Hooker Competition Headers – Ceramic Coated HOK-39021HKR
1965-1974 Olds Cutlass/442, 1971-1974 Olds Delta 88, 1971-1974 Vista Cruiser Wagon: 400-455, Tube Size 1.75″ O.D. x 27″, Collector Size 3″ O.D., Collector Length 8″, Port Shape: Same As Port
Features:
- designed for easy, trouble-free fit
- Industry’s best welds for durability
- Tuned-length primary tubes for better performance
- Light weight & sturdy 16 gauge tubing
- Long transition collector for decreased back pressure
- 5/16” machined flanges for a perfect seal
- All necessary hardware included for a complete installation
- Mandrel-bent tubing for smooth exhaust flow
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:
| Brand | Hooker |
| Bolt size | 3/8-16 x 3/4 |
| CARB (California) Compliant | No |
| Category | Exhaust |
| Collector Diameter | 3.00 inch |
| Emission Code | 4 |
| Engine | Oldsmobile V8 |
| Header Finish | Silver Ceramic |
| 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 |
| Oldsmobile | 442 | 1965 to 1971 |
| Oldsmobile | Cutlass | 1965 to 1974 |
| Oldsmobile | Delta 88 | 1971 to 1974 |
| Oldsmobile | Vista Cruiser | 1971 to 1974 |

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