Chevy GM LS7 250cc 60cc 6 Bolt Hydraulic Roller Assembled Cylinder Heads 6 rib serpentine pulley designed

6 rib serpentine pulley designed to increase grip

fuel injectors

measuring 102mm

This body has a much larger diameter then your existing throttle body

stable air flow at any rpm

Chevy GM LS7 250cc 60cc 6 Bolt Hydraulic Roller Assembled Cylinder Heads 6 rib serpentine pulley designedSpeedmaster 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