Ceramic Header block Manifolds for FBD 350-454

Flowtech headers are designed to provide optimum exhaust flow for increased horsepower, torque, fuel economy, and improved throttle response. Leak-tested for maximum performance, they feature the industry's best welds for durability and are carefully engineered for precise fit. Available for an wide range of applications, they are offered in block hugger, competition, fenderwell, lakester, long tube, mid-length, shorty, upright, and turbo styles. Varying with the application, Flowtech headers are constructed from sturdy and lightweight cold-rolled mild steel or stainless steel for increased strength and durability. All tubing is mandrel-bent to provide consistent tubing diameter for smooth flow and increased exhaust velocity. Extra-thick, machined header flanges provide a leak-free seal and maximum strength. For long-term rust and corrosion-resistance, available finishes include natural and polished stainless steel, high heat-resistant black paint, or a satin silver metallic ceramic thermal barrier coating. All mounting hardware and premium gaskets are included. Features Shorty-style headers will work with catalytic converter equipped vehicles; head pipe fabrication may be required. Leakproof o-ringed port seals on select headers. It is provided to work with factory power steering and power brakes. Where applicable, welded-in collector merge spears control exhaust gas re-entry into primary tubes. Compatibility 1988-1995 Chevy/GMC Truck 2WD & 4WD 1500/2500/3500. Specifications Header Style: Full-length. Header Material: Steel. Header Finish: Silver ceramic coated. Weld-Up: No. Primary Tube Diameter ( in): 1 5/8 in.. Flange Style: Standard. Collector Attachment: 3-bolt flange. Collector Diameter: 3.000 in.. Collector Reducers Included: Yes. Collector Reducer Exit Diameter: 2.500 in.. Cylinder Head Port Shape: D-port. Tuned: No. Primary Tube Gauge: 18-gauge.