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Holden HSV Coupe Engine Number
Use this guide to locate the engine number on your Holden HSV Coupe and line up the right engine-related parts enquiry.
The HSV Coupe is Holden Special Vehicles' two-door based on the Holden Monaro, built roughly 2001-2006 across the V2 and VZ Coupe series and powered by an LS-family V8, most prominently as the HSV Coupe GTS.
Where to find your Holden engine number
The stamped engine number is on a machined pad on the block. Its location depends on the engine family:
- Inline six-cylinder: on a pad on the right-hand side of the block, above the engine-mount boss.
- V8 (253 / 308, 4.2 / 5.0 litre): on a pad on the left-hand side of the block, above the engine mounting.
- V6 (Buick-derived, Ecotec, Alloytec): on the front left-hand face of the block, below the ignition coil.
- Later V6 and LS V8 models: the build / engine plate sits on the radiator support panel (VT-VZ era) or the passenger-side strut tower (VE / VF era).
You may need to wipe the pad clean to read the stamped number, and on air-conditioned cars the compressor can sit in front of it. Older Holden engines use a capacity-plus-tune prefix (for example 186S or a Q-series V8 code), while modern engines (Ecotec, Alloytec and the LS V8 family) use a GM engine code plus a separate stamped serial.
For the most accurate part match, send us both the engine code or prefix and the full stamped number, along with whether the car is automatic or manual.
On this model
The HSV Coupe used the LS1 5.7-litre V8 in the earlier V2 series and moved to the LS2 6.0-litre V8 with the later VZ Coupe. When ordering engine parts, confirm the exact series (V2 versus VZ) and the specific V8 fitted, as LS1 and LS2 components are not universally interchangeable. Where possible, quote the engine code and the stamped engine number to match the correct specification, since HSV engines were built to HSV tune and specification rather than standard Holden output. If you are unsure which V8 the car carries, verify against the build plates and the physical engine markings before committing to parts.
Frequently asked questions
Where is the engine number on a Holden HSV Coupe?
It is stamped on a machined pad on the engine block. Inline sixes are on the right side above the engine mount, the 253/308 V8s on the left side above the mount, and the V6 engines on the front left face below the ignition coil. You may need to wipe the pad clean to read it.
What is the difference between an engine prefix and an engine code?
Older Holden engines use a capacity-plus-tune prefix stamped on the block, while modern engines (Ecotec, Alloytec and the LS V8 family) use a GM engine code plus a separate stamped serial.
Do you match engine numbers to parts?
Yes. Send us the engine code or prefix and the full stamped number, plus whether the car is automatic or manual, and we will match the right engine-related part.
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