Pacemaker | 1 3/4" Tri-Y Competition Headers | Holden HQ-WB 304-355 5.0L EFI Conv | PH5275 L/R
Pacemaker 1 3/4" Competition Tri-Y Headers - Holden HQ-WB 304-355 5.0L EFI - PH5275 L/R
Maximize the performance of your EFI-converted classic Holden with these premium Pacemaker Competition Tri-Y headers. Specifically designed for HQ through WB models fitted with a 5 Litre EFI motor (304) or EFI heads on a traditional block, these headers deliver exceptional exhaust scavenging for high-performance 304, 355, or supercharged builds. Note: Engineered for engine conversions using VN-VT Series 1 engine platforms.
Features:
This product offers the following high-performance features:
- Competition Tri-Y Design: Features large 1¾" (44mm) primary pipes transitioning to 2" (51mm) secondaries for maximum torque and high-rev flow.
- Stroker & Supercharger Ready: Specifically tuned to support 5.7 Litre stroked engines or supercharged applications requiring high-volume exhaust evacuation.
- Broad Compatibility: Precision engineered to clear various manual and automatic transmissions, including Supra 5-speed and Turbo 700 conversions.
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5275 | Gasket | DSF 63 |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | Yes | Secondary Pipe | 2" (51mm) |
| Oxy Sen | Yes | Outlet | 3" (76mm) |
| E.G.R | N/A | Y Branch | N/A |
| Fitting Time | 2 Hrs | Design | Competition Tri-Y |
Important Notes:
- Compatible with High Energy Sump (including HE2101).
- Will clear HQ type mechanical clutch linkages.
- Fits a wide range of transmissions including Australian 4-speed, VN-VS 5-speed, Supra 5-speed, Trimatic, and Turbo 350/400/700.
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 / Ute | 1971 | 1984 | Sedan / Wagon / Ute / Van | HQ-WB | 304 / 308 EFI | 5.0L Engine Conv. | 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
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Pacemaker | 1 3/4" Tri-Y Competition Headers | Holden HQ-WB 304-355 5.0L EFI Conv | PH5275 L/R
Pacemaker | 1 3/4" Tri-Y Competition Headers | Holden HQ-WB 304-355 5.0L EFI Conv | PH5275 L/R
Pacemaker 1 3/4" Competition Tri-Y Headers - Holden HQ-WB 304-355 5.0L EFI - PH5275 L/R
Maximize the performance of your EFI-converted classic Holden with these premium Pacemaker Competition Tri-Y headers. Specifically designed for HQ through WB models fitted with a 5 Litre EFI motor (304) or EFI heads on a traditional block, these headers deliver exceptional exhaust scavenging for high-performance 304, 355, or supercharged builds. Note: Engineered for engine conversions using VN-VT Series 1 engine platforms.
Features:
This product offers the following high-performance features:
- Competition Tri-Y Design: Features large 1¾" (44mm) primary pipes transitioning to 2" (51mm) secondaries for maximum torque and high-rev flow.
- Stroker & Supercharger Ready: Specifically tuned to support 5.7 Litre stroked engines or supercharged applications requiring high-volume exhaust evacuation.
- Broad Compatibility: Precision engineered to clear various manual and automatic transmissions, including Supra 5-speed and Turbo 700 conversions.
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5275 | Gasket | DSF 63 |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | Yes | Secondary Pipe | 2" (51mm) |
| Oxy Sen | Yes | Outlet | 3" (76mm) |
| E.G.R | N/A | Y Branch | N/A |
| Fitting Time | 2 Hrs | Design | Competition Tri-Y |
Important Notes:
- Compatible with High Energy Sump (including HE2101).
- Will clear HQ type mechanical clutch linkages.
- Fits a wide range of transmissions including Australian 4-speed, VN-VS 5-speed, Supra 5-speed, Trimatic, and Turbo 350/400/700.
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 / Ute | 1971 | 1984 | Sedan / Wagon / Ute / Van | HQ-WB | 304 / 308 EFI | 5.0L Engine Conv. | 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.
Original: $584.66
-65%$584.66
$204.63Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Pacemaker 1 3/4" Competition Tri-Y Headers - Holden HQ-WB 304-355 5.0L EFI - PH5275 L/R
Maximize the performance of your EFI-converted classic Holden with these premium Pacemaker Competition Tri-Y headers. Specifically designed for HQ through WB models fitted with a 5 Litre EFI motor (304) or EFI heads on a traditional block, these headers deliver exceptional exhaust scavenging for high-performance 304, 355, or supercharged builds. Note: Engineered for engine conversions using VN-VT Series 1 engine platforms.
Features:
This product offers the following high-performance features:
- Competition Tri-Y Design: Features large 1¾" (44mm) primary pipes transitioning to 2" (51mm) secondaries for maximum torque and high-rev flow.
- Stroker & Supercharger Ready: Specifically tuned to support 5.7 Litre stroked engines or supercharged applications requiring high-volume exhaust evacuation.
- Broad Compatibility: Precision engineered to clear various manual and automatic transmissions, including Supra 5-speed and Turbo 700 conversions.
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5275 | Gasket | DSF 63 |
| P/Steering | Yes | Primary Pipe | 1¾" (44mm) |
| Air Con | Yes | Secondary Pipe | 2" (51mm) |
| Oxy Sen | Yes | Outlet | 3" (76mm) |
| E.G.R | N/A | Y Branch | N/A |
| Fitting Time | 2 Hrs | Design | Competition Tri-Y |
Important Notes:
- Compatible with High Energy Sump (including HE2101).
- Will clear HQ type mechanical clutch linkages.
- Fits a wide range of transmissions including Australian 4-speed, VN-VS 5-speed, Supra 5-speed, Trimatic, and Turbo 350/400/700.
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 / Ute | 1971 | 1984 | Sedan / Wagon / Ute / Van | HQ-WB | 304 / 308 EFI | 5.0L Engine Conv. | 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.











