Well I got a surprise early birthday present from the misses here is a pic and the specs of the motor
"NEW OLD STOCK FACTORY TESTED"
5HP BRIGGS ENGINE COMPLETE flat head
HEAVY DUTY MODEL MODIFIED FOR MILITARY USE
BRIGGS MODEL132436
DOUBLE BEARING BLOCK ,IC STEEL BORE ,INDUSTRIAL VALVE TRAIN,UPDRAFT CARB,WITH STATOR ,POINTLES IGNITION, MANUAL PULL START,CRANK IS 3/4" X 2 1/4" , 3/16" KEYED AND TAPPED MODIFIED FOR MILITARY USE, WILL ACCEPT ELECTRIC START