Hooker Competition Long Tube Headers, 67-81 SBC, 1.625 In. Tube 3 In. Collector, Black Ceramic 2451-3HKR

Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer who is running either a stock or mildly-modified engine, Hooker Competition headers offer premium features at a very competitive price. Made of durable 16 gauge mild steel tubing, the Hooker Competition header design utilizes a long transition collector to reduce back pressure and increase exhaust flow. A perfect sealing surface is assured with the 5/16 in. machined flanges, with welded O-ring seals. Experience has proven that this flange size is ideal to maintain header integrity and be pliable enough to seal each exhaust port. Tubing is mandrel-bent to maintain metal strength and provide consistent tube diameter at radii to maximize performance. Hooker Competition headers have a standard finish that features a heat-cured, high-heat-resistant paint. Optionally, the famous Hooker Ceramic Thermal Barrier Coating is available.
The Darkside coating also provides improved thermal resistance as compared to traditional silver ceramic (1700 deg. F vs. 1300 deg. F) making it highly recommended for supercharged or nitrous applications as well as for reduced under-hood temperatures.
Features:

• Provides unique styling enhancement that is equally pleasing in either a nostalgic retro application or a modern hi-tech build. As this coating is not burnished after its application, the surface appearance is more consistent than that of a silver ceramic
• Increased corrosion protection ensures long service life and maintained appearance of investment
• High-efficiency thermal properties limit heat migration through the header assembly, which in turn lowers under-hood temperatures for more performance
• Provides a higher heat tolerance threshold than available from silver ceramics (ours or any of our competitor's) and is therefore recommended for any applications producing elevated exhaust gas temperatures, such as when using superchargers and/or nitrous
• Formulated to withstand extreme temperatures (stability rating is 1700 deg F vs 1300 deg F on silver ceramic) without discoloration and maintains excellent adhesion even after repeated thermal cycling
• Works with factory power steering and power brakes

Specifications:

• Collector Diameter: 3.00 inch
• Header Finish: Black Ceramic
• Header Style: Long Tube
• Primary Tube Dia.: 1-5/8 inch
• Tube Material: Mild Steel

Manufacturer Part Number : 2451-3HKR

Part Notes:

Fits 67-81 Camaro, 65-89 Chevy Full Size, 64-87 Chevelle/El Camino, 70-87 Monte Carlo, 68-79 Nova, 78-81 Pontiac Firebird/Trans Am, 77-87 Pontiac Phoenix/Ventura/Grand Prix, 78-87 Olds Cutlass/442, 265-400 SB Chevy, Tube Size 1.6250 in. x 30 in. O.D., Collector Size 3 in. O.D. Does not fit with angle plug heads or raised port heads. Installation requires air conditioning bracket #10925HKR left side or 10926HKR right side. On 1979 and later vehicles with short compressors, use short bracket. 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. 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. Hooker long tube headers do not come with header reducers.