LS6 Intake Manifold

The Chevrolet Performance 12573572 is an LS6 intake manifold designed for enhanced engine performance. This manifold features a 4.40-inch bore spacing, a runner volume of 0.541 liters, and a plenum volume of 5.19 liters. The runner length is precisely 262mm, contributing to optimized airflow. This component is recognized by GM part numbers such as 12573572 and is associated with the LS6 engine design, often found in performance applications like the Corvette Z06. It is distinct from the standard LS1 intake manifold (part number 12556333 or 12560688), with the LS6 manifold typically offering an increase in horsepower and torque. It's important to note that while this intake manifold is part of the LS6 design, there can be variations. For instance, some sources indicate that the 12573572 part number may differ in throttle hookup screw hole configuration compared to other LS6 variants, as it was originally found on Z06 models. Compatibility should always be verified for specific engine builds, particularly when retrofitting onto LS1 engines.