Me again...swap/powersteering pump question

midwestls

Royal Smart Person

Aug 15, 2007

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Bismarck North Dakota

• May 28, 2008

• #1

Yep, told you I'd be back. 87 4.3 LS to 72ish 350. I'm trying to reuse my cars partial serp system off the 4.3 on my 350. Will all the brackets and the p/s pump, alt, and a/c comp bolt onto my 350??? The power steering pump (and it's pullys) look a bit on the large side to fit. Also I've got headers on it and one of the brackets usually bolt to the top of one of the manifolds. Anyone make a bracket for this?

 

megaladon6

Comic Book Super Hero

May 29, 2006

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Danbury, CT

• May 28, 2008

• #2

i had no problems with mine and none of the brackets needed to bolt to the exhaust. it all goes in the heads.
it should look like this right?

 

midwestls

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Aug 15, 2007

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Bismarck North Dakota

• May 28, 2008

• #3

actually I don't have the big aluminum brackets, I just have a whole bunch of little misc ones that bolt to the water pump, heads and one of them, I believe it was either the a/c or p/s bracket, pretty sure a/c, bolted to the back of the compressor then to the first two exhaust manifold bolts. Do you know what I'm talking about? My factory setup uses three belts, one serp and two v's (one of which only ran the smog pump and wont be back on. Whats that system you got? What's it off of?

 

78mali350

Royal Smart Person

May 13, 2007

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Pratt, KS

• May 28, 2008

• #4

i dont exactly get your question but i know when we put headers on we have not been able to hook our a/c up due to one of the brackets hooking up on the exhaust. so yeah. some modification will be needed. i believe

 

midwestls

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Aug 15, 2007

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Bismarck North Dakota

• May 29, 2008

• #5

ok, thats the rear a/c bracket. What I'm wondering is if the rest of the factory 4.3's power steering, and a/c brackets will bolt up to the 350 or if I need to find something else that'll work?

 

85 Cutlass Brougham

Geezer

Sep 1, 2006

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Tampa Bay Area

• May 29, 2008

• #6

For the A/C bracket, you can do what Edelbrock does with it's TES headers for the G body. They supply a longer bolt and a spacer which permits installation of the bracket the same length away from the header. It is 1.5 in. long. You could make it out of a pipe nipple with the right ID and just cut off the thread and cut it down to the right size. It should cost about $1 to make. For the bolt, you can use the original manifold bolt in place of the shorter header bolts that you would normally use. It works very well and I have not had any issues with it. I would also recommend using the small header bolt lock washers you can get at the speed shop. They came with the headers on my car, and I have yet to experience a leak.

 

85 Cutlass Brougham

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Sep 1, 2006

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Tampa Bay Area

• May 29, 2008

• #7

Here are some pics of the A/C bracket on the driver's side of my V belt car with the spacer and Edelbrock headers. Please forgive the un-retouched photos. I probably should have fixed the contrast.

Here's the Passenger's side spacer where the smog pump would normally bolt to.

I swear I have the most photographed ugly 350 on the net... lol... Note the formerly chrome Holley mechanical pump I painted with black spray paint.

 

megaladon6

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May 29, 2006

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Danbury, CT

• May 29, 2008

• #8

what i posted is a pic of a 4.3l v6 serpentine belt system on a 350. what you have is a regular v-belt system, not a serpentine belt system. hence the confusion.

 

midwestls

Royal Smart Person

Aug 15, 2007

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Bismarck North Dakota

• May 29, 2008

• #9

Alright, thats actually my fault. But I do have one serp, just not a full system. So what exactly are the brackets you show on yours??? Off a vortech or something or what? Doe all the stock accessorys bolt onto your brackets or did you have to change it all?

 

megaladon6

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May 29, 2006

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Danbury, CT

• May 29, 2008

• #10

you do need to change it all, especially the water pump since it's a reverse rotation system. you can find them on 90's astrovans, camaro's and trucks. they all bolt up to v6 and v8's with vortec or regular heads.
you might be able to use the stock p-steering pump but you have to change the puller. and you have to change the crank pulley too.
i think GMPP sells the complete kit for $500 if you want brand new.