Fan
I have run both the factory original 5 blade flex on my bird and a 7 blade with clutch fan.
I will say the whole cooling system is more then just the fan.
Just the 7 blade and clutch were no help till I installed an AC pulley
Setup with 8” crank and 6.5” water pump pulley.
Along with a new cold car radiator I never see higher then 180 during a long highway run and
The heat of summer. 170 around town with 170 thermostat.
Stat was checked and cracks open at 165-167 and is fully open around
185-190. This is with a STD fan clutch from Napa with no mods done to it.
Yes
It’s a whole system.
Gerry.
__________________
1968 Firebird 400, 068 cam, TH400 & 13" Continental Converter, Auburn posi with 3:08 factory gears, Cliff's Q-jet resting on a 68 factory iron intake, DUI HEI and Ram Air pans and RARE Long Branch Manifolds
|