Re: 85 camaro bbc headers -- Lemons Header Message Board

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Subject: Re: 85 camaro bbc headers

Author:
dan lemons

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Date Posted: 05:00:13 04/16/02 Tue
In reply to: will allen 's message, "85 camaro bbc headers" on 08:14:16 03/30/02 Sat

>i have talked to you about these before and the
>exhaust problems.i have built a 439 inch nitrous
>motor(400hp spray)and need some bigger headers.i
>beleive you said they are all slip fit tubes with a
>slip on collector.this a 10 inch tire car that weighs
>3480 with me with a glide.my super comps are 1 7/8
>with a 3 inch collector and the car runs 10.0's@139(on
>300hp nos) but only has a 60 foot of 1.63 and i think
>the header is to restrictive when i hit it at the
>start and causes to much backpressure.i was thinking
>of going to a 2 1/8 header with a 3 1/2 or 4 inch
>collector.i do need the collector to have a flange so
>i can bolt on the exhaust.i would also need some extra
>90 elbows so i could move the collector so i can run
>the exhaust like i have now,unless i can put a 90
>elbow on th collecor itself and make that fit.i know
>you have 4 inch flanges i can weld on but where would
>i get 4 inch flange gaskets?3 1/2 gaskets are easy to
>get.what sizes do you recommend?
>thanks
>will
Hi Will. Your right, the 1 7/8" headers are too small. I think a step header would work well. A 2" stepped to 2 1/8" with a 4" collector should be perfect. We do have 4" flanges but have not been able to find gaskets for them, you would have to make gaskets for them. If you are trying to run the exhaust system to the outside of the frame, it would be difficult as our collectors face back along side the transmission. Thanks again, Dan Lemons.

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