I think the 6 blade is better for HP... The four blade pulls alot of air. We havent had any cooling issues at all with the six blade. I have always ran a shoud.
Old GM 4 Blade takes more power to turn than anything short of a Bi-plane prop . Dyno guys can testify here. It will suck enough air to sound like an F-4u comin in for a strafe run. Well maybe not that bad.
Last edited by 1Blacksheep; 11-18-2010 at 05:11 PM.
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