I fired off the 427 today with our exhaust almost done(need to install tips and hangers)...Here is a sound clip of our LS7 that Lingenfelter put together for us.
-- Forged top to bottom-Mahle Pistons,Manley Rods,Callies Crank...ARP Bolts
-- Currently N/A (12:1 compression)
It made 630hp and 580 torque on their engine dyno.
Link to the build -
http://www.camaro5.com/forums/showth...t=16585&page=3
More details:
http://www.camaro5.com/forums/showthread.php?t=30302
http://www.camaro5.com/forums/showthread.php?t=29988