Hooker Competition Long Tube Headers – Painted HOK-2463HKR
Long Tube Headers for 1969-1974 Blazer/Jimmy/Yukon/Tahoe 2DR. (4WD), 1969-1974 1/2, 3/4 & 1 Ton Truck (4WD): 396-502ci engines, 1.75″ Primary Tube diameter x 31″, 3.0″ Collector, 8″ Collector Length, Header Port Shape: Same As Engine Port;
Features:
- 5/16” machined flanges for a perfect seal
- Sturdy 16 gauge tubing
- Works with factory power steering, power brakes and air conditioning
- All necessary hardware included for a complete installation
- Designed for strong performance
- Mandrel-bent tubing for smooth exhaust flow
- Tuned-length primary tubes for maximum exhaust scavenging and velocity
- Industry’s best welds for durability
- Long transition collector for decreased back pressure
Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer, 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. 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.
Attributes:
| Category | Exhaust |
| Bolt size | 3/8-16 x 3/4 |
| Brand | Hooker |
| CARB (California) Compliant | No |
| Collector Diameter | 3.00 inch |
| Emission Code | 4 |
| Engine | GM Big Block |
| Header Finish | Black Paint |
| Header Style | Long Tube |
| part type | Exhaust Header |
| Primary Tube Dia. | 1-3/4 inch |
| Product Type | Headers |
| Sub Category | Exhaust Manifolds |
| Tube Material | Mild Steel |
Vehicle Applications:
| Make | Model | Years |
| Chevrolet | Blazer | 1973 to 1974 |
| Chevrolet | K10 Pickup | 1969 to 1974 |
| Chevrolet | K10 Suburban | 1969 to 1974 |
| Chevrolet | K20 Pickup | 1969 to 1974 |
| Chevrolet | K20 Suburban | 1969 to 1974 |
| Chevrolet | K30 Pickup | 1969 to 1974 |
| GMC | Jimmy | 1973 to 1974 |
| GMC | K15/K1500 Pickup | 1969 to 1974 |
| GMC | K15/K1500 Suburban | 1969 to 1974 |
| GMC | K25/K2500 Pickup | 1969 to 1974 |
| GMC | K25/K2500 Suburban | 1969 to 1974 |
| GMC | K35/K3500 Pickup | 1969 to 1974 |


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