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Description
Pacemaker | Tuned Competition Headers | Holden HQ-WB 253-308 V8 | PH 5225 L/RPacemaker Tuned Competition Headers Holden HQ HJ HX HZ WB 253 308 V8 PH 5225 L R Maximize the power output of your classic Holden V8 with these Pacemaker Tuned Competition headers. Designed for the HQ through WB series fitted with 253 and 308 V8 engines, these headers feature a "Tuned" length design. This configuration is engineered to provide superior exhaust gas scavenging, resulting in significant horsepower and torque gains across the mid to high
Pacemaker Tuned Competition Headers - Holden HQ-HJ-HX-HZ-WB 253-308 V8 - PH 5225 L/R
Maximize the power output of your classic Holden V8 with these Pacemaker Tuned Competition headers. Designed for the HQ through WB series fitted with 253 and 308 V8 engines, these headers feature a "Tuned" length design. This configuration is engineered to provide superior exhaust gas scavenging, resulting in significant horsepower and torque gains across the mid-to-high RPM range—perfect for street machining and competitive use.
Features:
This product offers the following high-performance features:
- Tuned Design: Specifically calculated primary pipe lengths to optimize engine breathing and peak performance.
- High-Flow Primaries: Large 1¾" (44mm) primary pipes leading into a 3" (76mm) outlet for maximum exhaust flow.
- Mandrel Bent: Precision mandrel-bent tubing ensures consistent diameter throughout the bend for unrestricted flow.
- Transmission Versatility: Compatible with various performance gearboxes including Turbo 400 and Ford Toploader (with Hatfield bell housing).
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5225 | Gasket | DSF 9A |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | No | Secondary Pipe | - |
| Oxy Sen | N/A | Outlet | 3" (76mm) |
| E.G.R | N/A | Fitting Time | 2½ Hrs |
| Design | Tuned | Y Branch | N/A |
Important Notes:
- Transmission Fitment: Will fit Turbo 400 and Ford Toploader gearbox (with Hatfield bell housing).
- Clutch Compatibility: Will fit with HZ type cable clutch and Hydraulic Clutch conversions. Will NOT fit HQ type mechanical clutch.
- Exclusions: Will NOT fit column change automatic or manual vehicles. Will NOT fit Powerglide Auto.
- Air Conditioning: This part is not compatible with Air Conditioning systems.
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| Holden | Kingswood / Monaro / Belmont | 1971 | 1980 | Sedan / Coupe / Wagon / Ute | HQ, HJ, HX, HZ | 253, 308 V8 | Floor Shift Man & Auto | RWD |
| Holden | Statesman / One Tonner | 1980 | 1985 | LWB Sedan / Cab-Chassis | WB | 253, 308 V8 | Floor Shift Man & Auto | RWD |
| Product | Warranty Period |
|---|---|
| Pacemaker Headers | Two (2) years. |
| Pacemaker King Brown 4x4 Exhaust systems | Five (5) years. |
| Pacemaker Sports exhaust systems | Five (5) years. |
| Fabrication products and accessories | One (1) year. |
Payment & Security:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy