Oliver 880 engine

[Wi Olie 77]

I have a question: I am looking at buying a Super 77 with no engine. I found a 880 gas engine and I was wondering how much modification it would take to fit in the tub. I thought it would have a little bit more HP but was curious if this is going to be a nightmare project to fit in. Any thoughts.
 

[jordan hackman]

i am no expert but it should just drop right in. technically the motor in a 1950-t or 1955 can be put in a fleetline 88 so a an 880 in a super 77 shouldn't be to hard. but remember what i said i am no expert.
 

[BradWi]

im not for sure but i think the 770 engine is a 1/2 inch shorter than an 880.I assume the 77 would also be shorter.Look in the archives i know this has been discussed before at length.
 

[duane o.]

i recall in the 880 there are 2 sets of engine mount holes in the belly leading me to believe it is a unifit belly. check your 77 it might be the same. i know the 302 99 and the 1800 310 have the same mount mesurements too.
 

[rustyplow]

I put an 880 engine in a 1550. 1550 engine is the same as 77,just newer. You have to cut 1 inch of the pto shaft. The front splines on the shaft are 2 inches but only go into the drive hub 1 inch, so theres enough there. Also the coupler for the clutch. The water pump sits higher on the 880 so needs to swapped with the 77 pump to claer the fan shroud. The engine itself lines up with the 4 mounting bolts. I'm sure I've forgot something. The PTO shaft. Did I tell you to measure 3 times?
 

[Wi Olie 77]

Thanks for the help
 

[mm585]

We have a 77 with an 880 engine in it. Had to shorten the pto shaft an inch and make new slots for the cluth coupler in a milling machine, and tweek the fan schroud a little. I put a diesel radiator in it but it still gets warm running an auger under full load.
 

[chucksoliver77]

Wi Olie 77, when i put a 310 in my 77, which is the same size as the 880 engine, just slid it ahead about 1" and drilled new frame/engine mount holes and bolted it in and i didn't have to shorten the pto or drive shaft. but you must be very careful to get it aligned right. you may have to slide the radiator ahead a little and this is easily done by unbolting it from the shell, slide it forward and drill new holes through the existing holes in the shell and into the shroud and bolt it up. seems like a lot less trouble than cutting the shafts. just my 2 cents, chuck