CNC Ported LS 243 Cathedral Port Cylinder Heads

Core charge of $300 is charged up front and will be reimbursed when we receive the core 243 heads back. 

CNC ported, Dual 660 Springs, Titanium Retainers, and Performance Valve Job. 

INTAKE
Lift.       Cfm
.100     65
.200     145
.300     223
.400.     261
.500.     291
.600.     302
.650      306


Exhaust
Lift.      Cfm
.100.    55
.200.   105
.300.   145
.400.   176
.500    205
.600    220
.650    227