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Holden HQ HJ HX WB 
283 307 350 400 Chev V8 
Pacemaker Headers / Extractors 
PN#PH5320
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Holden HQ HJ HX WB 283 307 327 350 Chev V8 Pacemaker Headers [PH5320]

$903.47
Tax excluded

Holden HQ HJ HX WB 
283 307 350 400 Chev V8 
Pacemaker Headers / Extractors 

PN#PH5320

Quantity
In Stock

Holden HQ HJ HX WB 
283 307 350 400 Chev V8
Pacemaker Headers / Extractors 

Part No. PH5320 
Header Design Interference design for street and race 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
Will not fit slant plug heads. 
Will not fit with raised port heads 
Use original engine mounting spacers 
or PACEMAKER spacers P/N PEMP 350. 
Spacers must be fitted on correct side. 
[RH spacer 1¾" high]  [LH spacer 1¼" high] 
Will fit Turbo 400 & Powerglide automatic. 
Gasket See "DSF009" 

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 exhaust system parts 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-PH5320


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