Hooker 2463HKR Exhaust Header

Compatible with 1969-1974 Blazer/Jimmy/Yukon/Tahoe 2DR. (4WD), 1969-1974 1/2, 3/4 &amp; 1 Ton Truck (4WD): 396-502ci engines, 1.75 in. Primary Tube diameter x 31 in., 3.0 in. Collector, 8 in. Collector Length, Header Port Shape: Same As Engine Port;;<br><br>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.;

• Tuned-length primary tubes for maximum exhaust scavenging and velocity
• Mandrel-bent tubing for smooth exhaust flow
• Sturdy 16 gauge tubing
• Long transition collector for decreased back pressure
• 5/16” machined flanges for a perfect seal
• Industry’s best welds for durability
• Designed for strong street performance
• All necessary hardware included for a complete installation
• Works with factory power steering, power brakes and air conditioning