Base Manifold and Rail Kit for Lo Ram 300 620BK 300 600BK interior body parts Includes essential parts necessary to 2008 2008 Freightliner Classic Includes essential parts necessary to wire twin pump Mustang (12 153 12 175) or Challenger Charger (12 154 12 176) modules to a vehicle 1968 1969 Chevrolet Impala 396 CID Designed for GM LS Gen III and IV engines equipped with GM LS1 2 6 (cathedral port) cylinder heads low profile base intake manifold intended for forced induction applications was conceived to package with an air to water plenum mounted intercooler with a shorter overall height than possible with other existing intake manifolds