This is the YX Big Valve head
Can be used on GPX 124cc Engines as in Pitster pro ,thumpstar ect
27mm intake valve and 23mm exh valve complete and assembled
cam included with .265'' lift
Intake port size is 24mm
Exhaust port size is 33mm
using this head and the tb146cc bore kit on your Pitster will produce a really good power increase
Includes
- Cam sprocket 32 tooth
- cam
- all covers covers
- Valves (installed)
NOT included:- Oil line jumper (not shown)
Can be used as replacement head for Lifan 140cc , Lifan 150cc & Lifan 120cc 52.5 bore x 55.5 stroke engines
Please tell us what engine you have when ordering
Due to stock levels we may sub for equal YX product
When running TB300 Race cam a simple far end bearing swap will be needed
(no special tools required)
NOTE:
Alternate Part
numbers
TBW1118
TRC-049
