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#1 |
Registered User
![]() Join Date: Aug 2020
Location: Jacksonville, Arkansas
Posts: 60
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Need help with stock pulley setup
So I’ve got a 1972 K20 with a 350 and power steering, but non A/C nor smog. Can someone tell me what pulleys I need to make everything line up and route correctly for a stock application (short water pump)? My current water pump pulley has 1 groove that doesn’t line up with anything on my crank.
Someone had put a later style engine in this truck and it had a whole mess of crazy bent up pulleys on it. Thanks in advance.
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-1972 Chevrolet K10 LWB Pickup -1972 Chevrolet K20 Pickup -1972 Chevrolet K10 Suburban ... and counting |
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#2 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,175
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Re: Need help with stock pulley setup
I'm afraid I don't have the answer you need but, I will suggest you ask a moderator move your thread to the pick-up section where you will have far more people see it than you would here in the lonely Suburban section.
And maybe another photo of your alternator brackets. Good luck.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#3 |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,556
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Re: Need help with stock pulley setup
Contact--lolife99--he should be able to help you with the correct water pump pulley
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#4 | |
Registered User
![]() Join Date: Aug 2020
Location: Jacksonville, Arkansas
Posts: 60
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Re: Need help with stock pulley setup
Quote:
Thank you!
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-1972 Chevrolet K10 LWB Pickup -1972 Chevrolet K20 Pickup -1972 Chevrolet K10 Suburban ... and counting |
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#5 |
Registered User
![]() Join Date: Aug 2020
Location: Jacksonville, Arkansas
Posts: 60
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Re: Need help with stock pulley setup
Thank you for the suggestion. I’ll reach out to him.
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-1972 Chevrolet K10 LWB Pickup -1972 Chevrolet K20 Pickup -1972 Chevrolet K10 Suburban ... and counting |
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#6 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,701
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Re: Need help with stock pulley setup
Got your pm’s.
I think you have the wrong water pump pulley. Which crank groove does your alternator line up with. Here’s the setup on my truck. It all came from a 1971 with a 350.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#7 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,701
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Re: Need help with stock pulley setup
I think your water pump pulley is from a “long water pump” set up.
(73-87 pulley) The alternator should run on the groove closest to the crank. The add-on crank pulley is p/s specific. You need a deeper water pump pulley.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#8 |
Registered User
![]() Join Date: Aug 2020
Location: Jacksonville, Arkansas
Posts: 60
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Re: Need help with stock pulley setup
My alternator pulley lines up perfectly with groove number 1 (closest to the crank).
__________________
-1972 Chevrolet K10 LWB Pickup -1972 Chevrolet K20 Pickup -1972 Chevrolet K10 Suburban ... and counting |
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#9 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,701
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Re: Need help with stock pulley setup
I have a single groove water pump pulley, but it’s chrome.
I’m sure you could paint it black. It should be about a 7” diameter pulley, 3” deep. They sell them aftermarket. Or I’d be glad to sell you my chrome one. I’ve sold all my single water pump pulleys in bare steel.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#10 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,701
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Re: Need help with stock pulley setup
I do have this 2-groove waterpump pulley.
https://67-72chevytrucks.com/vboard/...d.php?t=835174
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#11 |
Equal opportunity joke ofender
![]() Join Date: Oct 2011
Location: Eastern Shore of MD
Posts: 10,056
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Re: Need help with stock pulley setup
here is a picture of my 72 K5 with small block no AC or smog. short pump with power steering as well as picture of part number stamped on the top water pump pulley
.
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