CVO Street Performer Head (Available in Air Cooled or, Water Cooled)
This head features a reshaped and fully CNC ported intake and exhaust ports with 1.800 inlet opening. This head comes with a 2.150 intake and 1.630 exhaust valve custom made to correct rocker arm geometry and utilizing the stock seats. The chambers are hand blended to insure consistency. This is the most cost effective first step for your CVO upgrade.
Piston to valve clearance must be checked when not using T-Man Performance custom pistons.
Due to core shift in some Harley heads there may be areas where the CNC machine does not touch.
Head packages require your heads to be sent to T-Man Performance for work to be completed.
* When not using T-Man Performance pistons the builder is responsible for checking all valve to piston clearances.
|Valve Sizes||2.150″||1.630″||-.003 / 101cc|
|Valve Spring Installed Height||1.860″||1.860″||-.020 / 97cc|
|Valve Spring Seat Pressure||178lbs||178lbs|
|Valve Spring Pressure @.600″ Lift||360lbs||360lbs||-.040 / 93cc|
|Valve Spring Travel||.770″||.770″|
|Valve Seal/Top Retainer Clearance||.835″||.835″||-.060 / 90cc|
|Compression Release Options||Auto (OEM)||Manual|