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View Full Version : 4th Gen dual fan cfm ???



67 455 Bird ragtop
04-13-2006, 05:01 AM
Anyone know how much CFM those dual fans they put on the LS1 move ???

engine
04-15-2006, 02:20 PM
I'm not sure if it was ever officially documented, but for some reason 3600-4000 cfm is stuck in my head...

67 455 Bird ragtop
04-16-2006, 03:21 PM
Thanks. Sounds like plenrty of flow for my 469..

67 455 Bird ragtop
08-01-2006, 06:17 AM
Is there anyway to test what the cfm rating on these fans are ???

Zee
08-01-2006, 02:52 PM
I broke my 455 in with the LT1 fan set up. I figure if it can keep the temp stable running at 2200 rpm for 25 mins without moving in my garage and in 95 degree heat, it should be just fine on the road. Mine are set to turn on at 195 and shut off at 180. Nothing fancy for a radiator either, just a 4 core cooper/brass. So far, the temp made it to 210 during break in but since has gone between 180-200. I'll probably switch to a DC controller sometime in the future.

MarkM66
08-01-2006, 02:59 PM
I've used this fan set up on a few cars. I think they'd cool just about anything. Damn good fan set up.