lycoming ?

[Superduty88]

iv been around airboats for a while but new to the aircraft motors i was just wonder what jugs are these i was told it was a lycoming 125 0290 with different jugs just wanna now kinda exactly what i have thanks for the help

 

[JT540]

that appears to be a 360 or at least a 320 with 480 cylinders. its not a 290 with 435. look at the cylinders nut they are internal allen nut not hex nuts the like 290 would be. count the number of fins on the barrel also what size crank bolts and how thick is the flange on the crank. those things will tell you most of what you want to know.

 

[swampsquatch09]

seeing that its a narrow deck those might be 480 jugs on a 320, not sure on the 480 cooling fin# id guess 15

cooling fin#
360 jug 20
320 jug 15
290 jug 18

somthin like that, someone correct me if im wrong

 

[Superduty88]

Thanks for the fast replies there's 18 cooling fins and I believe they are hex nuts I should be by the motor tonight to get more info and more pics