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Old 04-20-2003, 07:34 PM
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Post Serpentine reduction pulleys

I am using a serpentine belt to run my water pump and alternator and i want to run a reduction pulley on the water pump. I have a 79 monte with a 355, the pulleys i got off a 76 chevy truck but i am pretty sure it didn't come factory with them. I was wondering if there is a factory pulley that is bigger than the one i have. I don't want to go with a v-belt because i have never threw this serpentine off. Also i busted my 4 core radiator last weekend and i have a new 3 core to put in it and i am worried about it not cooling good enough.

ps this is a dirt oval track car

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Old 04-21-2003, 10:39 PM
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The reduction pulley is good for a couple horsepower, but I say don't do it if you're not going with a radiator that is BETTER than the four core you had. Being a race car, you need all the cooling you can get, and by doing both you're really pushing your car's cooling system. I had a three core on a 289 I had, and even though small block Fords tend to overheat more than small block Chevys in my experience, I could not run the car below 220 degrees after I rebuilt the motor and everything was tight again. I had to go to a four core high performance copper brass, it still heats to 210 sometimes when I'm stopped, and it's a daily driver. Since you're running a race car, I would save my money and get the best copper brass or even better, aluminum radiator I could find before running a reduction pulley
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