water pump choice
Thread Starter
Melting Slicks
Joined: May 2003
Posts: 2,076
Likes: 281
From: Dyersburg TN
water pump choice
when I replace my timing chain, the water pump will be replaced too. Is there any benifit to using new vs remanufactured on a stock replacement? Also the parts store asked if I needed the one with the 'raised boss for upper heater outlet'. Neither of us have any idea what they are talking about.
Thread Starter
Melting Slicks
Joined: May 2003
Posts: 2,076
Likes: 281
From: Dyersburg TN
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Terrorizing Orange Cones
Joined: Oct 2007
Posts: 2,572
Likes: 17
From: Northern CO
See the following (disregard that they're aluminum: it's the dimensions that are important):
Corvette
Non-Corvette
Hope this helps.
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
i dont think that holds true for all corvettes.
the edelbrock site on which pump to gets says that it used 5/8 up to 70 and 3/4 after that.
http://www.edelbrock.com/automotive_...igh_perf.shtml
that in mind, the pump on my 72 454 is a 5/8.
the edelbrock site on which pump to gets says that it used 5/8 up to 70 and 3/4 after that.
http://www.edelbrock.com/automotive_...igh_perf.shtml
that in mind, the pump on my 72 454 is a 5/8.
Drifting
Joined: Apr 2006
Posts: 1,911
Likes: 2
From: gold coast queensland
that picture by dustup sure is interesting. i did know about the different shaft sizes between corvette and non corvette pumps and thats exactly the reason i went to a non-corvette weiind water pump cause it made it a hell of a lot easier to buy nice chrome pulleys that all match my other pulleys. specific corvette pulleys are a rip-off. now the .18'' difference from back of pump to the face of pump i did not know about but to be honest my belts all line up perfect and cant see the difference so maybe its not that significant.
just an extra thought why everything might line up now is because once i changed to a non corvette pump i swapped out all my pulleys so maybe that original bottom corvette crank pulley is only compatable with the corvette water pump pulley too.either way im glad im away from the corvette specific pump and pulleys now.
just an extra thought why everything might line up now is because once i changed to a non corvette pump i swapped out all my pulleys so maybe that original bottom corvette crank pulley is only compatable with the corvette water pump pulley too.either way im glad im away from the corvette specific pump and pulleys now.
Last edited by gingerbreadman1977; Jun 10, 2009 at 05:43 PM.
Drifting
Joined: Apr 2006
Posts: 1,911
Likes: 2
From: gold coast queensland
i dont think that holds true for all corvettes.
the edelbrock site on which pump to gets says that it used 5/8 up to 70 and 3/4 after that.
http://www.edelbrock.com/automotive_...igh_perf.shtml
that in mind, the pump on my 72 454 is a 5/8.
the edelbrock site on which pump to gets says that it used 5/8 up to 70 and 3/4 after that.
http://www.edelbrock.com/automotive_...igh_perf.shtml
that in mind, the pump on my 72 454 is a 5/8.
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
yep,
just like the website says, however when i got to looking at mine during my cam swap the whole water pump issue came up.
i got a 3/4 pump because all of the parts house websites say that a 72 vette is supposed to get a 3/4 but when i matched the new to the old the old was a 5/8.
not being the original owner of a car is fun sometimes
just like the website says, however when i got to looking at mine during my cam swap the whole water pump issue came up.
i got a 3/4 pump because all of the parts house websites say that a 72 vette is supposed to get a 3/4 but when i matched the new to the old the old was a 5/8.
not being the original owner of a car is fun sometimes
Racer
Joined: Jul 2008
Posts: 353
Likes: 30
From: warwick rhode island
i use a stewart water pump on my 350. i switched because where i live it can stay above 100 for most of the summer. with the stewart, an electric fan (two speed lincoln fan), and a slightly larger crank pulley i can sit in traffic with the a/c blasting on the hottest days without any hint of overheating.
i just used the basic stewart pump with their thermostat.
http://www.waterpumps.com/
i just used the basic stewart pump with their thermostat.
http://www.waterpumps.com/
Drifting
Joined: Apr 2006
Posts: 1,911
Likes: 2
From: gold coast queensland
yep,
just like the website says, however when i got to looking at mine during my cam swap the whole water pump issue came up.
i got a 3/4 pump because all of the parts house websites say that a 72 vette is supposed to get a 3/4 but when i matched the new to the old the old was a 5/8.
not being the original owner of a car is fun sometimes
just like the website says, however when i got to looking at mine during my cam swap the whole water pump issue came up.
i got a 3/4 pump because all of the parts house websites say that a 72 vette is supposed to get a 3/4 but when i matched the new to the old the old was a 5/8.
not being the original owner of a car is fun sometimes
Drifting
Joined: Jul 2007
Posts: 1,889
Likes: 23
From: Kansas
O K you guys, I've been saving a new Alumin. pump on the shelf, for the next time. LOL I bought this pump from one of the forum members... I just did the math, and it is the wrong pump. So give me a hint, what does it fit, Thanks. Gene
Burning Brakes
Joined: Aug 2006
Posts: 1,217
Likes: 5
From: Stark County Ohio
Water pumps on these cars are easy to replace and not that expensive. So you have a choice new - rebuilt. I prefer new.
If you have the original water pump you should hang on to it for future restoration purposes.
Having said that, I installed a Weiland High Volume water pump on my 1974 driver in 1996. The car has 140,000 ADDITIONAL miles since the install and the pump still works fine.
I went to the high volume pump and a large four-core radiator to help with cooling issues.
The Weiland was a bit cheaper back in 1996, but I guess it's all relative.
If you have the original water pump you should hang on to it for future restoration purposes.
Having said that, I installed a Weiland High Volume water pump on my 1974 driver in 1996. The car has 140,000 ADDITIONAL miles since the install and the pump still works fine.
I went to the high volume pump and a large four-core radiator to help with cooling issues.
The Weiland was a bit cheaper back in 1996, but I guess it's all relative.
