Chevy GM LS7 250cc 60cc 6 Bolt Hydraulic Roller Assembled Cylinder Heads Available in different bore diameters

Available in different bore diameters to suit your specific engine's needs

6 rib serpentine pulley designed to increase grip

This kit features a simple V-belt to serpentine pulley conversion while retaining your existing brackets

fuel injectors

Chevy GM LS7 250cc 60cc 6 Bolt Hydraulic Roller Assembled Cylinder Heads Available in different bore diametersSpeedmaster LS series cylinder heads are rapidly expanding. The LS (Gen3 4) platform has many design benefits over the earlier SBC engine designs, most notably the cylinder heads. Although the GM heads are good pieces, We have developed a superior line of heads for modern performance enthusiasts. Like all Speedmaster cylinder heads, the LS series heads are produced using our "Gravity Casting" process. This process ensures a more uniform and robust