Holden Special Vehicles Reveals Commodore W427 with +496Hp LS7 V8

The muscle-car party in Australia just keeps going on and on; HSV or Holden Special Vehicles, unwrapped the LS7 V8 powered W427 Commodore at the Melbourne Motor Show. While power output figures are still to be confirmed, the W427’s 7.0-liter or 427 c.i. V8 engine is likely to produce in excess of 496 Hp and 640 Nm or 472 lb/ft of torque.

HSV Managing Director, Scott Grant, said: “The W427 will be quite possibly the fastest road registrable Supercar ever produced in Australia and among the quickest anywhere around the world. The W427 will only be produced in limited numbers and we want to reflect that exclusivity in how we connect with our Supercar customers”.

Styling and design highlights of the W427 include an all new front fascia, a three piece carbon fibre rear spoiler, 20 inch machined faced alloy wheel, unique exhaust tips and red leather interior. The W427 is scheduled to enter production in the middle of the year and will be available for sale in dealerships in the third quarter of 2008. –Details and pics after the jump










W427 key highlights

Exterior

All new Front Fascia exclusive to W427

All new three piece rear spoiler in carbon fibre

All new 20 inch wheel

Interior

HSV performance seats in full red hot trim with W427 logo, steering wheel, gear shifter and console lid in full red hot leather

Powertrain

7.0 Litre, LS7 Engine with HSV specific calibration

o 370kW @ 6500 rpm

o 640Nm @ 5000 rpm

Over radiator style cold air induction system with high flow air filter

Dry sump lubrication system with 2 stage pump

Hand fabricated aluminium oil reservoir, with internal baffles for high G loading

Front mount, 13 row engine oil cooler

Ceramic coated, high flow four into one extractors

High flow catalytic converters and exhaust system (3 into 2 ¾ )

Active bi-modal rear mufflers for exhaust back pressure management to improve noise quality

High strength limited slip differential

New high strength six speed manual gear box (TR6060)

GMPT LS7 Clutch with new actuator and pedal assembly for high clamp loads

Suspension

New springs, 30% stiffer than GTS

Revised ride height 20mm lower than GTS

New stiffer rear suspension bushing

All new MRC calibration

Brakes

New 6 piston front braking system (50% increase in pad area)

Strap drive, 2 piece floating front rotors (380 x 35mm compared to 365 x

32mm one piece on GTS)

High friction pad material

* Specifications of W427 as at Melbourne Motor Show

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