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headers for milage
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kingd
New User
| Posts: 2
| Joined: 09/04
Posted: 09/17/04
04:19 PM
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could anyone advise me on the right way to build an exhaust system to increase the torque (down low) and help with gas milage? i am starting with a 1963 wagon,stock 283, and 1 5/8" hooker block huggers. any infomation would be greatly appreciated. don
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gearman
Enthusiast
| Posts: 270
| Joined: 08/04
Posted: 09/18/04
12:43 PM
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I dont know if anyone makes them but I suggest 1 1/2 primary tube headers.And regular long tube headers with a long collector that is like 2 1/2 .I had a set of hooker competition headers and they are a well designed header.I had some headmans and they were not much better then manifolds.I feel the hookers were worth the extra money.Having a balance tube seems to play a big role in bottom torque,and throttle response.The 1 1/2 primaries are reccomended for 305 or smaller to keep the velocity up.
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gearman
Enthusiast
| Posts: 270
| Joined: 08/04
Posted: 09/21/04
07:24 AM
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Also I dont know how far you are gooing with this engine.It will respond like any otther small block.Aluminum intake with small runners.Performer but not like performer rpm.A cam with a LITTLE more lift and keep the duration @.050 below 210 Deg.If you are still running the powerglide you can gain a lot of response from a stop by at least gooing to a th350.There is a discussion titled 700r4 in here describing that.The Idea of the smaller engines has always appealed to me.I bet right now u can get 20 mpg .
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