Pacemaker PH5014 Headers – Holden EK EJ EH HD HR HK HG 173/186/202 Red Motor (Powerglide Auto)

Pacemaker PH5014 headers are engineered for classic Holden Red Motor vehicles fitted with Powerglide automatic transmissions. Designed with an interference-style layout, these extractors provide improved torque, stronger mid-range response and enhanced overall drivability. Perfect for restored cruisers, weekend street cars and period-correct performance builds.

Key Features

• Interference design for balanced torque and performance
• Mandrel-bent pipework for maximum flow efficiency
• Compatible with XU-1 triple carburettor setups
• Ceramic coating available – see product code PHC70
• Australian-made quality and construction

Technical Specifications

• Primary Pipes: 38mm [1.50"]
• Secondary Pipes: 51mm [2.00"]
• Outlet Size: 57mm [2.25"]
• Material: Mild steel, mandrel bent
• Gasket: DSF002 (sold separately)

Engine Airflow (Verified)

On average, a Holden 202 Red Motor draws ~3,360 L of air per minute and expels ~10,080 L per minute at 4000 rpm [@600 °C].
On average, a Holden 186 Red Motor draws ~3,094 L of air per minute and expels ~9,282 L per minute at 4000 rpm [@600 °C].
On average, a Holden 173 Red Motor draws ~2,878 L of air per minute and expels ~8,634 L per minute at 4000 rpm [@600 °C].

Notes

• Ceramic Coating – See part code PHC70
• Gasket – DSF002
• Fits vehicles equipped with XU-1 carburettor setups

Installation Tips

To avoid scratches during installation, wrap the headers in several layers of cling wrap. Trim the flange area, position the headers in the engine bay and install a few bolts. Once positioned, cut away the remaining wrap before tightening.

What’s Included

• Pacemaker PH5014 Header Set

Recommended With

• Gasket: DSF002
• Ceramic Coating: PHC70

Customer Support

For fitment help or phone orders – contact us:

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

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