[radz28]

Originally Posted by shnomac77

LSA it is people.....

Then again who knows what may be out in 2 years... muahahahaha

Originally Posted by Robert91RS

Cost of the LS7 and LSA are within pennies of each other and the LSA has better emission characteristics. Plus the LSA is capable of more HP per dollar of mods than the LS7.

To clear up the differences in the LSA vs LS9: The LSA has a heavy duty block(just not as heavy duty as the LS9), a forged crank thats a little more ecenomical than it's brother, PM rods rather than forged, hypereutectic piston instead of forged, LS9 oil piston squirters, a 1900cc supercharger in place of the LS9 2300, a wet sump oil pan vs the LS9 dry sump and the LS9 style HD cylinder heads. This means the LSA is one hell of a motor. That being said I too would rather see an LS9 running at a lower PSI than the ZR1 so the owner can turn up the boost without ANY fear of damaging the rotating assembly. But I suspect the 7k price difference is the root cause for GM's decision.