Mike Mileski Posted June 28, 2014 Share Posted June 28, 2014 Has anyone ever done this or does everyone use electric? I am in the process of installing an LS3 in my '71 240. Previously, I had a ZZ4 crate motor using the JTR setup with a clutch cooling fan and it worked flawlessly in the AZ summers. My 2002 Tahoe has an engine driven clutch fan and I've thought about using one if it was doable. Before starting from scratch, I was checking to see if anyone has done it and what parts you used. Mike Mileski Tucson, AZ Quote Link to comment Share on other sites More sharing options...
Domzs Posted June 28, 2014 Share Posted June 28, 2014 Highly rec electric fan(s) . I think truck water pump is the only one is threaded for mechanical fan . It's doable if you have enough clearance for upper radiator hose and fan . Quote Link to comment Share on other sites More sharing options...
Phantom Posted July 1, 2014 Share Posted July 1, 2014 I'm running the electric fans that came out of the donor Camaro for my LS1. They fit my radiator beautifully and plug into the ECM harness and work flawlessly. The set-up can keep the engine from overheating in 100+ weather with the AC on full in stop and go DFW traffic with only one fan running. Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted July 1, 2014 Share Posted July 1, 2014 Run the electric fans, it's the only way to go, ecm controlled. Quote Link to comment Share on other sites More sharing options...
dreco Posted July 2, 2014 Share Posted July 2, 2014 Run the electric fans, it's the only way to go, ecm controlled. Have to agree. I went one more step and added an electric water pump. Quote Link to comment Share on other sites More sharing options...
ktm Posted July 2, 2014 Share Posted July 2, 2014 Run the Ford Taurus or Lincoln Mark VIII fans if you go this route. In addition, do a bit of blocking to direct all the air through the radiator. I did so (and am running a Taurus fan) and I never see over 180 degrees on the highway even when it is 90+ degrees outside. Quote Link to comment Share on other sites More sharing options...
Zfan1 Posted July 2, 2014 Share Posted July 2, 2014 Lincoln fan, after my old Taurus fan fan finally gave out after nearly 10 yrs Quote Link to comment Share on other sites More sharing options...
EastTnZ Posted July 2, 2014 Share Posted July 2, 2014 (edited) I'm using a sable/taurus fan and even in dead stopped traffic with 95* outside temps I've never seen over 205*. This is also with a 3 row 280z aluminum radiator and no fan shroud around the taurus fan. Fan (low speed) kicks on at 200* I believe. While driving it stays at 190* or below (186* new factory 5.3 thermostat). I did however use pipe wrenches to remove the fan off of my 5.3 before installing the V8 in my z. Never thought about using it in the z but there's enough room for it. Edited July 2, 2014 by EastTnZ Quote Link to comment Share on other sites More sharing options...
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