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View partPH5340_L_R
PH 5340 Chevrolet 396-454 Big Block V8 Conversion To Suit Holden HQ-WB 2" Tri-Y
PH 5340 Chevrolet 396-454 Big Block V8 Conversion To Suit Holden HQ-WB 2" Tri-Y (SKU: PH5340_L_R), $1515.28 from Pacemaker.
BrandPacemaker
Category: Extractors and headers
RRP $1515.28 AUD
Confirmed on orderAfterpay, Zip Pay & Zip Money available
Part specs
- SKU
- PH5340_L_R
- Supplier
- Pacemaker
- Category
- Extractors and headers
- Vehicle fitment
- Holden HJ HQ HX
- Stock status
- Confirmed on order
The Pacemaker PH5340 is a 2in tri-Y header set listed for a Chevrolet 396/454 big-block V8 conversion to suit the Holden HQ-WB. It's a left-and-right pair built around an engine-swap fitment rather than a factory application.
What does this header set cover?
PH5340 is the L/R tri-Y header pair for fitting a Chevrolet 396/454 big-block V8 into the Holden HQ-WB body. The 2in figure is the primary tube size off each cylinder. Because it's a conversion part, its job is to clear the big-block in a chassis that wasn't built for it — it's the manifold section for that swap, not a full exhaust system. Both the donor engine family (Chevrolet big-block) and the host body (Holden HQ-WB) are named in the listing.
What is a tri-Y header and what does it change?
A tri-Y header pairs cylinders into Y-junctions before a final collector, rather than running every primary into one common collector. It's a header design choice, here in a 2in primary size. As a conversion header its first task is fitment — getting the big-block's exhaust out of a Holden engine bay it didn't come with. We publish no power or sound figures, so we describe it plainly as a 2in tri-Y conversion header set, a swap-focused part rather than a measured upgrade.
Will it suit my Holden HQ-WB conversion?
It's listed to suit a Chevrolet 396/454 big-block V8 fitted into the Holden HQ-WB. Conversion fitments depend heavily on the rest of the build — mounts, sump, steering — so this is firmly a confirm-with-the-workshop part before ordering. The supplier hasn't published a year range. Recommended retail is $1,515.28 for the pair.
What does fitting involve at our Illawarra workshop?
Oak Flats Muffler Men supplies and fits conversion header sets like this in-house across the Illawarra. Big-block swaps are clearance-critical, so we check the tri-Y primaries against your engine mounts, steering and chassis before committing the rest of the system. Bring your HQ-WB conversion details and we'll confirm the fitment.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
- What is the PH5340 for?
- It's a tri-Y header set for a Chevrolet 396/454 big-block V8 conversion into the Holden HQ-WB. It's the manifold section for that engine swap, supplied as a left-and-right pair.
- What does the 2in figure mean?
- It's the primary tube diameter — the size of each runner off the cylinders before the tri-Y junctions.
- Will it fit my conversion?
- It's listed to suit a big-block in the HQ-WB, but conversion clearances depend on your full build. Confirm your engine, mounts and chassis details with the workshop before ordering.
Fitment support across the Illawarra
Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.Show nearby fitment areasCollapse section
Oak Flats Muffler Men can check this part against supplier specs, part number, image, RRP and vehicle details for customers around Oak Flats, Shellharbour, Wollongong, Dapto, Albion Park, Kiama and the northern suburbs.
Check fitment near Oak FlatsCheck fitment near Albion Park RailCheck fitment near ShellharbourCheck fitment near WollongongCheck fitment near DaptoCheck fitment near WarillaCheck fitment near CorrimalCheck fitment near WoononaCheck fitment near BulliCheck fitment near ThirroulCheck fitment near KiamaCheck fitment near Albion ParkCheck fitment near Lake IllawarraCheck fitment near Mount WarrigalCheck fitment near Barrack HeightsCheck fitment near Barrack PointCheck fitment near BlackbuttCheck fitment near Flinders
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