RHS Pro Elite CNC Ported LS7 Heads for GM LS1/LS6 3.900 Bore Engines
These LS7 3.900" Bore Cylinder Heads bolt the best LS port technology onto 5.7/6.0L LS1 blocks and add up to 100 HP. Featuring all of the benefits of other RHS LS7 heads, the intake ports are raised .220" from the stock location for a straight line of sight to the cylinder. They are offered with CNCÆd or P-Ports and utilize LS7 intake manifolds.
Racing & Performance/22613, 22713