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By Michale G. Cook - 11 Years Ago
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Hey guys I have an opportunity to get my hands on a 1982 302 engine with complete drive train, my question is how big of a job would it be to replace my 272 y-block and drive train , what kind of major hurdles would I be looking AT TO MAKE THE REPLACEMENT and or would it be worth it, the 302 is in a Mercury and has 32 k miles on it.
Comment appreciated.
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By ponymare - 11 Years Ago
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Motor mounts would be one, might need to do something with the trans mount, and drive shaft, change to 12v. Might have to change to a front sump pan, but a few weeks ago I saw a 351 w in a 56, looked like there was plenty of room.
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By miker - 11 Years Ago
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I think you'll find lots of info on that swap either at the Ford Barn or the HAMB. Unless your 272 is really tired, or the 302 is a hp version, I doubt you'll see any increase in performance.
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By paul2748 - 11 Years Ago
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You certainly asking the wrong group this question.
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By 56_Fairlane - 11 Years Ago
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I dunno but anything except a Y-block looks out of place in a 8th or 9th gen full sized Ford.
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By slumlord444 - 11 Years Ago
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There is all kinds of room because the 302 is smaller. A matter of mounts mainly. Possible driveshaft mod. Problem is that the 302 has less torque than the 272. I would go with a 292 or 312. Works better with a car as heavy as yours. 302 is great in a light car like a Mustang.
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By Lou - 11 Years Ago
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Go to the Ford Nationals in Carlise, PA .you will see 10 to 15 y-block Fords that have been repowered with later model engines for sale. In most cases the asking price will be less than the cost of doing it yourself.
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By Daniel Jessup - 11 Years Ago
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this is the "y blocks forever" site lol... most of us here and going to be telling you to keep your Y block.
However, we can certainly understand the idea --- replacing/rebuilding a Y block can be a real expensive task depending on the expertise (or lack thereof) of your machinist, what parts you need, etc. The 1952-59 Ford Hamb Social Group has quite a few guys that are more knowledgeable and have done the swap successfully. I would suggest you post this same question there.
Whatever you do, promise us you won't go with "scrub" !!! 
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By charliemccraney - 11 Years Ago
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Unless you just need a drivetrain to get the car on the road and the 1982 302 is the only option, don't bother with it. 302 were dogs until the roller cam, fuel injected versions came out in the mid 80s (1985, I think). At best that swap will be a step sideways, but most likely a step back from what you have. Sure, you can modify a 302 easily but the cost of the swap plus the modifications probably won't be worth it and can be better spent on getting that 272 running a little better.
You will have motor mounts, transmission mounts, drive shaft, plumbing for fuel and coolant hoses, throttle linkage, transmission actuation (shifting, kickdown, maybe clutch), wiring and several other things that you never think about until you're doing it to take care of. That's a lot of work (or money if you have to pay someone) for a step sideways at best.
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By steinauge - 11 Years Ago
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I would think you could freshen up your 272 for less money?Certainly less trouble.
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By Y block Billy - 11 Years Ago
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Stick with the Y, It belongs there, much less trouble, more torque and you wont regret hacking up a nice old car in the future!
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By PF Arcand - 11 Years Ago
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The only advantage to using a 302 is that it's lighter & newer, so it's easier to get parts for.. other wise it's a negative.
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By junkyardjeff - 11 Years Ago
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I have a 351-W in my 55 at the moment and it seems like the 272 had more bottom end torque then the 351 does,the dipstick that built the 351 stuck in the wrong cam. I am getting all the parts to put a 292 in it eventually and use the 351 for another car.
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By 2721955meteor - 11 Years Ago
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302 into 55 ford
I dont think you have thought this threw,ys are not that expensive to rebuild if you use your gray mater above the neck.bore the 272 to 292 set of pistons molley rings ovhaul gaskets,reground cam(57 312 profile), refaced lifters.etce you get som 56 heads,do your own asembly,i can build 1 in canada for 2000 cn, that will out perform a early 302.just dont get caried away with info frome sources that are not in tune to what you want to wind up with. like 302s with roller cams ,expensive heads but with the conversion you are not saveing any gold,especialey when you look at resale and asociating with guys who are in no mans land. if you want power buy a twin turboed eco boost frome a wrecked truck or mustang. thenyou will have atentionbeyond a nice running y. to have a 55ford with a strong 292 with 4v carb later ign.you will give a stock 66 mustang 289 a run for its money .
just think you should re think you direction ,good luck in what ever way you go
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By Small block - 10 Years Ago
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steinauge (11/6/2014)
I would think you could freshen up your 272 for less money?Certainly less trouble.
if you were going to go to the trouble to make the swap to the W engine I would recommend the 351, the W series engine has the same bore spacing as the Y block and a lower deck hight so other than oil pan to fit the cross member and engine mounts the 351 w engine should fit any were the Y block does! Like has already been stated the 302 is ok in a lite high rpm application but has low torque!
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By Small block - 10 Years Ago
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it is to bad ford wouldn't have put the 292 crank into the 289 to block with a .030 over bore to make a 338 ci engine like Shelby did for his race Cobras and Jack Roush did for the 1979 Indy Pace car!
This was not the simplest thing to do but it put some torque into the 289!
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