63-91 GM Small Block Hooker Competition Long Tube Header - Ceramic Coated 2452-1HKR

1969-1974 Blazer / Suburban / Jimmy / Carryall / Yukon / 1-Ton Crew Cab 2WD, 63-74 1/2, 3/4 and 1 Ton Truck 2WD: 265-400 Tube Size 1.625 in. x 27 in. O.D.,Collector Size 2.5" O.D., Collector Length 8 in., Port Shape: Same As Port

Does not fit with angel plug or raised port heads. 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" 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.

Features:

• Tuned-length primary tubes for street performance
• Mandrel-bent tubing for smooth exhaust flow
• Light weight & 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 easy, trouble-free fit
• All necessary hardware included for a complete installation
• Works with factory power steering, power brakes and air conditioning