Holden HQ HJ HX HZ WB 283 307 327 350 Chev V8 Pacemaker Headers PH5310
$892.45
Tax excluded
Pacemaker Headers PH5310 (extractors) | Holden HQ, HJ, HX, HZ, WB 327-350 Chev. Interference design mandrel-bent 42mm primary pipes, 51mm secondary pipes with 57mm 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 PH5310 – Holden HQ, HJ, HX, HZ, WB 307, 327, 350 Chev
Pacemaker Headers PH5310 (extractors) | Holden 350 Chev HQ, HJ, HX, HZ. Interference design 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
- Interference design
- Mandrel-bent 42mm primary pipes 51mm secondary pipes with 57mm 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 (PHC10): Enhanced durability and heat management
- Gaskets (DSF009): Available separately for optimal sealing
Fitment Notes
- Linkages on column auto must be modified.
- Will fit with Air-Conditioning
- Will not fit slant plug heads. [see product code PH5315]
- 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 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 PH5310 left header assembly
- Pacemaker PH5310 right header assembly
- Header bolts [12]
Recommended With
- New exhaust gaskets and sealant
- Matching intermediate pipes, joiners, or adaptors (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-PH5310
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Pacemaker Headers PH5310 (extractors) | Holden HQ, HJ, HX, HZ, WB 327-350 Chev. Interference design mandrel-bent 42mm primary pipes, 51mm secondary pipes with 57mm 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.