1941 engine replacement

Ok, I have a 1941 Plymount Sedan what engine would be a fairly simple drop in for this car. My plan is to keep the outside of it stock but update as much as I can other wise.

Thanks

Carmen

 

Well, I am not sure about a Plymount, but if it looks similar to a Plymouth the you could use a Dodge-Plymouth 218 or 230...

Check with the guys over at www.p15-d24.com to see if there are any specific pitfalls, but most any 23" engine should be a one-for-one swap.


Oh, Welcome to the Hamb

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There have been several threads lately about swapping various engines into old Mopars. The most recent is “SBC in early 50's Plymouth?” 1940s and -50s Plymouths have a lot in common, so much of the information would apply to your ’41, too.

To summarize: Obviously, another Mopar flathead six would fit with no modifications. Those are good engines and quite a bit of bolt-on speed equipment is available for them. There have also been several threads about modifying those. Some small block Mopar V8 engines will apparently fit without much modification (although I don’t personally have any experience with that). There are at least two ways to install small block Chevrolet engines in Mopars of that era without significant ch***is modification. You would think Ford small blocks would fit better, because they are narrow, but apparently the forward sump interferes with the steering components. Likewise, the Mopar slant-6 apparently does not fit well. ... And there’s guy in Australia who is putting a Ford flathead V8 into a ’41 Plymouth.

So, search around and I’m sure you will find the information you are looking for. And, of course, ultimately, anything will fit in anything.

 

arthur, you can get rear sump pans for the SBF. put one on the 302 we dropped in the model A we built for my mother.....

 

i have a buddy with a 52 dodge we put a 360 sbmopar in 4 speed with just afew modifications aother buddy as a 46 plym with a dodge flathead 6 fits good and aother with a 50 plym with a sbc in it he says was a easy swap so i would say you have alot of chioces my choice would be sbc but that,s just my 2 cents plan what you want out of the car and pick what you like and good luck with what ever your chioice is

 

Revkev6: that's good to know because, otherwise, they are very compact engines that should fit where others don't. Do you know what applications those rear sump SBF parts come from? I am not very familiar with modern (i.e. OHV) Ford engines.

 

I put a chevy 350 in my 1941 plymouth it was easy the only major mod i had to do is building custom header for drivers side

 

Since the oil pump is mounted directly under the distributor in a small block ford, the depth there is more than a SBM or a SBC. The "rear sump" pan actually has a small front sump. This is very common, as it was used in the Fox body ch***is (Mustang, Fairmont. 80s LTD).
<---Front




I'd suggest a SBM, the work is the same, a 318 is almost as easy to find as a SBC, and the resale is better. I'm mopar-centric, though.
Read this
http://shadowmtkustomz.blogspot.com/

 

54 Chrysler 6

 

Sorry guys...
V-8's, regardless of make/model, are not simple drop-in deals.
You will need: new trans, new rear axle, new 12v starting system, new radiator.
Now with a lot more 'go' you really need more 'whoa', so better brakes up front are needed to match the new rear.

The only simple drop-in is another 23" six, and with a little bit of fussing the 25" will work.


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Of corse all that is extranious to how simple it is to drop in. Getting the car ready to go would involve the mentioned items!

 

73RR, I agree that a hopped up flatty 6 would be the easiest. It would be great if the OP went that way. I'd still consider a suspension rebuild and a brake update.
The next step up would be a gearbox and rear swap. This would allow freeway cruising and keep an E brake, while moving up on the U-joints, flanged axles and rear brakes. The next level from there would be the V8 swap, WITH all the previous mentioned items, 12V and cooling upgrades. The 12V would require gauge and lighting changes or modifications.

The OP said " what engine would be a fairly simple drop in for this car. My plan is to keep the outside of it stock but update as much as I can other wise. "
so what he considers "simple" and "update as much as I can" can be open to interpetation.

 

I'll be dropping a 392 in my 41 Plymouth.(had 350/400 previously) It's at the mock up stage now, don't see any clearance problems so far. I'm goin to start on the front end in the coming months, maybe this will present a headache. Only time will tell.

 

1978 Chevrolet inline 6 250 still working on it

 

This is the engine on the car, I fabricate my own motor mounts and the fan shroud too, still a lot of work to do but keeps me out of trouble and I sure enjoy it