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Description
Pacemaker | 1 5/8" Tri-Y Headers | Holden HQ-WB Small Block Chev 283-400 V8 | PH5310 L/RPacemaker Tri Y Performance Headers Holden HQ WB Small Block Chev V8 PH5310 L R Upgrade the performance of your classic Holden HQ through WB series with the Pacemaker PH 5310 Tri Y headers. Specifically designed for Small Block Chevrolet V8 conversions (ranging from 283 to 400 cubic inches), these headers are the industry standard for fitment and flow. The Tri Y design is engineered to deliver a significant increase in low to mid range torque, making
Pacemaker Tri-Y Performance Headers - Holden HQ-WB Small Block Chev V8 - PH5310 L/R
Upgrade the performance of your classic Holden HQ through WB series with the Pacemaker PH 5310 Tri-Y headers. Specifically designed for Small Block Chevrolet V8 conversions (ranging from 283 to 400 cubic inches), these headers are the industry standard for fitment and flow. The Tri-Y design is engineered to deliver a significant increase in low-to-mid range torque, making it perfect for street performance and cruisers. Constructed with 1⅝" (41mm) primary pipes and 2" (51mm) secondaries, these headers provide the ideal balance of exhaust gas velocity and volume. Proudly Australian-made, they ensure high-quality mandrel-bent durability for your SBC-powered Holden.
Features:
This product offers the following performance features:
- Tri-Y Design: Optimized for a broad power band and improved mid-range torque.
- Versatile SBC Fitment: Compatible with 283, 302, 305, 307, 327, 350, and 400 Small Block Chev engines.
- High-Quality Piping: Mandrel-bent 1⅝" (41mm) primary pipes for smooth exhaust flow.
- Compact Outlet: 2¼" (57mm) outlet designed for efficient scavenging and easy integration into performance exhaust systems.
- Accessories: Fully compatible with Power Steering and Air Conditioning.
| Feature | Value | Feature | Value |
|---|---|---|---|
| Part # | PH 5310 | Gasket | DSF 9 |
| Primary Pipe | 1⅝" (41mm) | Secondary Pipe | 2" (51mm) |
| Outlet | 2¼" (57mm) | Fitting Time | 2 Hrs |
| P/Steering | Yes | Air Con | Yes |
Important Notes:
- Transmission: Will fit Turbo 400 and Powerglide automatic transmissions.
- Head Compatibility: Will NOT fit slant plug heads (Part No. PH5315 required) or raised port heads.
- Mounting: Must be used with original engine mounting spacers or Pacemaker spacers (Part # PEMP 350). Note: Spacers are side-specific (RH: 1¾” high, LH: 1¼” high).
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 | Kingswood / Belmont / Statesman | 1971 | 1984 | Sedan / Ute / Wagon / Panel Van | HQ, HJ, HX, HZ, WB | Small Block Chev (283-400) | 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:
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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