These headers are just the ticket for you B/B Chevy guys. Theyfeature 2 inch primary tubes, 3-1/2 inch collectors, and must be used with original big block motor mounts to fit properly. Built with surface machined thick steel flanges for a great seal and mandrel bent mild steel tubing.Available with metallic ceramic coating. Unlike paint or chrome, metallic ceramic coating is easy to keep clean, resists rust and corrosion and will not discolor. Metallic ceramic coating also reduces underhood temperatures. Headers come with installation hardware, collector reducers, gaskets and instructions.Item DetailsHeader Dimension Explanation Chart
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