Short or Long Water Pump?
Thread Starter
Instructor
Joined: Feb 2005
Posts: 153
Likes: 1
From: Monroe MI
Short or Long Water Pump?
Trying to determine if I have short or long water pump . . . kind of looks to be a long. I know on the Big Blocks whatever side the alternator is on tells what the pump is. This a 68 with what shoudl be a 69 350 in it, the alternator is on the drivers side. I want to order a new aluminum pump but need to know before I go order it to avoid having to pay retrun shipping costs if its not the correct one.
Thanks
Chris
Thanks
Chris
Thread Starter
Instructor
Joined: Feb 2005
Posts: 153
Likes: 1
From: Monroe MI
But I cant be sure if its a vette motor with vette accessories, but was told its a 69. Deck has been machined but the casting number shows a 69. Doesnt the alternator location have anything to so with it? What sides are your guys alternator on?
Thanks
Thanks
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Team Owner
Joined: Jul 2004
Posts: 40,435
Likes: 793
From: Redondo Beach, California
The short water pump measures 5.625 inches from the block to the top of the water pump pulley mount. The long water pump is 7.00 inches.
Check out:http://www.marchperf.com/csb_pulleys.html
Check out:http://www.marchperf.com/csb_pulleys.html
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Originally Posted by 69396Chevy
Trying to determine if I have short or long water pump . . . kind of looks to be a long. I know on the Big Blocks whatever side the alternator is on tells what the pump is. This a 68 with what shoudl be a 69 350 in it, the alternator is on the drivers side. I want to order a new aluminum pump but need to know before I go order it to avoid having to pay retrun shipping costs if its not the correct one.
Thanks
Chris
Thanks
Chris
Drifting
Joined: Dec 2002
Posts: 1,887
Likes: 1
From: Hill AFB area Utah
Originally Posted by pws69
There is a specific "Corvette" short pump - I believe it measures 5.8" (as opposed to the "standard" short pump at 5.625") and it has a 3/4" shaft.
Racer
Joined: Aug 2000
Posts: 434
Likes: 3
From: Cleveland Ohio
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Originally Posted by 69396Chevy
OK, next question then. Who makes a specific "Corvette" water pump. Everything Ive seen just says short or long.
Safety Car
Joined: Aug 2000
Posts: 3,711
Likes: 43
From: San Antonio TX
Originally Posted by dmrodco
He's right its neither ! its a corvette water pump. Had a friend bring his vette in and some one had put a short waterpump in and washers to make the pullys line up ! what a joke. he asked why the pully wobbled ! I handed him 3 bucks worth of washers. If you cannot do it right why bother.
Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
Originally Posted by gerry72
Well, he's almost right. The 5.8" "Corvette" pump didn't come into being until 1971 and was used through the 1982 build. Prior to that(1970 and back), a regular "short" pump was used. Beyond the length difference, the pilot was 3/4" rather than the standard short pump's 5/8". Makes a difference in accessory drives in both alignment and fitting the pulley/fan on the pump.
