Key features of the W427

Published: 20 June 2008
HSV.
Key features of the W427

Pictured: HSV.

Price
’bull; $150,000

Volume and Distribution
’bull; HSV will build, to order, up to 427 W427s.
’bull; Each Australian and New Zealand dealer (around 64 in total) will be entitled to one HSV W427 in the first production batch, provided they have a firm retail order.
’bull; Further 2008 allocations will be prioritised to dealerships according to 2007 sales figures.

Exterior
’bull; All new Front Fascia exclusive to W427
’bull; All new 3 piece rear spoiler in carbon fibre
’bull; All new 20 inch wheel

Interior
’bull; HSV E series performance seats in full red hot trim with W427 logo
’bull; HSV steering wheel, gear shifter and console lid in full red hot leather trim
’bull; HSV specific trim panels

Powertrain
’bull; 7.0 Litre, LS7 Engine with HSV specific calibration
’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’bull; 375kW @ 6500 rpm
’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’nbsp;’bull; 640Nm @ 5000 rpm
’bull; Over radiator style cold air induction system – with high flow air filter.
’bull; Dry sump lubrication system with 2 stage pump.
’bull; Hand fabricated aluminium oil reservoir, with baffles for high G loading.
’bull; Front mount, 13 row engine oil cooler
’bull; Ceramic coated, high flow 4 into 1 extractors
’bull; High flow catalytic converters and exhaust system (3” into 2 ¾”)
’bull; Active bi-modal rear mufflers
’bull; Exhaust back pressure management
’bull; Improved noise quality
’bull; High strength limited slip differential
’bull; New high strength 6 speed manual gear box (TR6060)
’bull; GMPT LS7 Clutch with new actuator and pedal assembly for high clamp loads

Suspension
’bull; New springs, 30% stiffer than GTS
’bull; Revised ride height – 20mm lower than GTS
’bull; New stiffer rear suspension bushing
’bull; All new MRC calibration to suit new springs, ride height and bushing

Brakes
’bull; New 6 piston front braking system (50% increase in pad area)
’bull; Strap drive, 2 piece floating front rotors (380 x 35mm) compared to 365 x 32mm one piece on GTS
’bull; High friction pad material

Testing and development
’bull; GMPT requirement for race track testing
’bull; Full ‘Normal Durability’ cycle
’bull; Hundreds of hours of engine dyne testing
’bull; Full static and dynamic rig testing of critical components

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