FlowTechHeaders are precision engineered and leak tested to get maximum performance and fuel economy from your engine. Each header is formed from specially selected .049 cold roll flash controlled tubing, and features sturdy, leak–proof O–ring port seals, and all FlowTechHeaders include all mounting hardware including bolts, nuts, satin black paint finish or with a specially formulated, NASA–developed silver luster ceramic coating for rust and corrosion resistance.
1963–1982 Corvette 283–400ci Standard Headers Primary Tube Collector Size 1.625 in. x 3 in., Black High Temp Paint
Installation Notes
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 heaters to break in a new engines to aviod 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.
Features
Fuel Economy From The Engine
Leak Test For Max Performance
Mandrel-Formed Power Plenum
Leakproof O-Ringed Port Seals
Include All Mounting Hardware
Constructed of .049 cold roll flash mild steel tubing