THE HEAD HAS THE OEM TYPE GUIDE SEALS AND SEAL CAPS ON BOTH INTAKE AND EXHAUST GUIDES !! IF YOU HAVE ONE OF THE LISTED BIKES THEN ALL YOUR OLD HEAD'S PARTS WILL FIT RIGHT INTO THIS ONE. HONDA ATC/TRX70'S 1978 TO 1987 AND CT70 1978 TO 1981 HAD SMALLER INTAKE AND EXHAUST VALVES, SO THIS HEAD WILL NOT WORK,, UNLESS YOU BUY THE BIGGER VALVES FIRST, THEN THEY WILL WORK FINE. IF YOU NEED OTHER PARTS FOR THIS HEAD OR YOUR OLD HEAD SEE THE BOTTOM OF THIS LISTING |