Fan ?

[Burke1118]

I have never had any issues with cooling using a 15" 6 blade and a shroud. Even on very big inch engines. You might need to rethink your cooling routing and water speed. More so than the fan.

Care to elaborate? You change the pulleys on the water pump to increase flow rate? I’ve always wanted to do that but worried about cavitation

[hucktyson]

Please just run a regular gm high pitch 19” 4 blade and have zero issues

[Basecircle]

Huck, we’d love to keep running the GM fan. It’s all we run, and it WORKS! Unfortunately, they’re discontinued and you can’t replace them. Hopefully someone steps up and reproduces it without sacrificing its performance. I haven’t seen it done successfully yet.

[hucktyson]

Jay (not a nice word)(not a nice word)(not a nice word)(not a nice word)ens claims to have an exact replacement

[hucktyson]

I just seen gray say to run a 15” 6 blade lol it will literally run 40 degrees hotter than the 4 blade lol