Seller notes

These fit all 1973-1978 GMC Motorhome / Transmode with Oldsmobile 455 or 403 engines. Freshly Ceramic coated by Young Gun Performance Coatings in Rancho Cucamonga who do all Doug Thorley production. OverviewBrand:Doug Thorley HeadersManufacturer's Part Number:THY-355Y-CPart Type:HeadersProduct Line:Doug Thorley Tri-Y HeadersSummit Racing Part Number:DTE-355Y-CUPC:812721020577Header Style:Tri-Y one-pieceHeader Material:SteelPrimary Tube Outside Diameter (in.):1 3/4 in.Header Color:Silver ceramic ...

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