88cc V2 Race Head Big Bore Kit - CRF50 XR50 CRF70 XR70 Z50 - TBW9105

88cc V2 Race Head Big Bore Kit - CRF50 XR50 CRF70 XR70 Z50 - TBW9105NEW! Roller Rocker V2 Race Head Performance Kit: TB Parts 88cc (52mm) V2 Race Head Big Bore Kit. This kit converts a stock 50 and 70 to 88cc. Features: 52mm high compression piston with rings, pin, & clips Head gasket kit and clutch cover gasket. High performance race camshaft (for the V2 Race Head only) Has Roller Rocker Arms exactly like the V2 head for the KLX110 28. 5mm intake Valve 23. 5mm Exhaust Valve 5mm Valve Stem 26mm Intake Port (Matches

Longer-lasting

66mm Skirt OD (15mm tall skirt)

The exhaust valve is now stainless as well (21-4N material)

Refunds will not be given on refused/undeliverable international shipment for any reason

5″ extended aluminum swingarm kit for the Z50 K3-78 and all Z50R models

<u>This kit is only for the YX/GPX/Zongchen 150cc to 160cc engines with a a KLX110 type topend

This kit includes our complete race head and camshaft ready to bolt on with the matching piston and gaskets

Cylinder height = 63mm

This magnetic drain bolt will catch metal debris in your cases

(**Case Boring Required)

if need be

With these oversized valves you get the best of everything as the stainless material will long out live the stock valves