1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

351w exhaust

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Old 07-05-2015, 01:31 PM
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351w exhaust

I'm putting a rebuilt 351w in my truck and was wondering what the best exhaust diameter is.
 
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Old 07-05-2015, 02:26 PM
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2.5" duals in to a single 3" out. Makes real good torque.
 
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Old 07-05-2015, 03:19 PM
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If you are running headers, be sure to run a 3 to 2 1/2" reducer. I don't know why they still make headers in 3" collectors when its been found out the smaller 2 1/2" collector produces better torque.
 
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