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**Warrens69GMC** · 10-13-2022, 09:27 PM

On a 383, wouldn't you want 1 5/8" or 1 3/4" for it to breathe?

Which ones would you do for 1 5/8" and 1 3/4"?

10-13-2022, 09:27 PM	#8
Warrens69GMC Registered User Join Date: Jan 2003 Location: Safford,AZ Posts: 3,626	Re: Headers for a c10 On a 383, wouldn't you want 1 5/8" or 1 3/4" for it to breathe? Which ones would you do for 1 5/8" and 1 3/4"? __________________ 1969 307, t350 1950 Chevy Wagon 1978 Big 10 1967 C10, 250,3-OTT