converting 3 groove to 2 groove water pump pulley
Thread Starter
Melting Slicks
Joined: Jan 2000
Posts: 3,326
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From: home
converting 3 groove to 2 groove water pump pulley
Any one know which of the multitude od GM 2 groove water pump pullies I would use to go from a 3 groove to a 2 groove? I don't have a smog pump, that extra unused groove just bothers me. It's for a 69 427 non a/c, non power steering engine.
Racer
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Race Director
Joined: Jan 2002
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From: No Where USA
please send message to vitllnk@aol.com on price for your three groove pulley...Thanks
Check this out before you buy one. https://www.corvetteforum.com/forums...for-cheap.html theres one on e bay right now for $26.
This should actually become a sticky as it will save members a lot of money. Note to moderator...
Last edited by 540 vette; Sep 3, 2017 at 10:02 AM.
Thread Starter
Melting Slicks
Joined: Jan 2000
Posts: 3,326
Likes: 523
From: home
please send message to vitllnk@aol.com on price for your three groove pulley...Thanks
Le Mans Master
Joined: Apr 2015
Posts: 9,432
Likes: 124
Check this out before you buy one. https://www.corvetteforum.com/forums...for-cheap.html theres one on e bay right now for $26.
This should actually become a sticky as it will save members a lot of money. Note to moderator...
This should actually become a sticky as it will save members a lot of money. Note to moderator...
Last edited by centuryoldracer; Sep 3, 2017 at 06:56 PM.
Le Mans Master
Joined: Apr 2015
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Likes: 124
I probably have the 2 groove if you need one.
Thread Starter
Melting Slicks
Joined: Jan 2000
Posts: 3,326
Likes: 523
From: home
Did some minor part number searches. There are at least three still available new from GM. their price ranges from $24-50. I'll need to determine which one. I'm thinking a 66-7 427 non a/c, non pwr stg, non a.i.r. application would do the trick. If I had any common sense, I would have looked at these cars when I was at Carlisle last week.
Race Director
Joined: Jan 2002
Posts: 11,614
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From: No Where USA
Except for one important fact. I just tried to install the 3 groove boat pulley, and it has the large bolt pattern, my water pump, and more importantly my fan clutch has the small bolt pattern so I ended up slapping the single on over my double to get my air conditioning belt groove. You could however re drill the boat pulley to the smaller bolt pattern, but I opted not to do this.
That's odd because I bought one and it bolted right up. I didn't have to drill anything. Maybe you have the wrong water pump.
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Le Mans Master
Joined: Apr 2015
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I do have a water pump from a Autoparts store that is drilled for both patterns, but the 2 groove uses the smaller bolt pattern as does the original fan clutch, so I could have switched to the larger pattern for the 3 groove to work, but then my fan clutch wouldn't have worked.
Le Mans Master
Joined: Apr 2015
Posts: 9,432
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