Thread: Ram Air Question: Fan Type
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Old 10-21-2017, 11:39 PM
unruhjonny's Avatar
unruhjonny unruhjonny is offline
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Join Date: May 2004
Location: Calgary, AB, Canada
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I'll stick my neck out there and suggest the five blade;
As I have understood the four blade fixed unit was more for the bread and butter engines, but the five blade was put on all (non-A/C) 4bbl performance motors...

If nothing else, someone may chime in to correct me

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.

1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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