about would go great on my 59 edsel 292. I love the multi carbs.

 

congrats on the Y man.. I'm puttin one together myself right now.. Do yourself a huge favor, though, and verify that it really is a 312.. There is no way to tell the difference between a 292 and a 312 just by looking at it.. Pull the pan and check the casting #'s on the main caps.. They should say ECZ if it's a 312.. Unfortunately alot of 292's are p***ed off as 312's when they're sold

 

Thanks for the tips. it would be cool if i could get it to run nice with all 6 functioning. i like hardline on fuel supply. never thought about the extra drag from the pump ETC. i'm gonna go as hard as i can on this. aren't EDSELS the "MEL" type motors?

 

you could get them with a straight six, a Y, or an MEL..

 

You're right of course. it's like the whole "it's got a vette motor" syndrome all the receipts refer to it as a 312, but i'll sure check casting numbers. looks like the stock 4bbl intake is worth a little bit. i can sell it and the aircleaner, throttle bell-crank etc. to recoup some of the cost for the new intake. what should a guy have to pay for good core 94 carbs? anyone, buehler? buehler?

 

I did not know that! i learn something everyday on this site. as a side note my pal with the t-bird v/c set has a 3x2 AND! a 2x4 intake for "MEL" motors. they sure look different from a standard "FE" intake.

 

did the truck have the granny-geared four speed?

 

What I've read, the 292 are better because the journals were thin on the 312's and cracking was common. Plus... you could take the 312 crank and mill it down to fit the 292.

"Then there are the crankshaft issues. The 312’s crank had main journals that were 1/8-inch bigger in diameter than the previous 272 and 292 engines, but widening that radius removed just * enough metal to cause cracking problems between the main bearing bores and the main bolt holes. Ford’s original fix was to back off the main cap torque spec from its original 145 lb-ft to 95, which helped. Ford also changed the design of the main bolt, going from a 25/8-inch bolt with a lock washer to a 3-inch bolt with no washer. This extended the reach of the bolt into a meatier part of the block, and the cracking issues were solved.
Carlisle’s favorite Y-block combination is a 312 crank in a 292 block. That requires turning the mains down to fit the 292’s bearing supports, but the result is a stroker crank that can use the 312’s shorter rods but doesn’t have the 312’s block-cracking problems.
There’s another factor to consider: There are forged truck cranks available for the 292, but the 312s only had cast cranks, as they were never intended for truck duty. So if you’re thinking about forced induction or nitrous, you may want to opt for the steel 292 crank for extra beef in the bottom end."

 

Automatic. it's a fully optioned custom cab. i wanna get it fired and check out a few things. just got it the other day & the ol boy was putting a lot of work in it. ****** LOOKS fresh, but i haven't found any reciepts for it. if it's good i'll hang onto it.

 

there is some debate about the reason for the cracking.. Ford mistakingly listed the torque specs for the main bolts at 115 (i think) ft/lbs in the earlier years.. this was corrected to 80-90 ft/lbs later and it seemed to solve the problem

 

sweet.. maybe when i get my Y powered rod put together i'll make the three hour drive up I-5 and come check yours out!!

 

oh and about the 94 cores.. here's two up in your neck of the woods

http://portland.craigslist.org/wsc/pts/1595104976.html

 

I like the bit about the chrome valve covers and intake available for $165. Those are the $25 chrome valve covers that you can get almost anywhere.

 

yeah i thought that was pretty cute too.. i have a set of those with the Thunderbird Special logos on them that i got for free

 

I don't know, 250.00 seems steep for a ****py adaptor and 2 core carbs. don't get me wrong, thanks for the heads-up, but i've gotta score the intake first anyhow.

 

This guy John...knows a thing or two about Y-blocks.
That and he is probably one of the most patient individuals I know!!
http://www.ford-y-block.com/

 

yeah considering that adaptor is only $60 brand new and around $50 seems to be the going rate for a core 94..