Holden HQ HJ HX WB 283 307 327 350 Chev Pacemaker Headers PH5325
$1,024.68
Tax excluded
Pacemaker Headers PH5325 (extractors) | Holden HQ, HJ, HX, HZ, WB 327-350 Chev. Tuned length competition design mandrel-bent 45mm primary pipes with 76mm flanged outlets that will improve exhaust flow, torque, and throttle response. Built from high-quality steel with thick flanges and a Pacemaker Blue heat-resistant finish, these headers ensure an excellent, leak-free fit. Ideal for restorations, street performance, and weekend cruising. Click the image for larger views and more photos.
Best Mufflers provides expert advice and fast shipping Australia-wide and internationally.
Pacemaker Headers PH5325 – Holden HQ, HJ, HX, HZ, WB 327-350 Chev
Pacemaker Headers PH5325 (extractors) | Holden HQ, HJ, HX, HX, HZ, WB 327-350 Chev. Tuned length competition headers improve exhaust flow, increase mid range torque, sharpen throttle response, and deliver a stronger exhaust note. Perfect for restorations, street performance, and weekend cruisers, they ensure a tidy, leak-free fit with proven Pacemaker quality.
Key Features
- Competition Headers
- Tuned length design
- Mandrel-bent 45mm primary pipes with 76mm flanged outlets
- Thick, machined flanges for durability and reliable sealing
- Smooth merge collectors for improved scavenging and power delivery
Construction
- High-quality steel tubing with strong welds for long service life
- Pacemaker Blue heat-resistant finish rated to 800°C
Additional Options
- Ceramic Coating (PHC30): Enhanced durability and heat management
- Gasket (DSF009): Available separately for optimal sealing
Fitment Notes
- Linkages on column auto must be modified.
- Will not fit with Air-Conditioning
- Will fit slant plug heads.
- Fits with original engine mount spacers fitted on correct side. (RH spacer is 1¾"] [LH spacer is 1¼"]
- Will fit turbo 350 & turbo 400 automatic
- Will not fit Powerglide automatic.
- Will not fit with alloy raised port heads
- Protect painted surfaces and wrap headers during trial fitting
- Clearance may vary with engine mounts, steering, and aftermarket parts
What’s Included
- Pacemaker PH5325 left header assembly
- Pacemaker PH5325 right header assembly
- Header bolts [12]
- Tapered reducing cones [2]
Recommended With
- New exhaust gaskets
- Matching exhaust system available (sold separately)
Why Good Headers and Exhaust Systems Matter
- On average, a small block Chev 350 engine draws ~12,000 L of air per minute and expels ~36,000 L per minute at 5000rpm
Warranty & Compliance
- Backed by Pacemaker 2-year warranty (standard terms apply)
- Check local regulations for emissions and roadworthiness compliance
Customer Support
For phone orders, advice, or part enquiries – contact us:
Pacemaker-Headers-PH5325
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Pacemaker Headers PH5325 (extractors) | Holden HQ, HJ, HX, HZ, WB 327-350 Chev. Tuned length competition design mandrel-bent 45mm primary pipes with 76mm flanged outlets that will improve exhaust flow, torque, and throttle response. Built from high-quality steel with thick flanges and a Pacemaker Blue heat-resistant finish, these headers ensure an excellent, leak-free fit. Ideal for restorations, street performance, and weekend cruising. Click the image for larger views and more photos.
Best Mufflers provides expert advice and fast shipping Australia-wide and internationally.