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Anybody wanting to run a 10 rib blower belt needs this water pump info
During my swap from 8 to 10 rib I kept hearing conflicting information about if the oem water pump would work. I came up with a theory that pre-2009 water pumps used a wider pulley along with the different port location. To test this out I bought a 2008 Z06 water pump, and sure enough it was wide enough for the 10 rib.
You blower guys may want to check this out. I just got it, just because its a cheap high flow pump but the pulley on it is quite wide. Seems to be for an F-Body but it seems to take the new style thermostat and housing fine although the dimensions are a little different. I guess it's similar to the LS1/6 pumps mentioned above. Seems hard to beat for $82. Haven't run it yet though.
You blower guys may want to check this out. I just got it, just because its a cheap high flow pump but the pulley on it is quite wide. Seems to be for an F-Body but it seems to take the new style thermostat and housing fine although the dimensions are a little different. I guess it's similar to the LS1/6 pumps mentioned above. Seems hard to beat for $82. Haven't run it yet though.
Where's everyone getting their water pumps from. The Chevy dealership or is a auto zone brand good enough? Also was the 2008 z06 the best one to get or is the ls6 the best? This will be going on a 2013 grand sport.
I got mine from Gene Culley at Cultrag GM parts. It's a 2004 LS6 pump. I had the pulley tig welded on as my stock pulley backed off about 1/4" and the rear edge started cutting belts.
I got mine from Gene Culley at Cultrag GM parts. It's a 2004 LS6 pump. I had the pulley tig welded on as my stock pulley backed off about 1/4" and the rear edge started cutting belts.
Did the exact same thing - 10 rib with 8" lower, 3.8" upper pumping 32psi with no issues
I got mine from Gene Culley at Cultrag GM parts. It's a 2004 LS6 pump. I had the pulley tig welded on as my stock pulley backed off about 1/4" and the rear edge started cutting belts.
Thank you for your business and for the referral!
__________________ Phone: 484-334-8833 Owner of CULTRAG Performance
Which one would be a better choice. 2008 z06 or the LS6 water pump for a 13 grand sport? Found a duralast ls6 for $127 at auto zone. 08 z06 water pump is 3 week back order.
09-12-2014, 08:01 PM
Anybody wanting to run a 10 rib blower belt needs this water pump info
Did the exact same thing - 10 rib with 8" lower, 3.8" upper pumping 32psi with no issues 
