Would it work??

[chargerkid01]

hey would a PRE- 1964 318 fit in my charger?? Will it bolt up to my 904??? Will the motor mounts work mine is originally a 318 car..

[Nacho-RT74]

do you mean a 318A, known also like POLY 318 ?

dunno, but maybe you'll find the answer here http://www.geocities.com/MotorCity/Track/4164/

[chargerkid01]

all I know is it was built before 1965. A guy walked up to me at the car show today and said he had a pre1965 318 engine for $200 it come out of a 60 plymouth pretty sure thats what he said. I was't really paying attention because I was talkin to another guy about his charger!!! the guy said it was bored out and had a mild cam. I want to check it out because he says it does run!!! let me know guys.

[The Kid]

Yea, that'd be a poly 318. I know there's some differences between them and an LA 318 but I would THINK that it would work. Not 100% sure though.

[MoParMetal]

not as many as performance parts for a poly as there are for the LA series

[chargerkid01]

is it a rare motor??? Would it be worth $200 if it is as good as he said it is?? I really need to know if it will fit though guy

[histoy]

If it fits, it would really look unusual when you open the hood.   The poly head 318 engines have a different head design compared to the LA engines.

[chargerkid01]

It would not be a permanent thing I have the original 318 for my car but it needs to be rebuilt. What I was getting at is if it will bolt up to my 904 and work with my original engine mounts I would buy to use temporarily until my 318 is built. It would get my car on the road a lot faster! Is it rare motor though??? I've never heard of a poly 318. Would it be worth $200 bucks??? And Will it fit I really need to know this question, I'm not being a smart A$$ or anything scrap is high where I live and this guy wants it out of his garage if he don't sell he is going to scrap!! Not only do I want a running motor but I'd hate to see another mopar piece of history distoyed

[histoy]

I placed your questions on the '62-'65 Mopar site, and one of the Poly experts there reports that it will swap into your '69 and it will bolt to your 904 transmission.

[73charger528cid]

well I'm not shure about the trans bolting up but I do no a little about polysphere motors. for starters they are whats is called a semi hemi and sertain yrs share the same block as a early hemi only diference being the heads and the rights yrs can be converted just by bolting heads and intake and some other things.

heres a link to a post on another site about it  http://www.hotrodders.com/forum/65-polysphere-semi-hemi-128406.html



heres some thing from anougther site.

In 1950 Chrysler consisted of four divisions; Chrysler, DeSoto, Dodge, and Plymouth. The pecking order or hierarchy between divisions being just about in that order. Of the four divisions, lowly Plymouth was the only one never to produce the early hemi. Their V8 production consisted of the "Poly" head (twisted wedge head) design. This is significant because the '55 and '56 Plymouth Poly head engines were based on the Dodge hemi block and these motors can be a very good source of parts for the early hemi enthusiast. Chrysler and Dodge produced poly head engines as well. Chrysler's 301, 331, and 354 polys and Dodge's 270, 315 and 325 polys can easily be converted to hemis by adding the proper heads, intake and exhaust manifolds. It is important to understand that polys can be converted to hemis only within an engine family. Chrysler polys accept Chrysler hemi heads, Dodge and early Plymouth polys will accept Dodge hemi heads. DeSoto never produced a poly head motor so DeSoto hemi heads won't work on anything but a DeSoto hemi. (The 325 ci. Firesweep Poly head motor installed in some 1957 DeSotos were actually Dodge motors built in the Dodge engine plant.)



One special note here. In 1956 Plymouth began production of a new series of wedge head motors. Although still referred to as Polys or new generation Polys these "A" series motors are actually more closely related to the later "LA" series. The "A" and "LA" motors share many parts between them but have little in common with the earlier version.

[73charger528cid]

Plymouth eventually produced 301, 303 and 318 ci. "A" motors while in 1959 Dodge began production of their own 318 and 326 ci versions. The latter being produced for only one year. "A" series motors should not be confused with the earlier Plymouth and Dodge poly head engines or the Chrysler Polys of similar displacement. Parts between the early Poly/Hemi design and new generation Poly generally will not interchange. Be very careful when searching for spare parts in the local wrecking yard and learn how to distinguish between the two. All Polys can be easily recognized by the scalloped lower edge of the rocker covers, however in the new generation "A" series Polys the scalloping is much less dramatic. More like a wavy line than a true scallop.



Note that in the Hemi design the valves are placed on opposite sides of the cylinder. The early Poly still has the valves more or less placed that way, however they have been moved much closer to the centerline of the cylinder. On the "A" series Poly head the valves are positioned on one side of the cylinder the same as the later "LA" series

POLY ID CODES
New generation "A" series Poly head motors are not included
in this chart since they have little in common with the early hemi.


Eng#   Year   Name/Make   CI   Comp   HP
WE55   1955   Chrysler   301   8.5:1   188
WE56   1956   Chrysler   331   8.5:1/9:1   225/350
LE57   1957   Chrysler   354   9.25:1   295
58S   1958   Chrysler   354   10:1   310
58W   1958   Chrysler   354   10:1   290
Eng#   Year   Name/Make   CI   Comp   HP
VT-334,336,338   1954   Dodge   241   N/A   N/A
VT-434,436,438   1955   Dodge   259   N/A   N/A
D55   1955   Dodge   270   7.6:1   240
D63-1   1956   Dodge   270   8:1   189
D63-2,D63-3   1956   Dodge   315   8:1   218/230
VT-534,536,538   1957   Dodge   315   N/A   N/A
KDS   1957   Dodge   325   8.5:1   310
L325/LD2   1958   Dodge   325   9:1   252/265
L8-D1,D2,D6,WS   1958   Dodge   315   N/A   N/A
Eng#   Year   Name/Make   CI   Comp   HP
P27   1955   Plymouth   241   7.6:1   157
P27   1955   Plymouth   259   7.6:1   167/177
P28   1956   Plymouth   270   8:1   180

 

my sourcse  http://hotrodsandhemis.com/

  I myself had a poly in my 65 Plymouth sport fury

[John_Kunkel]

Reportedly there is one bellhousing bolt located differently on the poly 318, other than that the 904 is a boly up.

[chargerkid01]

thanks guys this is the info I was searching for!! I'm going to call the guy later!!