At Southern Performance Systems, we offer the LS7 in a Stock Engine Turnkey Package or our own SPSeries Package. Both the Turnkey and SPSeries LS7 our offer with either a Wet Sump or Dry Sump Oil Delivery System.

The engines internals for each package are identical with 427ci, a 4.125in x 4in Bore and Stroke, Camshaft lift (duration) of .591 (211°) intake / .591 (230°) exhaust, and 11.0:1 Compression Ratio. The valve sizes are 2.2in intake and 1.61in exhaust.

The Turnkey LS7 Package has been designed for customers with who are looking for a 505HP Engine Package without any custom add-ons.

The SPSeries LS7 was designed for the Hot Rod Enthusiast that is looking for one of GM most powerful factory engines that will receive a lot of attention at any car show.