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Username Post: what type fan blade for 305 chevy
Bel Air kiwi 
"3rd Year" Silver Supporting Member
Posts: 3813
Bel Air kiwi
Loc: New Zealand
Reg: 04-24-14
12-06-17 06:08 PM - Post#2717118    
    In response to DZAUTO

Hi DZ, I would agree that old system works fine, and if it needs a bit of help then the simple drum type early impala shroud will help.

Electric fans only come to the fore when you haven't got room or you want some economy

My F250 has a huge eight blade steel fan and an enormous radiator with no shroud. It doesn't get hot even parading as it was made with a Granny low gear so you can idle around the farm feeding out.

The downside of that is that big fan out on the motorway at a couple of thousand revs is probably sucking 15Hp or more for nothing as the airflow makes it redundant. With a fixed fan you have to set it for worst case scenario and waste the energy the rest of the time.

However, given how big the fan is it's pretty bullet proof and simple. Short of throwing a belt or getting a leak you will never have to worry about it. Being a 3/4 ton it was configured for towing and slide on campers etc so it's not really over kill if you really load it up.

Cheers Kiwi
48 3100 RHD, 51 Deluxe 4DR RHD, 51 Bel Air parts car, 52 Bel Air P-Glide LHD. Others 23T, 32 Tudor, 58 Edsel pacer 4DR HDT, 79 F250 351C RHD. 69,70,82 Capri. No mobile, no TV, and no Jap cars.

And when it was laid to waste, they called it peace.

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