GenTech Gen III V8 Stand-A-Lone Engines are available in 4.8L ( 294 cu. In. ), 5.3L ( 325 cu. In. ), and 6.0L ( 364 cu. In. ). These Engines have gained popularity due to the emission controls required when performing a engine conversion in some vehicles. GEN III engines are the latest in GM engine technology and include "self destruct" prevention built in the PCM. On-Board Diagnostics II (OBD II) is another feature. Our Engine Harness is OBD II compliant. This affords the ability to retrieve "Diagnostic Trouble Codes" (DTC) via the DTC connector and integral SES (Service Engine Soon) light. This feature takes the "guess work" out of trouble shooting. Engine Tuning and Scanning are also done using the DTC connector.. Aftermarket Tuners and Scanners plug right in. The PCM (Power Control Module) is programmed with a "Learn Mode Program" and is part of the OBD II diagnostics. This allows the PCM to "LEARN " your driving habits and calculate accordingly…. STANDARD ENGINE PACKAGE INCLUDES: Power Steering Pump and Pulley Exhaust Manifolds (Rear Dump) Wiring Harness and fuse block ECM (Engine Control Module) Oil and Filter Electronic Throttle (Drive-By-Wire) Labels for Hook-ups Ground Strap and Cable Starter Alternator (130 Amp) Serpentine Drive Belt Radiator Block Vent Kit Water Pump Flex plate Deep Sump Oil Pan (6.5 Quarts) O2 sensors and engine sensors Both have the same Engine (4.8L) and Transmission (4L60E)and get more than 20 MPG at 65 MPH. Typical Installation Pictures ENGINE     HP     TORQUE     WEIGHT     PRICING 4.8L V8     285         300             520         $2,150.00 5.3L V8     295         350             520         $2,495.00 6.0L V8     300         400             550         CALL...... 6.0L V8     345         430             550         CALL......