Ford Falcon XR XT XW XY 289 302 Windsor V8 Pacemaker Headers PH4020

Pacemaker PH4020 headers (extractors) are designed for Ford Falcon XR, XT, XW and XY models fitted with 289 or 302 Windsor V8 engines using standard cylinder heads. They suit both manual and automatic transmission applications and are compatible with power steering.

PH4020 uses Pacemaker's Tri-Y design with 38mm (1½") primary pipes, 44mm (1¾") secondary pipes and 51mm (2") outlets. The Tri-Y configuration is designed to improve exhaust-gas scavenging and flow, helping improve torque, throttle response and overall engine performance.

IMPORTANT – PH4020 will not fit GT40P cylinder heads due to the different spark-plug angle. See PH4032 or PH4033 for GT40-head applications.

Not sure which headers to use for your Windsor engine? Read our Ford Windsor header guide here.

Key Features

• Designed for Ford Falcon XR, XT, XW and XY 289 / 302 Windsor V8 applications
• Pacemaker Tri-Y design
• 38mm (1½") primary pipes
• 44mm (1¾") secondary pipes
• 51mm (2") outlets
• Mandrel-bent pipework
• Manual and automatic transmission compatible
• Power steering compatible
• Suitable for selected XA-XF Falcon Windsor engine conversions
• Suitable for selected ZF-ZL Fairlane Windsor engine conversions
• Designed to improve exhaust flow, torque, throttle response and engine performance

Construction

Pacemaker PH4020 headers use mandrel-bent pipework and a vehicle-specific Tri-Y design developed for early Ford Falcon 289 and 302 Windsor V8 applications.

The standard headers are supplied in Pacemaker's protective finish. Ceramic coating is also available separately for customers wanting additional heat management and corrosion protection.

Additional Options

• Ceramic Coating: Available separately – please contact us for current coating options, pricing and lead time
• DSF3: Recommended header gasket – available separately
• Matching exhaust system components – available separately

Vehicle Fitment

• Make: Ford
• Model: Falcon
• Series: XR / XT / XW / XY
• Years: 1966-1972
• Engine: 289 / 302 Windsor V8
• Cylinder Heads: Standard Windsor heads
• Transmission: Manual / Automatic
• Power Steering: Yes

Header Specifications

• Part Number: PH4020L/R
• Design: Tri-Y
• Primary Pipe: 38mm (1½")
• Secondary Pipe: 44mm (1¾")
• Outlet: 51mm (2")
• Power Steering: Yes
• Air Conditioning: N/A
• Oxygen Sensor: N/A
• EGR: N/A
• Recommended Gasket: DSF3
• Approximate Fitting Time: 3 hours

Fitment Notes

• Designed for Ford Falcon XR-XY models fitted with 289 or 302 Windsor V8 engines using standard cylinder heads.
• Will not fit GT40 cylinder heads due to the different spark-plug angle. See PH4032 or PH4033 for the appropriate GT40-head application.
• Will fit XA, XB, XC, XD, XE and XF Falcon Windsor engine conversions.
• Will fit ZF, ZG, ZH, ZJ, ZK and ZL Fairlane Windsor engine conversions.
• Column-change automatic applications require linkage modification.
• Suits manual and automatic transmission applications.
• Power steering compatible.
• Confirm engine, cylinder-head and transmission configuration before ordering where the vehicle has been modified.
• Protect painted or ceramic-coated surfaces during trial fitting and installation.
• Check engine mounts, steering, starter motor, transmission and surrounding components for adequate clearance during installation.
• Clearance may vary where non-original engine mounts, steering components or other aftermarket parts have been fitted.
• Professional installation is recommended.

What's Included

• Pacemaker PH4020L left-hand header assembly
• Pacemaker PH4020R right-hand header assembly

Gaskets and other installation hardware should not be assumed included unless specifically confirmed with the current PH4020 package supplied.

Recommended With

• DSF3: Exhaust manifold/header gaskets
• Suitable downstream exhaust connections to match the 51mm (2") header outlets

Why Good Headers & Exhaust Systems Matter

At 4,000 rpm, a 289ci (4.7L) Windsor V8 theoretically draws approximately 9,400 litres of intake air per minute at 100% volumetric efficiency and expels around 28,200 litres of hot exhaust gas per minute at approximately 600°C.

At the same engine speed, a 302ci (5.0L) Windsor V8 theoretically draws approximately 10,000 litres of intake air per minute and expels around 30,000 litres of hot exhaust gas per minute at approximately 600°C.

Actual airflow varies with RPM, engine load, volumetric efficiency, camshaft specification and engine condition. These figures are theoretical values intended to illustrate the substantial volume of gas that must pass through the exhaust system at higher engine speeds.

A well-designed header and exhaust system helps manage this high gas flow efficiently, reducing restriction and improving exhaust scavenging, torque, throttle response and engine performance.

Warranty & Compliance

Pacemaker PH4020 headers are covered against manufacturing defects subject to Pacemaker's current warranty terms and conditions.

Vehicle modifications must comply with applicable state or territory requirements covering exhaust modifications, vehicle noise and roadworthiness.

FAQ

What vehicles do PH4020 headers suit?
Pacemaker PH4020 headers are primarily designed for Ford Falcon XR, XT, XW and XY models fitted with 289 or 302 Windsor V8 engines using standard cylinder heads.

Are PH4020 headers Tri-Y?
Yes. Pacemaker currently specifies PH4020 as a Tri-Y design.

What size are the PH4020 header pipes?
PH4020 uses 38mm (1½") primary pipes, 44mm (1¾") secondary pipes and 51mm (2") outlets.

Will PH4020 fit GT40 cylinder heads?
No. Pacemaker specifically states that PH4020 will not fit GT40 heads due to the different spark-plug angle. See PH4032 or PH4033 for suitable GT40-head applications.

Will PH4020 fit an XA-XF Falcon with a Windsor conversion?
Yes. Pacemaker specifies PH4020 for XA, XB, XC, XD, XE and XF Falcon Windsor engine conversions, subject to the stated fitment requirements.

Will PH4020 fit a Fairlane?
Pacemaker also specifies PH4020 for ZF, ZG, ZH, ZJ, ZK and ZL Fairlane Windsor engine conversions. PH4020 is also commonly catalogued for early ZA-ZD Fairlane 289/302 Windsor applications.

Will PH4020 fit a column-change automatic?
Yes, but the column automatic linkage requires modification. It is not a no-modification installation in this configuration.

Do PH4020 headers suit power steering?
Yes. Pacemaker specifies PH4020 as power-steering compatible.

Which header gaskets are recommended?
Pacemaker currently specifies DSF3 for PH4020.

Can these headers be ceramic coated?
Yes. Ceramic coating is available as an optional upgrade. Please contact us for current coating options, pricing and lead time.

Can I pick up from the store?
Yes. Pick up is available but must be pre-arranged before collection.

How much is freight?
Freight varies depending on your delivery location and where stock is available. Please contact us for freight charges before ordering. Where possible, we can arrange dispatch from the nearest available product location to help reduce freight costs and delivery times.

Do you ship to the USA?
Yes. Best Mufflers regularly ships exhaust systems and exhaust parts to customers throughout the United States.

Please note that import duties, tariffs, taxes, and customs clearance fees are not included in the product or shipping price. Once your order is processed and the applicable charges are calculated, we will send you a secure payment link to finalise the import duties and tariff charges before dispatch.

Customer Support

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