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Holden HQ HJ HX HZ WB 
5.0 & 5.7 with EFI Heads 
Pacemaker Headers / Extractors 
PN# PH5275
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Holden HQ HJ HX HZ WB 5.0 EFI V8 Pacemaker Headers [PH5275] Competition

$994.49
Tax excluded

Holden HQ HJ HX HZ WB 
5.0 & 5.7 with EFI Heads 
Pacemaker Headers / Extractors 
PN# PH5275 

Quantity
In Stock

Holden HQ HJ HX HZ WB 
5.0 & 5.7 with EFI Heads
Pacemaker Headers / Extractors 

Part No. PH5275 
Header Design Interference design for street performance applications 
Pipe Sizes
Primary Pipes Secondary Pipes Outlet Size
1.75"  2.00" 2.25"
Notes Check availability before ordering  
Ceramic Coating Available see "PHC10"
Gaskets "DSF063"
Suitable for 5.7ltr stroked or supercharged 
Will fit the following gearboxes: 
- Australian four speed with cable clutch. 
- Commodore VN-VS five speed. 
- Toyota Supra 5 speed 
- Holden Trimatic. 
- Holden Turbo 350 & 400 & 700 
 fitted with Hatfield cross member 

Installation Tips 

A great way to fit Pacemaker Headers without scratching the headers or the engine bay during installation is to wrap headers in cling wrap. The more layers added the better chance of preventing any damage. Once wrapped nice and tight, trim around header mounting flange with razor blade or scissors then place headers into engine bay, install a few bolts, then cut the remaining cling wrap away with scissors or razor before tightening.

  • Australian Made
  • Mandrel Bent
  • Australia Wide Delivery
  • Need Info Contact Us
Pacemaker Headers

If you need help finding the correct Pacemaker Headers please Contact Us 

WHAT IS THE DIFFERENCE BETWEEN HEADERS AND EXTRACTORS? In Australia, headers were known as extractors through the 60's and 70's by the companies developing them. In America at the same time they were called headers (spelt hedders). This was in part due to the fact that they (headers) are an extension of the cylinder head. In the 80's new Australian companies began to market extractors as headers. The main reason being that these companies intended to change the image of the humble extractor to more of a common vehicle replacement component. Some 'old school' enthusiasts still call them extractors today.

Pacemaker-Headers-PH5275


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