Short or long water pump - Team Camaro Tech
Heating & Cooling Heating, cooling and air conditioning

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old May 11th, 11, 06:48 AM Thread Starter
Senior Tech
Matt
 
Join Date: Dec 2010
Location: MA
Posts: 656
Short or long water pump

I need to get a water pump, fan, shroud, and radiator for my 67'. It had a 400 small block in it that I am rebuilding to install in it. I don't have the fan, radiator, or shroud that was in the car. The water pump that was on the engine is a long pump.

I want to buy a new water pump and am trying to decide if I should buy a short or long pump. I know the car originally cam with a short pump. But all my brackets and pulleys are for a long pump. Can I use a long pump? If I do will I have fitment issues with the fan, radiator, or shroud?

Should I use a long pump or buy a short pump and replace the pulleys and brackets?

Also, I want to use good thick radiator. I don't know if that will affect the decision.

Thanks for any advice.

Matt

Matt
67 RS, 406 small block, TKO600, Moser 12-bolt (3.73)
MW67RS is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old May 11th, 11, 07:13 AM
Senior Tech
Michael
 
Join Date: Apr 2010
Location: Lutz, FL
Posts: 1,918
Re: Short or long water pump

I run the long pump on my '67 w/AC and everything fits just like it does on a '69.

The only odd part is you have to adapt your wiring harness for the passenger side location of the alternator. So the only real concern is electrical.
mahunt is offline  
post #3 of 8 (permalink) Old May 11th, 11, 07:16 AM
Senior Tech
Russ
 
Join Date: Jul 2009
Location: Gilroy,CA
Posts: 1,748
Re: Short or long water pump

I run a long pump on my 89 block in a 68. No issues with a 4 core radiator. I'm running March pulleys and a Derale flex fan.

Russ (RJ)
The Garlic Capital, Gilroy,CA

(sold June 15,2014) 1968 RS convertible that is not quite stock

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
rj68RS is offline  
 
post #4 of 8 (permalink) Old May 11th, 11, 07:48 AM
Super Moderator
Bess-68's rule
 
Everett#2390's Avatar
 
Join Date: Sep 2000
Location: Va Beach VA
Posts: 32,159
Garage
Re: Short or long water pump

If the decision was made to make, I would run the long brackets already with a long water pump and rewire as suggested. You will need to get a fan set-up and shroud for a '69 to make it efficient.

Radiator is your choice or others' suggestions as 1st gen's are pretty much the same.

Give a man a rescued dog for the health of both their souls. May 2017 ROTM Winner - Thank you!
'
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
CUBS - 2016 World Series Champions - Thank you, Joe Madden enjoy your next chapter.
Everett#2390 is offline  
post #5 of 8 (permalink) Old May 11th, 11, 01:52 PM
Moderator
____
 
DOUG G's Avatar
 
Join Date: Mar 1999
Location: Maryland, USA
Posts: 19,685
Garage
Send a message via MSN to DOUG G
Re: Short or long water pump

Go long...better avalibility, you're already set-up for it, and it will work just fine.

I had the same set-up and just went electric fans this past winter.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
DOUG G is offline  
post #6 of 8 (permalink) Old May 11th, 11, 04:05 PM Thread Starter
Senior Tech
Matt
 
Join Date: Dec 2010
Location: MA
Posts: 656
Re: Short or long water pump

Thanks guys. Sounds like the long pump is the way to go. Any advice on which pump? I have heard that you should use a high flow pump with a 400. Is that correct?

Doug, I have thought about going with electric fans. What do a good radiator, fans, and shroud cost? Is it much more that a mechanical setup? I like the idea of not robbing as much horsepower to run the fan during runs at the track.

Does your electric fan set up run as cool as the mechanical? My car will see a fair amount of street driving. Will the electric fan set up work well on the street?



Matt

Matt
67 RS, 406 small block, TKO600, Moser 12-bolt (3.73)
MW67RS is offline  
post #7 of 8 (permalink) Old May 11th, 11, 05:11 PM
Moderator
____
 
DOUG G's Avatar
 
Join Date: Mar 1999
Location: Maryland, USA
Posts: 19,685
Garage
Send a message via MSN to DOUG G
Re: Short or long water pump

Good fans and radiator.... depends on who you listen to. I went the "less expensive" route.
As for better cooling ??? its about the same but I can cool down faster at the track without motor running along with less HP being robbed.
Works fine on the street .
I also upgraded my electrical system.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
DOUG G is offline  
post #8 of 8 (permalink) Old May 12th, 11, 05:01 AM
Senior Tech
Michael
 
Join Date: Apr 2010
Location: Lutz, FL
Posts: 1,918
Re: Short or long water pump

If you stay with mechanical cooling, you won't have any cooling problems as the factory system is overbuilt and you won't have to do anything to your current electrical system (other than run the alt wires to the other side of the engine).

With electrical cooling you'll most likely have problems if you don't get the fans and shrouds right and you most likely will have to upgrade your alternator and wiring for the high amp draw from the fans (you'll most likely need two fans).

Do a search on this forum for electric fan cooling problems and decide for yourself. Most of the hits begin with, "I just upgraded my cooling system to electric fans and now my car doesn't cool properly".
mahunt is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome