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Denso alternators on big blocks #1972271
12/18/15 06:15 PM
12/18/15 06:15 PM
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rftroy Offline OP
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rftroy  Offline OP
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I'm looking into options for mounting a Denso alternator onto a big block in my 70 Challenger.
Andy has a kit for the Toyota alternator, but that alt. only seems to come in 60 A form.
Is there another, higher amp rating, model that anyone knows of that will fit Andy's bracketry?

What other options are available?

Robert


AAR 4-speed 3.91, Tor-Red;
70 440 6 pack Roadrunner 4-speed 3.54, Plum Crazy;
68 Formula S conv 383 4-speed 3.23, Electric Blue;
69 Barracuda conv Slant 6 OD4 2.94, 71 B5 Blue;
78 Lil' Red Truck, Red;
70 Challenger S/E. 505 6 pack, Passon 5-speed, 3.55, B7 Blue
Re: Denso alternators on big blocks [Re: rftroy] #1972330
12/18/15 08:53 PM
12/18/15 08:53 PM
Joined: Jan 2003
Posts: 4,396
The Pale Blue Dot
Skeptic Offline
master
Skeptic  Offline
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The Pale Blue Dot
I bought a kit from Mancini that Andy makes for a large Denso alt. This was a couple of years ago, so I'd check there. HTH, Steve

Re: Denso alternators on big blocks [Re: rftroy] #1972400
12/18/15 10:31 PM
12/18/15 10:31 PM
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Posts: 360
Ohio
shorthorse Offline
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shorthorse  Offline
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Ohio
Companies like Powermaster have several high output Denso alternators. They have internal and externally regulated models. I bought my bracket from Mancini. The stock Mopar top bracket still fits but the bottom adjuster bracket is what's really different. It's got a different arch due to the smaller diameter of the alternator.

Alternator sizes.JPG
Re: Denso alternators on big blocks [Re: shorthorse] #1972408
12/18/15 10:45 PM
12/18/15 10:45 PM
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rftroy Offline OP
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rftroy  Offline OP
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shorthorse,

Thanks! That is exactly the information I was looking for.
I put a Denso on my slant 6 car, and I had to mill down the mount a bit to get things lined up. Quite a pain surveying the engine.

I have the 120 A Denso with a v-groove pulley from a Dodge truck. With these drawings, I should be able to figure what modifications to make to brackets without another cumbersome survey.

Bob


AAR 4-speed 3.91, Tor-Red;
70 440 6 pack Roadrunner 4-speed 3.54, Plum Crazy;
68 Formula S conv 383 4-speed 3.23, Electric Blue;
69 Barracuda conv Slant 6 OD4 2.94, 71 B5 Blue;
78 Lil' Red Truck, Red;
70 Challenger S/E. 505 6 pack, Passon 5-speed, 3.55, B7 Blue
Re: Denso alternators on big blocks [Re: rftroy] #1972411
12/18/15 10:49 PM
12/18/15 10:49 PM
Joined: Jan 2003
Posts: 1,803
Greer, SC
TooMany62s Offline
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Posts: 1,803
Greer, SC
Can anyone tell me if there's a two groove pulley Denso?

Re: Denso alternators on big blocks [Re: TooMany62s] #1972414
12/18/15 10:53 PM
12/18/15 10:53 PM
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Posts: 305
5th and plum
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redmist Offline
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5th and plum
Originally Posted By TooMany62s
Can anyone tell me if there's a two groove pulley Denso?


Here ya go!!!

I am running this with Andy's brackets, It's a 120Amp unit for a John Deere tractor, you have to just cut down the housing studs on the back and fits right in place! It's much deeper than a standard Denso, but everything else is the same.


Ryan

http://www.amazon.com/DB-Electrical-AND0...ator+John+Deere

Re: Denso alternators on big blocks [Re: TooMany62s] #1972420
12/18/15 11:05 PM
12/18/15 11:05 PM
Joined: Jan 2006
Posts: 360
Ohio
shorthorse Offline
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shorthorse  Offline
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Posts: 360
Ohio
Originally Posted By TooMany62s
Can anyone tell me if there's a two groove pulley Denso?


Pulleys are readily available in all different configurations for Denso alternators. Just check your shaft size. Some factory replacement units come with the matching pulley and some units are sold without a pulley. With some aftermarket units, you specify what pulley you want and they will deliver it as you requested. When replacing or installing a new pulley yourself, do it per the manufacturers instructions otherwise you can damage the armature or the brush mechanism. NO Hammers!







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