1968-1974 Chevy/GMC, 2WD 1/2, 3/4 & 1-Ton Trucks/Blazer/Jimmy, 1973-1974 2WD Suburban, 1968-1974 1/2 & 3/4 Ton 4WD Trucks, 1973-1974 4WD Blazer/Jimmy K5/Suburban: 396-454, Tube Size 1.75", Collector Size 3". Automatic transmission only.

Part Number: 31530FLT

Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16" flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.

Features and Benefits

• Fuel Economy From The Engine
• Leak Test For Max Performance
• Ceramic Headers
• Rust And Corrosion Resistance
• Mandrel-Formed Power Plenum
• Leakproof O-Ringed Port Seals
• Include All Mounting Hardware

Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty._x000D_ Does not fit manual transmissions.