Vortec alternator mounting options
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Vortec alternator mounting options
Got my motor installed and ready and found out that the brackets I got off an 87 firebird 305 tpi won't work, I found a didn't set off a camaro tpi, will these work or do I have to get a set off a tbi? I'm running a carbed l31 cortex motor with an eldebrock proformer intake, what have others done for alternator mounting brackets?
Joined: Dec 2005
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From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: Vortec alternator mounting options
I used my 92 TBI brackets on my vortec heads... no issues. Why is it that yours wont work? As far as I know Vortecs have the same mounting holes as every other 1970+ sbc head.
Joined: Apr 2005
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Thread Starter
Supreme Member
iTrader: (6)
Joined: Aug 2009
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: Vortec alternator mounting options
right now I'm trying to use a the brackets from an 87 firebird tune port injection and there isn't any adjustment length for the upper bracket. So I found a complete bracket setup for a camaro and the upper brackets look longer, also note I'm using v belt brackets. Can you post pictutes up of yours please?
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Joined: Aug 2009
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: Vortec alternator mounting options
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Thread Starter
Supreme Member
iTrader: (6)
Joined: Aug 2009
Posts: 3,670
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: Vortec alternator mounting options
ill try and get a pic tomorrow after school, i have the alternators out of the car. and where can i get the conversion plug? autozone or another after market dealer?
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Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Vortec alternator mounting options
You can get plug in harnesses to adapt old style GM SI ALT to later style CS series ALT ( 130 or the larger 144 used on LT1's )
See
http://forums.corvetteforum.com/1575500651-post4.html
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From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: Vortec alternator mounting options
Got my motor installed and ready and found out that the brackets I got off an 87 firebird 305 tpi won't work, I found a didn't set off a camaro tpi, will these work or do I have to get a set off a tbi? I'm running a carbed l31 cortex motor with an eldebrock proformer intake, what have others done for alternator mounting brackets?

Thread Starter
Supreme Member
iTrader: (6)
Joined: Aug 2009
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: Vortec alternator mounting options
i bought this cheap, chrome bracket at a speed shop. sorry, i doubt i have a part number. i used most of the factory 87 brackets, belts etc. its half v-belt and half serpentine. i might be able to get you some brackets, pulleys, etc., if needed. a friend of mine passed away awhile ago and was building an 87 at the time. his wife has been selling stuff lately. heres a few pics, hope it helps.




Thread Starter
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From: Elwood, IN
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: Vortec alternator mounting options
What type ALTs are they?
You can get plug in harnesses to adapt old style GM SI ALT to later style CS series ALT ( 130 or the larger 144 used on LT1's )
See
http://forums.corvetteforum.com/1575500651-post4.html
You can get plug in harnesses to adapt old style GM SI ALT to later style CS series ALT ( 130 or the larger 144 used on LT1's )
See
http://forums.corvetteforum.com/1575500651-post4.html
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