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WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb?

Posted By: RUMBLON

WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/04/08 04:55 PM

Hey gang, I need some advise on several levels.

I am building a 38 Plymouth business coupe. I am using a Mustang 2 front suspension style via Fatman.

Right now it has a late model 8 3/4 in it that was there when I bought it. Its going to be a full fendered rig as I have all the parts, fenders, grille that are near perfect.

I now need to decide on what motor. I would love a 5.7 HEMI but I hear thats an expensive endeavor due to the wiring harness, ect. I planned on finding a salvage vehicle and pulling the motor, trans, computer ect.

The car will have electric windows, after market air and creature comforts. I want this to be a driver that can run cross country.

So that said, I keep hearing that a nice 360 is a LOT cheaper in all respects???

Can anyone give me some details on both, costs, what is available in the way of wiring for both, ect.

I am no wiring expert and will have some help from a guy who is not a mopar guy, but understands EFI, ect.

I dont mind spending a few more bucks, 2-3K to get the 5.7. running, and going but cant aford an outrageous cost difference when I know a nice built newer 360 will do the job and give me a nice RUMBLE when running.

any suggestions or advise is greatly appreciated. The car will more than likley also use a rack and pinion style steering.

Dave
Posted By: RodStRace

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/04/08 05:43 PM

talk to your law buddies and find out about local impound yards. See what donors are available and prices.
Posted By: Mopar Ron

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/04/08 06:10 PM

Dave, the most economical way would be a carbarated 360,then a small block stroker, then a efi 360 magnum then the 5.7-6.1 HEMI.
I hope to someday have a 5.7 or 6.1 HEMI in something for my wife,either the 34 phaeton delivery or a 70 challenger.

I think any of those would work well for a great cross country cruiser and reliable rod.

at the fall fling there was a 5.7 crate HEMI comlete,new and ready to go for $2,800. OBO

as more and more start showing up in the junkyards the prices will be coming down. its the wiring that has me holding back. Ron...




I found this place that has harness'
but I dont know how much the computer goes for?

http://www.hotwireauto.com/?page=sales-dcx

price list:
http://www.hotwireauto.com/?page=pricelist#Hemi



EDIT:
found some more info
it looks like the wiring harness is $995.
and a NEW computer is $650.00

if that is all you need to get one of these up and running I guess that's not to bad
Posted By: RUMBLON

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/04/08 06:48 PM

Quote:

Dave, the most economical way would be a carbarated 360,then a small block stroker, then a efi 360 magnum then the 5.7-6.1 HEMI.
I hope to someday have a 5.7 or 6.1 HEMI in something for my wife,either the 34 phaeton delivery or a 70 challenger.

I think any of those would work well for a great cross country cruiser and reliable rod.

at the fall fling there was a 5.7 crate HEMI comlete,new and ready to go for $2,800. OBO

as more and more start showing up in the junkyards the prices will be coming down. its the wiring that has me holding back. Ron...




I found this place that has harness'
but I dont know how much the computer goes for?

http://www.hotwireauto.com/?page=sales-dcx

price list:
http://www.hotwireauto.com/?page=pricelist#Hemi



EDIT:
found some more info
it looks like the wiring harness is $995.
and a NEW computer is $650.00

if that is all you need to get one of these up and running I guess that's not to bad




Ron, from that website is the following

5.7L Hemi with Standard Shift
5.7L Hemi with 545RFE Automatic
5.7L Hemi with 727 Automatic
5.7L Hemi with 500 or 518 Automatic
6.1L or 6.4L Hemi with Standard Shift
6.1L or 6.4L Hemi with 545 RFE Automatic
6.1L or 6.4L Hemi with 727 Automatic
6.1L or 6.4L Hemi with 500 or 518 Automatic
5.2L or 5.9L Magnum with Standard Shift
5.2L or 5.9L Magnum with Automatic Shift
Viper with Standard Shift
Viper with Automatic Shift


what trans combo is best for the 5.7 or 5.9?

Dave

any benefits or reservations for certain treans for a driver/
Posted By: RodStRace

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/04/08 07:03 PM

more info here, including measurements
http://www.hotrodlane.cc/
Posted By: bohmer2

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/04/08 09:11 PM

I have a 5.7L block and heads that I am hoping to build into a 392, the block and heads were cheap the stroker kits are still killers at ~3000 for the piston, rods, and crank.

Anyway, I was leaning towards running the 518 I have for the joy of overdrive and a higher rear gear. A cruiser I would consider either a 518 or a 545rfe for the overdrive aspect.
Posted By: Mopar Ron

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/04/08 11:07 PM

I agree, it all depends on what you want. I like the idea of a 5 speed stick. but the 518 makes the most sense.
also I like the 5 speed auto in my wifes 05 truck(545rfe I think) I would like to find a wrecked hemi truck and use the engine and trans out of it. Ron...
Posted By: poorboy

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/05/08 01:48 AM

If you buy a the engine & trans from a wrecked car or truck, get the computers and wiring as well. (get the fuel pump from the tank too.) Then you have the whole package that works. Gene
Posted By: B1arno

Re: WHICH motor 4 the 38 Plymouth, 5.7 or 360, EFI or carb? - 12/05/08 02:34 AM

I see 5.7 hemis, with trans, computer, and harness on craigslist from time to time for anywhere between $3,500 and $5,000. I was very close to going this route on my 34 coupe. The wiring was the thing that changed my mind. I wouldn't know where to start.
Arno
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