Cylinder Head PINASCO VRH GP
Developer Version for POLINI
/D.R./PINASCO 177 for Vespa
125 VNA-TS/150 VBA-Sprint/PX80
Ø 63 mm,
just inner calotte, w/o
FOR RACE USE ONLY
At last! New heads for the 177cc from PINASCO. Thanks to their universal fit, the new parts from VRH fit all conventional 177cc cylinders. Both VRH head variations are both versatile and innovative. The VRH PRO has a central spark plug; combustion chamber and squish band have been newly calculated and optimised. The VRH GP is even more versatile and comes with two removable semi spherical caps. One of these (GP1) is made for street use, the other (GP2), was specially developed for racing use and promises more oomph through smaller squish band and higher compression.
Conclusion: Whether country roads or race asphalt: the right head for all situations!
Aluminium / ø 63 mm / 57 mm stroke / central spark plug/ combustion chamber removable in part
Aluminium cylinder head, massive construction, Ø 63.0mm, short thread, compression 11.5:1, squish band clearance 1.2mm, high quality casting
SIP-TIP: Pros can order a spherical cap molding blank for the VHR GP and modify and optimize to their specific motor's needs.
OEM Numbers (for the purpose of comparison)
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