FLOW NUMBERS
782 Casting
Percentages given below are either + or - a percent gain or loss over a stock head.
Standard & +1mm Valves
Average across entire lift range:
Intake   +19.2%
Exhaust +29.2%

Average at maximum lift:
Intake +17.0%  Exhaust +33.3%
Big Valves
Average across entire lift range:
Intake   +29.0%
Exhaust +49.8%

Average at maximum lift:
Intake +34.3%  Exhaust +50.7%


Lift
Intake

Lift
Exhaust
Intake

Exhaust
.100"
.200"
.300"
.400"
.450"
.500"
+27.0%
+19.1%
+25.0%
+35.5%
+35.4%
+33.3%
+11.1%
+27.0%
+23.7%
+18.0%
+18.2%
+17.0%
.100"
.200"
.300"
.400"
.450"
.500"
.600"
+20.2%
+31.3%
+31.8%
+27.6%
+27.4%
+30.0%
+34.3%
+44.1%
+39.7%
+53.2%
+56.9%
+53.9%
+49.8%
+50.7%
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