I'd never admit it publicly, but I reckon the LS7 makes for a ripping cobra engine. 
Shhh don't tell the others 
 
  
 
This is a car in West Aus - it belongs to a guy named "Heidelberg" here on CC. 
I rarely see him post anymore, so I'll put it up on his behalf. 
It's one of my all time fav cobra builds. 
I couldn't care less that it has a Chevy engine. 
At least the displacements right 
 A Creation From Down Under – A Chevy Powered 427 LS7 Cobra! - LSXTV
A Creation From Down Under – A Chevy Powered 427 LS7 Cobra! - LSXTV