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'71 Mopar 383 HP Engine; $1,000 #3311266
06/13/25 07:52 PM
06/13/25 07:52 PM
Joined: Jan 2003
Posts: 14,795
Benton, IL.
D
DaveRS23 Offline OP
Master of nothing...
DaveRS23  Offline OP
Master of nothing...
D

Joined: Jan 2003
Posts: 14,795
Benton, IL.

'Price is FIRM.

This is an original unmolested 383 hp engine from a 1971 challenger. Pulled many years ago and stored to use later. Later never arrived for it. It’s extra right now and if I can get what I have invested in it back I’ll sell it.

If you have a 71 mopar that came with the high performance 383 engine and it’s MIA, this is what you need.

Comes as seen with its original distributor and exhaust manifolds. This was a low mileage engine pulled from a wrecked car but it has seized from sitting all these years. I have not attempted to free it up as I planned on having rebuilt if I were to use. May free up with a good soaking of rings but I’ll leave that to new buyer.

Located in Trenton IL 62293. Can help load.
'

www.facebook.com/marketplace/item/2460738170948133

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Master, again and still
Re: '71 Mopar 383 HP Engine; $1,000 [Re: DaveRS23] #3311286
06/13/25 11:16 PM
06/13/25 11:16 PM
Joined: Jan 2003
Posts: 27,774
So Cal
autoxcuda Offline
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autoxcuda  Offline
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Posts: 27,774
So Cal
I know someone that bought a 72 400 HP motor in same condition. hard to find 230 block. But it rotated. Paid $600 for it.

...had a cracked block. car was from back east

You are the one taking chances to find out why this 383-HP seized. Good luck with that !


Fall Fling 29 October 18, 2025 Saturday at Woodley Park, Van Nuys CA
300+ Mopars, 150+ swap, midway, Friday Malibu cruise,
Re: '71 Mopar 383 HP Engine; $1,000 [Re: autoxcuda] #3311312
06/14/25 09:21 AM
06/14/25 09:21 AM
Joined: Jul 2005
Posts: 787
SE Wisconsin, USA
RP's R/T's Offline
super stock
RP's R/T's  Offline
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Joined: Jul 2005
Posts: 787
SE Wisconsin, USA
If it was sitting in-doors, my guess would be it is ‘stuck’ as opposed to seized.
That is far more common if a motor sits
For as complete as the package is…seems like a deal to me.
Just my 2cents

Re: '71 Mopar 383 HP Engine; $1,000 [Re: RP's R/T's] #3311324
06/14/25 10:20 AM
06/14/25 10:20 AM
Joined: Jan 2003
Posts: 27,774
So Cal
autoxcuda Offline
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Posts: 27,774
So Cal
HP manifolds and HP valve covers are worth $600+
Intake $100

So I guess the worse you are going to be hurt is $300 or so. Common to get rust in cylinder.



Edit: That one picture has two distributors in it. Bottom one is not original. But top looks like probably is.

Last edited by autoxcuda; 06/14/25 06:06 PM.

Fall Fling 29 October 18, 2025 Saturday at Woodley Park, Van Nuys CA
300+ Mopars, 150+ swap, midway, Friday Malibu cruise,
Re: '71 Mopar 383 HP Engine; $1,000 [Re: autoxcuda] #3311341
06/14/25 12:55 PM
06/14/25 12:55 PM
Joined: Jan 2003
Posts: 2,875
541 slobovia
A990 Offline
master
A990  Offline
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Joined: Jan 2003
Posts: 2,875
541 slobovia
Originally Posted by autoxcuda
I know someone that bought a 72 400 HP motor in same condition. hard to find 230 block. But it rotated. Paid $600 for it.

...had a cracked block. car was from back east

You are the one taking chances to find out why this 383-HP seized. Good luck with that !

My first move would be unbolting the flexplate and go from there.

Re: '71 Mopar 383 HP Engine; $1,000 [Re: A990] #3311350
06/14/25 02:18 PM
06/14/25 02:18 PM
Joined: Jan 2003
Posts: 23,040
A collage of whims
topside Offline
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topside  Offline
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Posts: 23,040
A collage of whims
The seller would be wise to at least try to free it up, IMO.
I'd assume a rebuild of some degree is needed, but if it's welded up, that's not so attractive to me at $1,000.

Re: '71 Mopar 383 HP Engine; $1,000 [Re: topside] #3311358
06/14/25 04:08 PM
06/14/25 04:08 PM
Joined: Feb 2009
Posts: 3,852
New State
kidmopar Offline
master
kidmopar  Offline
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Joined: Feb 2009
Posts: 3,852
New State
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