HSV GTS-R 427 7.0-litre LS7 V8 Photo:

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Steane Klose | Jun, 30 2007 | 23 Comments

Well, for all of those people out there who thought a 6.0-litre LS2 HSV was a bit underdone (you know who you are) it appears that the horsepower Gods have been listening to your prayers.

Wheels magazine claim to have the inside news on HSV’s plan to introduce an LS7 equipped sedan that they believe will be named the GTS-R 427. HSV are expected to debut the GTS-R 427 at the Sydney motor show in October to coincide with 20th anniversary of the performance car maker.

Wheels go on to say that dealers around the country are already taking deposits for the monster HSV. The 7.0-litre LS7 thumps out 385kw/640Nm which will quite simply make it the fastest Australian production sedan ever. Expect 0-100km/h in 4.7 seconds and the 0-400m dash to take a paltry 12.6 seconds. Top speed could nudge 300km/h but would be electronically limited to 250km/h.

Already doing duty in the latest ZO6 Corvette the LS7 is a hand-built, dry-sumped smallblock V8 that with the help of titanium conrods will rev to 7100rpm. The LS7 weighs the same as the current LS2 6.0-litre so there will be no compromise in the handling department. The Corvette ZO6 is only available with a six-speed manual and an automatic option in the GTS-R 427 is unlikely.


While HSV are expected to debut the GTS-R 427 in October it is likely to be a little longer before it reaches production. HSV will need to work on electronically controlling the torque of the LS7 through careful tuning of the ECU to ensure the survival of gearboxes, differentials and driveshafts. In other words when you punch the firewall with your right foot you will not always get the full quota of torque on offer.

Rumours around the net suggest that the GTS-R 427 may also be the next Pontiac G8 GXP. While we cannot confirm that it wouldn’t surprise us. What it will be is a super sedan that will challenge the likes of AMG and M-Series BMW’s for outright pace if not sophistication. And the price for all of this uber-competitiveness? We would suggest upwards of $100k.

One thing you can be sure of, no matter where you take your new GTS-R 427 it will be like turning up at hole digging party in a D9 Caterpillar when everyone else brought a shovel…

You can read more about the LS7 and ZO6 Corvette by clicking on the link below:

Corvette ZO6

Source : Wheels Magazine via GM InsideNews

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