Performance Improved Heads


The heads that came with the motor were not PI. Below is one of the replacement PI heads that were purchased from Five Star Ford.


Valve Lift @ Zero Lash
Intake Lift 13.01 mm (.512 inch)
Exhaust Lift 13.75 mm (.541 inch)

Combustion Chamber Volume 43.95 ±1.5cc

Valve Size
Intake 44.5 mm
Exhaust 36 mm
Here is Jeff checking out the heads.


These heads were not ported. Only some flash was removed.


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