LS-Series Cylinder Head – 

Part Number: 12578450
Description: Bare LS7
Material Size:  Aluminum
Port Size: 270
Valve Angle:  12 deg
Chamber Vlv: 70
Int Vlv:  2.200
Exh Type:  1.610
Int Port Type:  LS7
Ex Port Type:  Std LS
Rocker:  Bolt-down
Notes Number: Bare LS7