@ MONSTER CAM_FOR_OLD CT70_ATC70 SL70_XL70 SEE

PLEASE READ WARNING BELOW ORDER BUTTON FIRST !!

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THIS IS THE MOST RADICAL CAM MADE FOR THE OLD TYPE HONDA HEADS

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THIS CAM HAS 6MM OF LIFT.

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Camshaft Calculations - Lobe Center / Duration

Your 200139 CAM has an Overlap of 40.00 degrees and has an

Intake Duration of 255.00 degrees. The Exhaust Duration is

265.00 degrees. The Inlet Cam has an Installed Centerline

of 102.50 degrees ATDC. The exhaust cam has an Installed

Centerline of 117.50 degrees BTDC.

WILL WORK IN HEADS FROM THE FOLLOWING

CT70'S 1969 THRU 1981

ALL ATC70'S

ALL TRX70'S

ALL XL70

ALL SL70

OUR 100002 STOCK TYPE REPLACEMENT HEAD

WHEN USING THIS HUGE CAM IN ANY HEAD FROM A 1977 MODEL OR OLDER (OR OUR 100002),,, CHECK THE FOLLOWING DETAILS!!!!!!!!!!!!!!!!

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1.__When the valves pass each other there is at least .015"

or more clearance between them at the closest point.

IF NOT DAMAGE WILL OCCUR,!!!!!!!!

TO FIX THIS JUST GRIND DOWN THE OUTTER EDGE OF THE VALVES!!!

2.(NOT TO LIKELY)__MAKE SURE WHEN THE CAM LOBE IS PUSHING THE VALVE ALL THE WAY DOWN

THAT THE VALVE SPRING DOES NOT BIND "COIL TO COIL" THIS WILL ALSO CAUSE DAMAGE!!!!

USING OUR (200149) SPRINGS CAN ELIMINATE THIS PROBLEM..