Serpentine Conversion from OBS or 4.3L V6

[BlueCrew]

I did my searching and just wanted to clarify exactly the parts needed for a conversion to a serpentine system on my 1987 5.7 TBI.

Parts come off either a 90+ OBS Chevy Truck or 4.3L V6

Should be Two Large Aluminum Brackets w/ all the bolts
Crank Pulley
Fan w/ Thermostatic Clutch
Reverse flow water pump
A/C Compressor
Alternator
Powersteering Pump

Am I missing anything?? Also wanted to confirm that all the parts off the V6 are usuable with my 350.... Since I plan on converting to r134 after the swap should I go ahead and grab the accumaltor and condensors off the donor vehicle?

[Metalshapes]

Indeed they are the 4.3 is a 5.7 without 2 of the cylinders. I just did a v-8 turbo conversion on my wifes all wheel drive 2000 bravada and the whole system bolted right on to my small block.

[Greenlee]

Can't think of anything you are missing except maybe the belt and tensioner. Also, you need a pulley puller to remove the power steering pump. I rented one. This also has a tool for pressing the pulley back on. I didn't realize that and returned the tool, and had to go back and rent it again.
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[gchemist]

I'm running a V6 system on my ZZ4.



You will need a bracket to change to a 90's upper water hose.
Here is a pic of my bracket.

The bracket has a cradle under the hose. The cradle is made from an exhaust pipe. It' welded to the end of a bracket brace.

[BlueCrew]

Fabbing should be easy. Do I need the thermostat housing too for the upper hose?

[gchemist]

Yes, grab it. It points the upper hose in the correct direction. For the alternator to work, all you need is an ignition source to the L connection. Once the alternator starts to charge, power is no longer used by the ingnitions source. I have my ignition source tied to a light. When the alternator is not charging, the light is on. When the light is off, the alternator is charging. It's a great way to know if I throw a belt or the alternator stops working.

A/C hoses will need to be made and cut.

I think I now remember having to find a V8 crank pulley. But I think my system when bought, had a car pulley sent with it.

[BlueCrew]

All great info guys! I will grab a pulley puller for the junk yard.

What did you mean by "all you need is an ignition source to the L connection"? Something like an accesory wire (only on when ignition is on) to the alternator?

[gchemist]

Yes, the alternators has a four prong connector. All you need is power to the L connector from an ignition source. Grab the alternator connector or you'll have to buy one to fit the it.

[BlueCrew]

On an unrelated note, I will be buying a new driver vent window on my junkyard run too. Turns out you can open it with the lock still engaged.... Just in pieces.