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Joined: Apr 2007
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headers to single
hi, I've got a 79 f-150 with a 400 as soon as it thaws im going to do some work on my engine. what I was wondering is since my truck has new exaust with bad manifolds can I go with the single exaust with a v to the headers will this hurt performance considerably or not i'm going for torque. I'm also considering cutouts on the v. thank you
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Joined: Jan 2004
Posts: 887
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From: Colorado
IM planning on getting rid of my headers and dual exhaust and putting factory manifolds back on mine with 2.25" from the manifolds down to a y pipe then to either a 3" or 3.5" exhaust.
As far as cutouts, unless you only want to make noise they arent worth it on a a mild built 400 in my opinion. My truck actually slowed down and lost power by opening the exhaust up so i took my cutouts off the truck.
As far as cutouts, unless you only want to make noise they arent worth it on a a mild built 400 in my opinion. My truck actually slowed down and lost power by opening the exhaust up so i took my cutouts off the truck.
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