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  #1 (permalink)  
Old 01-17-2005, 10:19 PM
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Crossmember

I have the '80 impala.. the crossmember for it only allows a single exhaust to pass it.. Is there a way i can alter it without sacrificing the strength??? also is there a new one i can buy that will allow dual exhaust??? It's going to be for a th350. Thanks for the help...
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Old 01-17-2005, 10:27 PM
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I had to do this for my 86 Caprice. You have to notch the crossmember. Mine has about an 1 1/4" cut out of it for about a 6 inch span. Steel was welded onto the inside for strength and then it was boxed in.

I'll take a picture for you tomorrow and post it on here.
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Old 01-18-2005, 02:12 AM
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crossmember

I did this in my g-body



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Old 01-18-2005, 06:19 AM
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When I put a dual system on my '86 G Body, my exhaust shop steered me toward the Hedman shorty style. That gave them more room to manuever with the exhaust pipe. When they got to the crossmember, they made a slight oval in the pipe to go under. Worked like a charm. The system is barely visible.
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Old 01-18-2005, 08:58 AM
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There is a guy from Malibu racing .com that build crossmembers from scratch for a good price and does great work. Mine was for a g-body but he might make some others. If you want his e-mail let me know. He built mine for $163.00 delivered to my door and it is sweet and very strong.
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Old 01-18-2005, 09:30 PM
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I'm sorry I didn't get a picture up, I had some car problems on my way home from classes today, it tied up my free time when I got home. I have to work after my classes are over tomorrow. I won't get home until about 9 PM, I promise I'll post it then.
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Old 01-19-2005, 11:02 AM
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Re: crossmember

Quote:
Originally posted by bracketeer
I did this in my g-body



bracketeer I certainly hope this never has to pass an inspection.
mic - key, mouse.
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Old 01-19-2005, 05:33 PM
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Ok this was the best I could do out in the dark kneeling in the snow. That is the correct way to notch a crossmember. There was steel welded inside for strength before it was boxed in.

For my own reputation the glasspacks and copper wire hangers are temporary and just there to keep the noise down for the engine break-in. A real exhaust system is getting put on, X pipe and all.
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