View Single Post
Old 08-30-2020, 12:25 AM   #10
msg
Registered User
 
Join Date: Feb 2013
Location: GA
Posts: 1,313
Re: Water pump for an L31?

Quote:
Originally Posted by Tom View Post
They are all fine, water pumps last forever on these things. No need for hi volume unless you have a massive HP build which it seems you don't.
Thanks Tom, I guess the AC Delco then.

Quote:
Originally Posted by sweetk30 View Post
yes that hose .

and the port might be in the block to the water jacket area but the head surface to head hole is not there . this is why you need a bypass hose . the true vortec L31 installs from gm the water pump has a hose and the intake has the spot for it .
The AC Delco I was looking at on Rockautos has a port like what I had before so I think connecting that to the manifold is the bypass I would run.

The Edelbrock intake manifold I bought is this one

https://www.summitracing.com/parts/EDL-2116

Quote:
Originally Posted by garyd1961 View Post
If you have just a heater and no ac the heater can serve as the bypass.
The Vintage Air Surefit AC system will be added this time removing the heater from the firewall so it sounds like the water pump smaller port connected with a hose to the intake is what I need to do.
__________________
Progress thread for my 66
http://67-72chevytrucks.com/vboard/s...d.php?t=623848
msg is offline   Reply With Quote