Products & Services
Cylinder Heads
Twin Cam Heads  06/ & Later
1.900" Intake 1.710" opening
Twin Cam Heads 05& Earlier
1.900" Intake   Std Opening
2.000" Intake   1.800" Opening
Evolution Big Twin Heads
1.900" Intake Std Opening
2.000" Intake  1.800" Opening
Evolution Sportster/ Buell Heads
Inquire regarding options
S&S Heads
All Styles
From Shovelhead to Prostock
Inquire regarding options
STD Development Heads
All Styles
From Pan Head  to Twin Cam
Inquire regarding options
V-Rod Heads
Street Head   41mm 35.4mm
Race Head    Inquire
HighOutput Engineering, LLC