WE BEAD BLAST AND PAINT THESE CYLINDERS WITH HIGH TEMP BLACK.
SOLD OUTRIGHT WITH NO CORE NEEDED.
THESE ARE COMPLETELY READY TO INSTALL, FRESH BORE AND HONE, JUST BE SURE TO USE THE INCLUDED SPECIAL BIG BORE COPPER HEAD GASKET.
PLEASE BREAK IN LIKE A NEW ENGINE
I LIKE TO RUN FOR 5 MIN AT 1/4 THROTTLE OR LESS THEN LET COOL AND REPEAT. THEN EASY FOR A TANK OF GAS.
MAIN PICTURE SHOWS A 53.50 PISTON,, BUT THIS LISTING IS FOR THE 54.00 PISTON KIT AND CYLINDER
FITMENT:::
CT90K0 K2 K3 K4
ATC90'S WITH FRAME #'S LOWER THAN 1113934
ALL S90
ALL SL90
ALL CL90'S
ALL CM91
=========================================
FRAME NUMBER CHART FOR CT90'S SEE BELOW
CT90K0 = CT90-100001 TO CT90-200000 (note just 6 digits)
CT90K1 = CT90-200001 TO CT90-300000 (note just 6 digits)
CT90K2 = CT90-300001 TO CT90-400000 (note just 6 digits)
CT90K3 = CT90-400001 TO CT90-499999
CT90K4 = CT90-1400001 TO CT90-1500002
