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Denso alternator swap
#140969
10/24/08 01:04 PM
10/24/08 01:04 PM
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Joined: Apr 2003
Posts: 512
Sacramento, CA
Bdrainy
OP
mopar
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OP
mopar
Joined: Apr 2003
Posts: 512
Sacramento, CA
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I am considering doing to denso alternator swap and was looking at the info in the tech archives from AndyF. I see that the kit is sold through mancini to mount it, but looking at the picture the mounts look the same as whats on my 383 now. Is the denso a straight bolt on, or do I need to change the mounts? The picture may just be tricking me, but they look exactly the same to me... http://www.moparts.org/Tech/Archive/elec/34.html
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Re: Denso alternator swap
[Re: Bdrainy]
#140971
10/24/08 03:23 PM
10/24/08 03:23 PM
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Joined: Mar 2005
Posts: 862
Iowa State fan
kilroy
super stock
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super stock
Joined: Mar 2005
Posts: 862
Iowa State fan
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I dont know about anyone else, but I put an denso IR alt. off a toyota prerunner and just bolted it up to the stock mounts! Cant remember if I shimed it or not but it fits great.
1973 Charger, former SE, former auto
I'm not trying to be difficult, it comes naturally....
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Re: Denso alternator swap
[Re: Lefty]
#140973
10/24/08 04:42 PM
10/24/08 04:42 PM
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Joined: Dec 2007
Posts: 7,759
So Cal
HealthServices
Why would you even post that?
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Why would you even post that?
Joined: Dec 2007
Posts: 7,759
So Cal
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I love how clean your engine compartment is but I do question the location of the fuel filter...
Possible fire hazard on top of the alternator like that.
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
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Re: Denso alternator swap
[Re: kilroy]
#140976
12/25/08 05:10 PM
12/25/08 05:10 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
I dont know about anyone else, but I put an denso IR alt. off a toyota prerunner and just bolted it up to the stock mounts! Cant remember if I shimed it or not but it fits great.
 Mine too.
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Re: Denso alternator swap
[Re: rcannon440]
#140977
12/25/08 06:17 PM
12/25/08 06:17 PM
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Joined: Jan 2004
Posts: 5,476
340dart4spd
Parts Problem
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Parts Problem
Joined: Jan 2004
Posts: 5,476
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Quote:
What amp Denso Alternator did you use?
60 amp..here is what i have
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Re: Denso alternator swap
[Re: MoparforLife]
#140978
12/25/08 09:38 PM
12/25/08 09:38 PM
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Joined: Jan 2004
Posts: 3,001
Coram, NY
Pool Fixer
master
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master
Joined: Jan 2004
Posts: 3,001
Coram, NY
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Quote:
Quote:
I dont know about anyone else, but I put an denso IR alt. off a toyota prerunner and just bolted it up to the stock mounts! Cant remember if I shimed it or not but it fits great.
Mine too.
me too. except I used one off an 02 dodge ram van, 130 amp. I did have to trim one spacer, though. took about 5 minutes with a dremel.
It's a long read, but it shows how I did it and what parts I used. I was into the whole thing for under 150. but I also bought stuff to go from single to dual field:
http://www.moparchat.com/forums/showthread.php?t=61642
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Re: Denso alternator swap
[Re: Bdrainy]
#140983
12/26/08 10:33 PM
12/26/08 10:33 PM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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I needed more amps too, but took a different route. I had my squareback, dual-field alternator's stator rewound and heavy duty diodes installed at the local alternator shop for under $200.
Of course it bolts right up to the stock mount and looks bone stock for a 1970. It puts out 70 amps at idle and just over 125 amps above 2000 rpm. I upgraded the wiring and did the bulkhead/ameter bypass sugested in the article on Alpar.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Denso alternator swap
[Re: Pool Fixer]
#140984
12/26/08 10:36 PM
12/26/08 10:36 PM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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 90a Denso Stock brackets Stock heads Only modification was to trim the stud on the back.  Just how it worked out for me on a Small Block. I would still like to get my hands on a smaller pulley for this alternator..or a larger crank pulley. We'll see, may be serpentine on a magnum block soon enough. But the charging at idle with 90w H4 lights on, stereo, electric fuel pump, and my fan pullin 25-30a...it's not quite enough at idle. http://www.goodysgotacuda.com/DensoUpgrade.html 
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Re: Denso alternator swap
[Re: Pool Fixer]
#140985
12/27/08 12:17 AM
12/27/08 12:17 AM
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Joined: Jan 2003
Posts: 31,023
Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,023
Oregon
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Quote:
small blocks are tight with stock heads and a stock alt. I was at a friends shop and he had an cuda with a small block and eddy's. he had to shave the head to get the stock alt to fit. Denso? forget it on that one. that is a situation where you need special brackets. I think they ended going with something out of a ford. could have been a denso, don't know.
Actually the Denso 60 amp alternators fit better on a SB Mopar with Edelbrock heads than do the original type alternators. A SB with Eddy heads is a great candidate for a Denso swap.
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Re: Denso alternator swap
[Re: SRT8Challenger]
#140987
12/27/08 01:19 AM
12/27/08 01:19 AM
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Joined: Nov 2004
Posts: 25,050
Texas
GoodysGotaCuda
5.7L Hemi, 6spd
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5.7L Hemi, 6spd
Joined: Nov 2004
Posts: 25,050
Texas
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Quote:
Goody, that is one clean shop you have there!Looks great! Nice and tidy, no wires hanging!!
ED
Why thank you,
Now I just have to get around to welding up the holes and smoothing the bay up some.
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Re: Denso alternator swap
[Re: GoodysGotaCuda]
#140989
12/27/08 07:19 PM
12/27/08 07:19 PM
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Joined: Jan 2004
Posts: 5,476
340dart4spd
Parts Problem
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Parts Problem
Joined: Jan 2004
Posts: 5,476
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Quote:
90a Denso
Stock brackets
Stock heads
Only modification was to trim the stud on the back.
Just how it worked out for me on a Small Block. I would still like to get my hands on a smaller pulley for this alternator..or a larger crank pulley. We'll see, may be serpentine on a magnum block soon enough. But the charging at idle with 90w H4 lights on, stereo, electric fuel pump, and my fan pullin 25-30a...it's not quite enough at idle.
http://www.goodysgotacuda.com/DensoUpgrade.html
I would worry more about that kink in the upper radiator hose!!
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Re: Denso alternator swap
[Re: AndyF]
#140990
12/28/08 01:55 AM
12/28/08 01:55 AM
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Joined: Jan 2004
Posts: 3,001
Coram, NY
Pool Fixer
master
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master
Joined: Jan 2004
Posts: 3,001
Coram, NY
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Quote:
Quote:
small blocks are tight with stock heads and a stock alt. I was at a friends shop and he had an cuda with a small block and eddy's. he had to shave the head to get the stock alt to fit. Denso? forget it on that one. that is a situation where you need special brackets. I think they ended going with something out of a ford. could have been a denso, don't know.
Actually the Denso 60 amp alternators fit better on a SB Mopar with Edelbrock heads than do the original type alternators. A SB with Eddy heads is a great candidate for a Denso swap.
the stock alt i saw was very very close to the eddy head on that small block. since my denso is closer to the head than my stock one was, I assumed they were fatter/deeper...my bad...i thought that most of the denso alts you see were physically the same size, but built differently inside for different amp ratings.
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