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GM Serpentine Conversion Kit

Old Mar 7, 2008 | 09:43 AM
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Engine: 350 HO Deluxe (350ci/330hp)
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GM Serpentine Conversion Kit

The following system seems complete: 12497698 - Small Block Chevy Serpentine Accessory Belt Drive System "Deluxe With Air". Any installation hick-ups, or is the installation pretty straightforward? Tips or tricks for the conversion would be welcome.

JamesC
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Old Mar 7, 2008 | 12:15 PM
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Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

Hi James, I'm getting to install my serp parts from a '90 RS too. I think that GM kit is almost the same the TPI parts. There are two things you need to be aware of. The first is pretty obvious the A/C and alternator swap sides, so you'll have to run wires and lines. The other is the older blocks don't have the second accessory hole on the passenger side. You have to drill and tap one. I'm keeping my fingers crossed that if I just drill only 1/2" it won't hit the water jacket.
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Old Mar 7, 2008 | 12:27 PM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Hit Summit and type in the above part number. Then look toward the bottom and you'll see a GM installation procedure that appears to be VERY helpful (torque values and p/n's).

JamesC

Last edited by JamesC; Mar 7, 2008 at 12:44 PM.
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Old Mar 7, 2008 | 12:34 PM
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Car: 91 camaro
Engine: 305
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Re: GM Serpentine Conversion Kit

Originally Posted by JamesC
Hit Summit and type in the above part number. Then look toward the bottom and you'll see a GM installation procedure that appears to be VERY helpful (along with all p/n's).

JamesC

Good tip
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Old Mar 7, 2008 | 12:43 PM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

trumps,

Take note of what the guide says about those holes. Beyond the kit, I'll need the A/C hoses, a bit of wiring for the A/C compressor (GM 12101937), and a smog delete pulley (GM-6167), though not absolutely necessary, I guess.

JamesC
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Old Mar 8, 2008 | 02:37 PM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Apparently the fuel line will require some massaging as well.

JamesC
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Old Mar 8, 2008 | 09:51 PM
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

Actually the fuel line I purchased from Classic tube clears, but I have of issues. How is the stock line run? Mine passes between the water pump and timing cover.
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Old Mar 9, 2008 | 06:28 AM
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Originally Posted by trumps2000
Actually the fuel line I purchased from Classic tube clears, but I have of issues. How is the stock line run? Mine passes between the water pump and timing cover.
Stock placement. I found a member who'd converted his 83. He says that the line wouldn't fit and that he was forced to cut it and run a rubber line. My line was previously cut to accommodate my Holley.

JamesC
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Old Mar 9, 2008 | 10:06 AM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

My bad, the kit contains the smog delete pulley (Pulley, idler lower), p/n 10129569. Anybody have an idea of approximately how long the swap will take if I'm prepared with the necessary parts and air tools?

JamesC
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Old Mar 9, 2008 | 10:29 AM
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

85SS just finished the swap you can ask him in this thread
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Old Mar 9, 2008 | 10:36 AM
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Thanks, I may. I saw that link a day or so ago when I was researching--I wanted to know that the kit was pretty much a bolt-up (and that no drilling/tapping would be necesssary). Pics show three holes on each head of the HO, so I believe I'm good to go in that respect.

JamesC

Last edited by JamesC; Mar 9, 2008 at 10:39 AM.
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Old Mar 10, 2008 | 05:41 AM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Crap. The water pump in the kit won't fit my application (no heater hose connection).

JamesC

Last edited by JamesC; Mar 10, 2008 at 01:44 PM.
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Old Mar 10, 2008 | 09:22 AM
  #13  
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

I think I had to buy one for a '88 truck application.
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Old Mar 10, 2008 | 09:56 AM
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Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

That's what I discovered on another thread.

JamesC
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Old Mar 10, 2008 | 01:45 PM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Originally Posted by trumps2000
I think I had to buy one for a '88 truck application.
Was there any interference between the heater hose and the serp belt?

JamesC
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Old Mar 10, 2008 | 05:00 PM
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

I haven't completely assembled it yet. I've only done a few test fits, so I'm not sure if its an issue yet.
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Old Mar 10, 2008 | 05:46 PM
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Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

When the time comes, I'd very much like to know (apparently, you're the test mule in this set-up )

JamesC
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Old Mar 10, 2008 | 08:24 PM
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

Haha no problem, won't really get to for at least 3 weeks though. Thats when I can park my car in front of my apartment again, street laws I also have to finish rebuilding my alternator and buy serp blades for my clutch fan. Think there is any problem with spinning the clutch backwards?
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Old Mar 10, 2008 | 11:20 PM
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From: mesa, arizona
Car: 84 Trans Am
Engine: 383
Transmission: Tremec TKO
Axle/Gears: 10 bolt 3.73 lsd
Re: GM Serpentine Conversion Kit

I'm currently running the GM "Deluxe" conversion on my 84 TA. I don't recall having a problem with the water outlet at the wp. One problem i did have, was my block was decked so I had some clearance issues to work out.
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Old Mar 13, 2008 | 10:44 AM
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Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Originally Posted by squirted1
I'm currently running the GM "Deluxe" conversion on my 84 TA. I don't recall having a problem with the water outlet at the wp.
You wouldn't because (as I discovered this morning) the water pump from the kit has the threaded hole that I need. For those not using the kit, the GM p/n is 88894005 or from CarQuest AUT 10-444 (reman) or NWP 51-2180 (new).

JamesC
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Old Mar 15, 2008 | 08:46 AM
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Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Another question. Since the p/s pump is relocated in the serp system, can I use the hoses from my current set-up, or will I be obliged to replace?

JamesC
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Old Mar 15, 2008 | 11:13 AM
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

Well I don't know for sure, but I don't think its relocated much if any. Depending on the bracing behind it you should be able to reuse your lines. The setup I pulled off of '90 Jimmy 4.3L has a stamped brace for the alt and p/s which will interfere with the lines. The TPI and TBI setups use a bar to brace the alt. I haven't seen any factory bracing for the p/s. So there shouldn't be an issue there. I haven't test fit my p/s yet, cuz its a bit of a hassle, but I plan on using my Vbelt pump and so don't plan on disconnecting lines.
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Old Mar 15, 2008 | 03:26 PM
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From: mesa, arizona
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Engine: 383
Transmission: Tremec TKO
Axle/Gears: 10 bolt 3.73 lsd
Re: GM Serpentine Conversion Kit

I did not have any problems using the stock ps hoses
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Old Mar 15, 2008 | 04:35 PM
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Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Originally Posted by squirted1
I did not have any problems using the stock ps hoses
Many thanks for the reply!

JamesC
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Old Jun 14, 2008 | 06:08 PM
  #25  
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

Hey James, How did your install go? I'm almost done with mine, but I can't get the A/C brace to fit, the TES headers. How did yours go in, got any pics? The system is out of a 92 RS, but I believe its identical to your kit.
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Old Jun 14, 2008 | 06:29 PM
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Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: GM Serpentine Conversion Kit

Hey, trumps,

Sounds like you need a spacer. Here's my write-up (and some pics):

https://www.thirdgen.org/forums/afte...rsion-kit.html

JamesC

Last edited by JamesC; Jun 14, 2008 at 06:58 PM.
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Old Jun 14, 2008 | 09:05 PM
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From: Bloomingdale, NJ
Car: 1985 Z28
Engine: 350
Transmission: T-5 5 Spd
Axle/Gears: Built 10bolt w/3.73s
Re: GM Serpentine Conversion Kit

The problem is that the #2 exhaust tube comes up and over the #4 and #6 tubes, so it intereferes with the brace.

Looks like Edelbrock already knows this, I just have to bend the ends of the brace.
http://static.summitracing.com/globa.../edl-68753.pdf

Last edited by trumps2000; Jun 14, 2008 at 09:17 PM.
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