| All Precision Race Components (PRC) cylinder heads come fully CNC-ported and machined using state-of-the-art technology.
PRC's stage 1.0 LS6 Cylinder Heads come standard with the following options:
SEASONED GM 243 or 799 Cores
2.00"/1.55" Standard GM Valves
Your Choice Of Spring Kit
Completely Assembled & Setup To Your Specs!!
58-64cc Chambers
Flow Data: 3.910" Flow Plate - No Exhaust Pipe
Lift Intake Flow Exhaust Flow
.200" 147 cfm 114 cfm
.300" 207 cfm 148 cfm
.400" 255 cfm 187 cfm
.500" 292 cfm 202 cfm
.600" 313 cfm 220 cfm
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