Holden GTSR W1 supercharged V8 engine price $170K (Video inside)

Petrol heads rejoice - before it shuts up shop in Australia for good, Holden will build the most powerful Commodore ever.

photo motormag.com.au

Holden Special Vehicles has revealed its GTSR W1 model will have a supercharged V8 engine and a price tag of about $170,000.

The performance vehicle unit says the car's maximum power output of 474kW makes it the most powerful performance production car built in the country.

About 300 will be assembled in April, before the last of Holden's Australian production lines close in October, but many of the fleet have been pre-sold to Holden lovers.

photo motormag.com.au

The car's build will begin at Holden's Elizabeth plant in Adelaide before the engines are installed at the company's Clayton plant in Victoria.

A GTSR sedan and a ute, the GTSR Maloo, will also be produced, priced at $109,490 and $96,990.

photo motormag.com.au

The LSA has been diced and in its place goes an LS9, still 6.2 litres but with a bigger, 2.3-litre blower and 474kW and 815Nm. The power hike is partly to do with the internal changes and partly by being able to rev it to 6600rpm. And that’s been achieved by switching to titanium con-rods, forged pistons, titanium inlet valves, hollow exhaust valves, under-piston oil jets and a specific camshaft. The V8 is also dry-sumped with an oil capacity of almost ten litres and a water-to-air oil-cooler.

There’s a 47 per cent bigger (over the LSA) intercooler which uses a front-mounted heat-exchanger and gets its own, dedicated cooling system rather than tapping into the engine’s coolant path.The W1 also gets an OTR air intake and a set of ceramic-coated headers and two-and-a-half inch stainless exhaust system with a recalibrated bi-modal valve.

HSV Managing Director Tim Jackson says the three cars are the last in the Gen-F Range and the company wanted to send the range off "with a bang".

"We're confident we've delivered our best product ever, and the greatest performance cars ever produced in this country", he said in a statement.