Broken two groove v-belt PS pulley for SBC 350 - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-02-2009, 05:27 PM
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Broken two groove v-belt PS pulley for SBC 350

I tried to use a puller to take the pulley off the PS pump on my '75 SBC 350, and it was so tight that the puller broke the lip off the pulley.

The pulley is a GM 354325AC two-groove PS pump pulley, which is apparently very common for the 70's SBC. However, I haven't been able to find a parts store (NAPA, Autozone, etc.) that stocks it, and the Chevy dealers aren't open today so I can find out if they have it. I also tried the Delco site and could not find a matching part. I did find a chrome replacement made by March, but I would rather use a stock pulley.

Is this pulley going to be fairly easy to buy new, or should I plan a trip to Pick and Pull? By the time I drive 20-30 miles to the junkyard, and then spend an hour or so in 100 degree heat pulling parts, its not a solution I look forward to.

I could also just grind the rest of the lip off the pulley and put the pump back on my truck. The pump works okay most of the time, but seems to have an intermittent "stutter" during very low speed turns.

Thanks,

Bruce

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Old 08-04-2009, 10:07 AM
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I take it you have already called the dealership by now but they should have it. I have a 2 groove GM# 14023173 on my truck that I got from the dealership. I think it is from about the same application as your truck.
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Old 08-04-2009, 10:41 AM
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Quote:
Originally Posted by 75gmck25
I could also just grind the rest of the lip off the pulley and put the pump back on my truck. The pump works okay most of the time, but seems to have an intermittent "stutter" during very low speed turns.

Thanks,

Bruce
I doubt the "stutter" is due to the pulley in any case. Even if the pulley is glazed, some Scotchbrite should fix that. More likely the problem is a loose pressure regulator valve in the pressure outlet port of the pump body.
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Old 08-04-2009, 05:03 PM
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Thanks for the help.

Triaged
When I called the dealer their book only went back to '82, and then the pulley they found was discontinued. I will try to get them to find the GM# 14023173 and compare it to my pulley.

joe_padavano
I was taking the pulley off so I could replace the pump, since I thought the uneven pressure stutter was due to a bad pump. Can the pressure regulator valve be replaced without swapping out the entire pump? An entire rebuilt pump isn't that expensive, but I may get another one with the same problem. At least the one I have does not leak, so I'd like to repair it.

Thanks,

Bruce
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Old 08-04-2009, 06:43 PM
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I think you might still be able to get the pressure reg part/outlet from GM but only for the newer o-ring fitting and not the old flare fitting that you have.
http://jeffd.50megs.com/Pump_valve_mod_page.htm

If you can't get the pulley from GM give LMC Truck a call
http://www.lmctruck.com/icatalog/cc/full.aspx?Page=140
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