SBC Short Water Pump on ZZ4 or ZZ383 - Team Camaro Tech
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post #1 of 8 (permalink) Old Mar 9th, 10, 02:09 PM Thread Starter
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SBC Short Water Pump on ZZ4 or ZZ383

Guys, do any of you guys know if its possible to run the short water pump on the ZZ4 or ZZ383 motors with the plastic timing cover? Changed out old style motor and trying to run this short water pump to save my brackets and pullies. Anyone?

Don
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Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #2 of 8 (permalink) Old Mar 9th, 10, 02:16 PM
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Re: SBC Short Water Pump on ZZ4 or ZZ383

The Edelbrock aluminum pump will clear without mods, but if you use a stock pump you'll have to grind the head of one timing cover bolt.

The Corvette guys run into this all the time.

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post #3 of 8 (permalink) Old Mar 9th, 10, 04:29 PM
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Re: SBC Short Water Pump on ZZ4 or ZZ383

i ground off 3/4 of the head on 2 bolts of the timing cover to use the short style pump on my zz4 motor.
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post #4 of 8 (permalink) Old Mar 9th, 10, 06:38 PM Thread Starter
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Re: SBC Short Water Pump on ZZ4 or ZZ383

Thanks All, sometime I get the feeling that there is a hi tech detail to correct stuff like this but its basically like the old days, just make it fit. I can envision 1/4 x 20 pan head or shallow head screws or bolts for this but they are just not in my tool box. Thanks again.

Don
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Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #5 of 8 (permalink) Old Mar 10th, 10, 03:15 PM
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Re: SBC Short Water Pump on ZZ4 or ZZ383

Will you be runnin PS? I thought there was an issue with PS, Short Pump and that large harmonic balancer on the GM 383. Maybe I'm mistaken and others who've done it can clarify. I just recall that when I installed the ZZ had wanted to keep my short pump and transfer over existing pulleys but ran into an issue with the PS pump and large diameter balancer so ended up using the long pump and buying a march serpentine system. Also - if I were you would highly recommend addressing that horrible timing tab indicator that's cast into the plastic case. In car with all the accessories belts & hoses it's nearly impossible and very awkward to get a clear read on it. I've had to improvise. I think I'm going to get one of those plastic tooth picks and cut a portion off and glue it on the groove so can get a better read. I haven't seen an after-market timing tab that works with that plastic cover either - if anyone else has found one to work please let me know.
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post #6 of 8 (permalink) Old Mar 10th, 10, 03:49 PM
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Re: SBC Short Water Pump on ZZ4 or ZZ383

The old style cover will fit by just installing dowel pins in the block.

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post #7 of 8 (permalink) Old Mar 10th, 10, 04:59 PM
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Re: SBC Short Water Pump on ZZ4 or ZZ383

GM tried hard on this deal, but there isn't much to like about the plastic timing cover.

I replaced mine with a metal cover. As Don said, you need to install the 2 little dowels to make sure it's correctly located. I used a 2 piece Edelbrock stamped aluminum cover in order to minimize messing with that pesky pan/cover seal down the road.

I also used a small carpenter's square and transferred the (important) degree marks from the inside edge of the balancer to the outside edge. I used a small number stamp set for the numbers. A yellow paint pen was perfect for highlighting the lines and numbers. I just daubed the paint in the marks and the numbers, then wiped the excess quickly with a rag.

Then, I installed a Summit brand adjustable pointer.


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post #8 of 8 (permalink) Old Mar 11th, 10, 08:22 AM Thread Starter
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Re: SBC Short Water Pump on ZZ4 or ZZ383

Car does have PS and AC, we ended up changing those impeller cover bolts and one big headed bolt on the plastic cover. So far all is on and just putting stuff back on.
I was thinking about changing the cover but we got such a good seal on all this, just hated to take it all off again. This motor went into one of our Tri Five cars with the radiator in 6 cly position. Thanks again all.

Don
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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