MTI Racing #253 LS3 Aluminum Engine 808hp & 738 ft/lb of Torque C7 A particular head with slightly

A particular head with slightly lower numbers may end up making MORE POWER due to the quality and direction of airflow

while their slip-together union allows for an easy installation without welding

Just like every chassis dyno will report your car at different power levels

Replace Valve Guides with Ferrea Bronze Guides ($500) plus additional installation

This piece not only is stronger than the original oem roof panel but weights a fraction of the oem weight

MTI Racing #253 LS3 Aluminum Engine 808hp & 738 ft/lb of Torque C7 A particular head with slightlyMTI Racing #253 LS3 Aluminum Engine 808hp & 738 ft lb of torque Complete Engine ONLY Engine Build Sheet and Engine Dyno Sheet Attached Complete Engine includes: Water Pump Pulley, Power Steering Pulley, Throttle Body, Alternator Bracket, Tensioner, Coil Pack, Coil Pack Wiring, Spark Plugs and Spark Plug Wiring, Intake Manifold, Fuel Rails, Fuel Injectors.