Viper Engine in a SPF MK III

Heidelberg · #1 (**permalink**) 10-03-2009, 06:27 AM

Hi guys,

I know this may sound sacreligious to any of you US based guys, but I have a GM LS7 427ci in my SPF...I was really hesitant to go the non Ford powerplant route at first and personally agonised over the decision for ages...but now having lived with my car for about a year now, I can't imagine a better marriage with a Cobra...

I live in Australia where we have unbelievable strict vehicle licencing laws which essentially means that you have to have a motor that meets the emissions laws in place at the time the car was 1st registered...So with a new SPF on order in Dec 2007 with plans to licence it in 2008, I had to choose a motor that met 2008 Australian emissions laws! So, if I wanted to choose a Ford motor, it meant buying a 5.4 litre quad cam modular crate motor...

After months of deliberation and research, I decided on the latest GM LS7 motor which gave me 505 hp straight out of the crate....

If you're interested, there's a couple of YouTube postings of my car...see
http://www.youtube.com/watch?v=Rhg0xMzaO1c

Regards......Paul

SP01715 · #2 (**permalink**) 10-03-2009, 09:38 AM

Not my choice for a motor in a Cobra, but Ilmor makes a marine version rated at 720hp. The motors are well liked in performance boating community, and have been reliable. This is with no supercharger or turbo either. I think the motor has a lot of potential, and IMO sounds pretty nasty with the right exhaust.

sparks · #3 (**permalink**) 10-03-2009, 10:13 AM

The install on your LS7 looks and sounds great. What is the wieght of that motor ???? I am really gonna consider that when I get my next one....