Poly 318 year interchangeability

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Picked up a poly 318 out of a 1967 coronet(?). That's what my friend said.

So now I have the motor. What vehicles does it fit? When did they stop the front engine mount deal?

Last question. Will this poly fit in a 59 coronet? Or does the 59 have the front mount?

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I don't believe any Mopar V-8's used the front mount, only the flatheads, and I'm not sure they still were by 1959. At any rate, the early poly 318 blocks used cast-in ears on each side of the block. The earliest poly mounts were different, but by 1959, the V-8 mounts for A and B V-8's were a cup that bolted with a bracket to each side of the block that fit over a rubber solid tube looking thing that bolted to the front crossmember. The rubber part was not physically bolted to the block in any way; the weight of the motor and the angle of the cup/rubber kept it together. Sounds weird, but apparently it worked.

I'm sure you could rig up brackets to use the later mounts, but if you could find the early cup-style motor mount brackets, they will bolt up to a later 318, and the rubber biscuits are still available. With them, you could bolt in a later poly 318 to a 59 chassis.

Transmission is a different matter. A 59 poly 318 transmission won't bolt up to a 62 or later poly 318. Besides the extended crank flange issue, the bolt pattern on the back of the block is different. You can use a later transmission with the later motor, but you'll have to fabricate a trans mount. If you use a later pushbutton trans, the 59 pushbuttons will work if you use a later cable, assuming your 59 was originally a Torqueflite, not a Powerflite.

Here's a pic of the back side of a pre-62 poly 318:

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The top four holes [of the 61-earlier] will line up but the bottom two holes on either side of the block, along with the dowel locating pins are different than the 62-66 Poly 318 engines and all LA engines.

Third, the starter location on all the aforementioned Poly engines is different, positioned approx.between four and five o' clock vs. the 62-66 Poly 318 engines and all LA engines. The 62-66 Poly 318 enignes and all LA engines starter location is closer to the block; approx. the five o' clock postion.

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Picked up a poly 318 out of a 1967 coronet(?). That's what my friend said.

So now I have the motor. What vehicles does it fit? When did they stop the front engine mount deal?

Last question. Will this poly fit in a 59 coronet? Or does the 59 have the front mount?

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The crankshaft flange length and converter are different from 1962 and later than the pre 1962 cars. I had a 1959 Coronet, it had a 326 C.I. motor (one year only ) that was identicle to the same year 318 in the Plymouths, my Dodge had a two speed Powerflyte trans in it If you want to use that motor in that car plan on using a later moddle 727 or 904 automatic instead of the early cast iron case Torkflyte or Powerflyte trans

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I must be on a bunch of "ignore this user" lists, because it seems like every time I post, someone else will the post the same info later.

I own a 59 Coronet. Was originally a 326/Powerflite, now a 1964 Chrysler 413 with a 62 Chrysler Torqueflite worked by a 59 Dodge Torqueflite pushbutton setup and a 63 Chrysler shift cable. Have factory 1959 Chrysler motor mounts/brackets up front, and the original 59 Dodge trans crossmember with a 64 dodge trans mount extension welded to it that holds a 64 Dodge trans mount. E body 8 3/4 rear.

The 62 Chrysler trans has a parking brake drum setup on the back of the trans like the 61-earlier trannies did, but I had to use a 56 Plymouth backing plate for the 59 park cable to work on the 62 park brake.

I thought my experience with my own 59 Dodge as well as my 56 Plymouth with a 277 poly and Powerflite would give me some insight into the OP's question, but maybe not.

Carry on.

PS: 1961 was last year for Powerflite.

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Not on my ignore user list

I'm on my phone, so pictures don't always load. I have to reload a few times to see all the pics.

Thanks for the pics of the blocks and mounts and especially your coronet

Mine was a 4 door hardtop. After getting the 56 buick, it only makes me want a 59 coronet more. Just hoping I had a motor I could have used so I can find a body.

Thanks 413coronet