Header Help - Chevelle Tech
Headers and Exhaust Discussion related to Exhaust systems and headers.

 
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post #1 of 6 (permalink) Old Mar 23rd, 20, 1:20 PM Thread Starter
KMR
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Kevin
 
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Header Help

I am in the market for new headers on my 71 Convertible 400 sbc. I am looking at Hedman headers (68290) and curious if anyone has any experience with these on a small block. Any other recommendation based on experience would be appreciated.

1971 Chevelle Malibu Convertible
Dark Green Metalic, Pearl stripes, Black Top
400 sbc, TH350, Posi w/ 3.55's

Murphy's Law always prevails.........
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post #2 of 6 (permalink) Old Mar 23rd, 20, 3:00 PM
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I bought Hedman Elites (69 396) based off input here and couldn’t be happier ! Used furnished gaskets and header bolts. Perfect fit, not a single “hammered clearance dent”, thick flanges and 14 ga pipes.

Only issue, if you like to uncap headers is the doughnut collectors which can’t be opened easily....but, while closed, provides a better seal.
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post #3 of 6 (permalink) Old Mar 25th, 20, 11:12 PM
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I'm not sure of the part number, but I have the elite version of those same headers on the 406 in my 70. They clear everything just fine. I had to move the brake line in the passenger side frame about a quarter of an inch to clear, but that's it. I have a 4 speed and they clear all of the linkage, including the back drive linkage. I've had them 10 years and the factory coating was starting to flake, so I had Jet Hot coat them this winter. Also, the 3/8" flange on the elite headers is worth the extra money.
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post #4 of 6 (permalink) Old May 14th, 20, 12:48 AM
John
 
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Re: Header Help

Bravo.. I have the Cheapo Jegs and the left side Header hangs below the frame a lot and I have "clearanced" them several times hitting them on dips in the road. Added KYB Gas Adjust Shocks that have cut this down. I am lowered down however but wondered if those you have do not hang low on the one side. No reason for this but most likely their Universal fit?

1965 El Camino, Black with Flames. 350 Crate engine, Vortec Heads, Flat tops, Comp 268HE, Headers, 700r4, 3.73 posi. Old school look Cragars. Power Steering, Vintage Air & Disc Brakes.
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post #5 of 6 (permalink) Old May 14th, 20, 9:57 AM
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Rhys
 
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I have the summit brand ones. Happy with the fit. This is on a 72 sbc. I have 2 inch unit drop. This is I ly pic have, and it's on the lift.
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post #6 of 6 (permalink) Old May 16th, 20, 12:40 AM
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Quote:
Originally Posted by arnolds64 View Post
Bravo.. I have the Cheapo Jegs and the left side Header hangs below the frame a lot and I have "clearanced" them several times hitting them on dips in the road. Added KYB Gas Adjust Shocks that have cut this down. I am lowered down however but wondered if those you have do not hang low on the one side. No reason for this but most likely their Universal fit?
They are equal on both sides. Never had a clearance issue with the height. My back drive linkage from the transmission clears them also, which I've heard can be an issue with manual transmissions and full length headers.
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