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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.