Mike Holmen
the Diesel dude
- Joined
- Sep 19, 2008
- Messages
- 376
Does anyone have any flow info on any head? This is what I have off PDR site
Ported cylinder head flow rate, comparison chart:
12 Valve
Intake Exhaust
Stock 145 CFM 153 CFM
mild port 154 CFM 168 CFM
next level porting 163 CFM 183 CFM
24 Valve
Intake Exhaust
stock 161 CFM 173 CFM
mild port 181 CFM 196 CFM
next level porting 181 CFM 205 CFM
Note: all measurements taken at .400" of lift.
Ported cylinder head flow rate, comparison chart:
12 Valve
Intake Exhaust
Stock 145 CFM 153 CFM
mild port 154 CFM 168 CFM
next level porting 163 CFM 183 CFM
24 Valve
Intake Exhaust
stock 161 CFM 173 CFM
mild port 181 CFM 196 CFM
next level porting 181 CFM 205 CFM
Note: all measurements taken at .400" of lift.