|
The LS6 block was cast at a different plant in Mexico, while the LS1 was cast in Canada. The LS6 block used high speed-casting, or something like that. This actualy makes the block stronger to handle the higher output. The LS6 intake was also used on ALL LS1's after 01, but not all LS1's got LS6 blocks. By the end of 02, both the Canadian plant and Mexican plant use the high speed casting, so ALL LS1's after 03 are LS6 blocks with heads.
All LS1's have different cams. Vettes, Fbodies and GTO's, as well as Holdens all have different spec cams.
As for the dyno numbers, thats quite awesome. About spot on with a LS6, though I have seen Z06's put down a little bit more hp, usualy over 400hp, and that was with the IRS set up. Id say take a look at the part numbers on the heads and see if this engine might have squeek past anyone at Ste.Therese.
__________________
2/20/2013: They Day the ****s Stopped
|