Need help identifying truck headers - Chevelle Tech
Headers and Exhaust Discussion related to Exhaust systems and headers.
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post #1 of 3 (permalink) Old Dec 1st, 19, 1:40 PM Thread Starter
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Tom
 
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Need help identifying truck headers

I just purchased a 1978 GMC K25 yesterday and it has a set of tri-y headers on it, but no tag. The PO said they were Edelbrock, if so I had no idea Edelbrock made full length tri-y headers for a square body. To me they look similar to Doug's Headers, but like I said there is no identification tag.



Is anyone able to help me identify what they are? Thanks.
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post #2 of 3 (permalink) Old Dec 1st, 19, 11:12 PM
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Re: Need help identifying truck headers

Doug's are the only tri-y I can remember seeing for square bodies. How thick is the flange? I think Doug's all have 3/8Ē flanges.

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post #3 of 3 (permalink) Old Dec 2nd, 19, 7:44 AM Thread Starter
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Re: Need help identifying truck headers

They are 3/8" flanges. Doug Thorley also makes tri-y's for square bodies, but the flanges are different which is why I thought they might be Doug's. I do not recall ever seeing Edelbrock offer a tri-y for the square bodies, they did have shorties that replaced the 81-86 exhaust manifolds. Thanks.
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