Pacemaker | 1¾" Tuned Exhaust Headers | Holden HQ HJ HX HZ WB LS Engine Swap | PH5342 L/R
Pacemaker 1¾" Tuned Design Exhaust Headers - Holden HQ-WB LS Engine Swap - PH 5342 L/R
Modernize your classic Holden HQ, HJ, HX, HZ, or WB with the power of an LS V8 using these high-quality Pacemaker Tuned design exhaust headers. Specifically engineered for LS1 (Gen III), LS2, and LS3 (Gen IV) engine conversions, these 4-into-1 headers feature 1¾" primary pipes. This design provides the perfect balance of exhaust flow and clearance, making it an ideal choice for street-driven performance builds and engine swaps requiring a professional fit and finish.
Features:
This product offers the following high-performance features:
- TUNED 4-into-1 Design: Precision-engineered to optimize exhaust scavenging and improve power delivery across the RPM range.
- Optimized Pipe Sizing: Features 1¾" (44mm) primary pipes leading to a 3" (76mm) outlet for efficient gas flow from 5.7L, 6.0L, and 6.2L engines.
- Conversion Specific: Tailored for the Holden HQ-WB chassis to ensure proper fitment during an LS engine swap.
- Full Accessory Support: Compatible with both Power Steering and Air Conditioning systems for a complete and functional build.
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5342 | Gasket | DSF 138 |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | Yes | Secondary Pipe | - |
| Oxy Sen | Yes | Outlet | 3" (76mm) |
| Fitting Time | 2 Hrs | Design | Tuned 4-into-1 |
Important Notes:
- Engine Suitability: Engineered for 5.7L, 6.0L, and 6.2L LS V8 engines (LS1, LS2, LS3).
- Suitable for both Manual and Automatic transmissions.
- Includes Oxygen Sensor provisions for modern ECU integration.
- Designed specifically for the engine conversion market in HQ-WB series Holdens.
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 (LS ENGINE SWAP) | ||||||||
| Holden | Kingswood / Premier / Monaro / Statesman | 1971 | 1984 | Sedan / Ute / Wagon / Coupe / Statesman | HQ-HJ-HX-HZ-WB | 5.7L / 6.0L / 6.2L LS V8 | Manual & Automatic | 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:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Pacemaker | 1¾" Tuned Exhaust Headers | Holden HQ HJ HX HZ WB LS Engine Swap | PH5342 L/R
Pacemaker | 1¾" Tuned Exhaust Headers | Holden HQ HJ HX HZ WB LS Engine Swap | PH5342 L/R
Pacemaker 1¾" Tuned Design Exhaust Headers - Holden HQ-WB LS Engine Swap - PH 5342 L/R
Modernize your classic Holden HQ, HJ, HX, HZ, or WB with the power of an LS V8 using these high-quality Pacemaker Tuned design exhaust headers. Specifically engineered for LS1 (Gen III), LS2, and LS3 (Gen IV) engine conversions, these 4-into-1 headers feature 1¾" primary pipes. This design provides the perfect balance of exhaust flow and clearance, making it an ideal choice for street-driven performance builds and engine swaps requiring a professional fit and finish.
Features:
This product offers the following high-performance features:
- TUNED 4-into-1 Design: Precision-engineered to optimize exhaust scavenging and improve power delivery across the RPM range.
- Optimized Pipe Sizing: Features 1¾" (44mm) primary pipes leading to a 3" (76mm) outlet for efficient gas flow from 5.7L, 6.0L, and 6.2L engines.
- Conversion Specific: Tailored for the Holden HQ-WB chassis to ensure proper fitment during an LS engine swap.
- Full Accessory Support: Compatible with both Power Steering and Air Conditioning systems for a complete and functional build.
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5342 | Gasket | DSF 138 |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | Yes | Secondary Pipe | - |
| Oxy Sen | Yes | Outlet | 3" (76mm) |
| Fitting Time | 2 Hrs | Design | Tuned 4-into-1 |
Important Notes:
- Engine Suitability: Engineered for 5.7L, 6.0L, and 6.2L LS V8 engines (LS1, LS2, LS3).
- Suitable for both Manual and Automatic transmissions.
- Includes Oxygen Sensor provisions for modern ECU integration.
- Designed specifically for the engine conversion market in HQ-WB series Holdens.
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 (LS ENGINE SWAP) | ||||||||
| Holden | Kingswood / Premier / Monaro / Statesman | 1971 | 1984 | Sedan / Ute / Wagon / Coupe / Statesman | HQ-HJ-HX-HZ-WB | 5.7L / 6.0L / 6.2L LS V8 | Manual & Automatic | 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:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Pacemaker 1¾" Tuned Design Exhaust Headers - Holden HQ-WB LS Engine Swap - PH 5342 L/R
Modernize your classic Holden HQ, HJ, HX, HZ, or WB with the power of an LS V8 using these high-quality Pacemaker Tuned design exhaust headers. Specifically engineered for LS1 (Gen III), LS2, and LS3 (Gen IV) engine conversions, these 4-into-1 headers feature 1¾" primary pipes. This design provides the perfect balance of exhaust flow and clearance, making it an ideal choice for street-driven performance builds and engine swaps requiring a professional fit and finish.
Features:
This product offers the following high-performance features:
- TUNED 4-into-1 Design: Precision-engineered to optimize exhaust scavenging and improve power delivery across the RPM range.
- Optimized Pipe Sizing: Features 1¾" (44mm) primary pipes leading to a 3" (76mm) outlet for efficient gas flow from 5.7L, 6.0L, and 6.2L engines.
- Conversion Specific: Tailored for the Holden HQ-WB chassis to ensure proper fitment during an LS engine swap.
- Full Accessory Support: Compatible with both Power Steering and Air Conditioning systems for a complete and functional build.
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5342 | Gasket | DSF 138 |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | Yes | Secondary Pipe | - |
| Oxy Sen | Yes | Outlet | 3" (76mm) |
| Fitting Time | 2 Hrs | Design | Tuned 4-into-1 |
Important Notes:
- Engine Suitability: Engineered for 5.7L, 6.0L, and 6.2L LS V8 engines (LS1, LS2, LS3).
- Suitable for both Manual and Automatic transmissions.
- Includes Oxygen Sensor provisions for modern ECU integration.
- Designed specifically for the engine conversion market in HQ-WB series Holdens.
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 (LS ENGINE SWAP) | ||||||||
| Holden | Kingswood / Premier / Monaro / Statesman | 1971 | 1984 | Sedan / Ute / Wagon / Coupe / Statesman | HQ-HJ-HX-HZ-WB | 5.7L / 6.0L / 6.2L LS V8 | Manual & Automatic | 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:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.











