However, GM engineers reduced the LS3's compression ratio to 10.7:1 compared to the LS2's 10.9:1 ratio. Horsepower ratings are another noticeable difference between the LS2 and LS3.

This article presents LS engine power packages that combine high performance parts in power recipes for LS1 and LS2 engines making up to 710 HP - Super Chevy Magazine ...

Sold on an exchange basis, LS2 intake porting retails for $300 shipped (carried under PN Vmax LS2 Port). For enthusiasts who are looking to purchase a new manifold, GM carries the LS2 manifold ...