Big block chevy bassett headers. 2 1/8 Primaries and 4 inch collector. These have evacuation fittings on collectors and they are a dry header the water ports are there but brazed shut before they were coated could re tap easyly if need be
.Just had them ceramic coated inside and out by EMBEE Coatings. Located in So Cal. 350 + ride OBO cost 250 just to have them coated.