Exhaust Headers HU088STM – Leyland P76 4.4L V8 (1973–1974)

HU088STM Exhaust Headers (extractors) are engineered for the Leyland P76 4.4L V8, offering a tuned-length design to improve flow, torque, and overall engine response. Built for classic restorations and performance upgrades, these headers enhance both power and efficiency while maintaining a clean, factory-style fit.

Key Specifications

• Part Number: HU088STM
• Vehicle Application: Leyland P76 4.4L V8 (1973–1974)
• Header Design: Tuned-length for street performance
• Primary Pipes: 1⅜"
• Secondary Pipes: –
• Outlet Size: 2.00"
• Construction: Mandrel-bent mild steel
• Made to Order: 4-6 weeks

Why Good Exhaust Systems Matter

At 4000 rpm, the Leyland 4.4L V8 engine draws approximately 9,000 L/min of intake air and expels around 27,000 L/min of exhaust gas. These tuned headers are designed to optimise scavenging efficiency in this range, resulting in stronger mid-range torque and smoother power delivery.

Installation Tips

A great way to fit exhaust headers without scratching the headers or the engine bay during installation is to wrap them in cling wrap. The more layers added, the better the protection. Once positioned, trim around the flange, fit a few bolts, and remove the wrap before final tightening.

Recommended With

• High-temperature sealant – see Exhaust Sealant
• Header gaskets – contact us to confirm correct part

Customer Support

For phone orders, advice, or part enquiries – contact us:

📞 Call Now: +61 2 9547 3511 ✉️ Email Us

🇦🇺 Best Mufflers
87A Planthurst Road, Carlton NSW 2218, Australia
Exhaust Systems Since 1983