Click to enlarge

FOR_USE_WITH 1981 and OLDER CRANKS FROM 50'S AND 70'S Z CT C70 XL SL.. 

OR ANY YR. CRANK FROM AN ATC70 TRX70


 AND_LISTED_HEADS SEE_DISCRIPTION

THIS WILL WORK WITH THE FOLLOWING HEADS THEN

C70 PASSPORT 1980 AND 1981

Z50 HEADS ALL THRU 1981

STOCK XR70 CRF70 AND TRX90 HEADS

E22 HEADS WITH 20 AND 23MM VALVES

MOST ANY CHINA HEAD WITH 20MM AND 23MM VALVES

88cc_CYLINDER_KIT C70_1970_to_1981 Z50'S_69_TO_81 (88CYL/1_33/1004D) exed sorry discontinued 88CYL/1-33/1004D