LS3 Cylinder Head, Cam, and Intake Swap - Crate LS3 Throw Down Photo Gallery
GMPP currently offers three different variants of the LS3 in crate trim. In addition to the base LS3 used in our test, it’s also available with a larger 219/228-at-0.050 cam that boosts output to 480 hp and 475 lb-ft. Dubbed the LS 376/480 (PN 191712240), it costs the same as a base LS3. For an extra $600, GMPP matches up a larger 226/236-at-0.050 cam with a single-plane intake manifold to create the LS 376/515 (PN: 19171225), which increases performance to 515 hp.