Pacemaker Headers PH4499 – Ford Fairlane NA–NL 3.9L & 4.0L SOHC

Pacemaker Headers PH4499 (extractors) are a performance upgrade for Ford Fairlane NA, NB, NC, NF, and NL models running the 3.9L & 4.0L SOHC inline-six. The interference design improves exhaust scavenging, reduces back pressure, and enhances torque across the rev range. Built for restorations or daily performance driving, they deliver a clean fit, excellent sealing, and the proven reliability that Pacemaker is known for.

Key Features

• Interference design for torque and throttle response improvement
• Mandrel-bent 45mm primary pipes, 51mm secondaries, 63mm flanged outlet
• Machined flanges ensure a strong, leak-free seal
• Smooth merge collectors for enhanced scavenging and exhaust efficiency
• Direct-fit to factory mounts and connection points

Construction

• High-grade steel tubing with precise welds for durability
• Pacemaker Blue heat-resistant finish rated to 800°C
• Made in Australia to exacting standards

Additional Options

• Ceramic Coating (PHC50): Enhances heat management and corrosion protection
• Gasket (DSF061): Available separately for complete sealing
• High-Flow Catalytic Converter: See product code CAT4499-80-100

Fitment Notes

• Suits Ford Fairlane NA–NL 3.9L & 4.0L SOHC engines
• Protect painted surfaces and wrap headers during trial fitment
• Clearance may vary depending on engine mounts or steering alignment
• Recommended to re-torque after initial heat cycle

What’s Included

• Pacemaker PH4499 header assembly
• Header bolts [12]

Recommended With

• New exhaust gaskets (DSF061 sold separately)
• High-Flow Catalytic Converter (CAT4499-80-100)
• Exhaust sealant and clamps for installation

Performance & Airflow

• The Ford 4.0L SOHC engine draws approximately 8,500 L/min intake air and expels 25,000 L/min exhaust gas at 5,000 rpm
• Pacemaker’s tuned interference design optimises exhaust velocity for better mid-range performance

Warranty & Compliance

• Backed by Pacemaker’s 2-year manufacturer warranty (standard terms apply)
• Verify emissions and registration compliance in your state

Customer Support

For advice, orders, or technical support:

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

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