oliver 70 engine

[mrhud]

how big can that engine be made into , or whats the biggest that will fit in

 

[scootergmc]

What are the goal and objectives? Pulling?

The stock engine has limitations, namely parts availability. If I remember correctly, if you're going custom, you're going to be sinking a lot of time and money into it and you're probably better off with another tractor like a 77.

 

[mrhud]

want to stay under 3500lbs. so will the 77 engine fit

 

[scootergmc]

No.

The early 77 tractors can get you into the 3500 class. There are posts here of guys doing it with some equipment notes. For example:

https://forums.yesterdaystractors.com/threads/oliver-77-in-the-3500.844417/

Hope it helps.

 

[buickanddeere]

how big can that engine be made into , or whats the biggest that will fit in

Gasoline 4-speed 2WD April 13 - 24, 1936 Link: Nebraska Tractor Test 252 file
Belt power (max)	28.40 hp 21.2 kW
Belt fuel use (max)	2.7 gal/hour 10.2 l/hour
Drawbar performance
Max power	21.93 hp 16.4 kW

Gasoline 18-speed 2WD May 7 - 22, 1970 Link: Nebraska Tractor Test 1042 file
PTO performance
Power at rated engine speed	70.27 hp 52.4 kW
Fuel use	6.6 gal/hour 25.0 l/hour
Drawbar performance
Max power	57.44 hp 42.8 kW

Oliver
gasoline
6-cylinder
liquid-cooled
Displacement	201.3 ci 3.3 L
Bore/Stroke	3.125x4.375 inches 79 x 111 mm
Air cleaner	oil bath
Rated RPM	1500
Firing order	1-5-3-6-2-4
Oil capacity	5 qts 4.7 L
Coolant capacity	4.5 qts 4.3 L

Oliver-Waukesha
gasoline
6-cylinder
liquid-cooled
Displacement	265 ci 4.3 L
Bore/Stroke	3.75x4.00 inches 95 x 102 mm
Air cleaner	dry
Compression	8.5:1
Rated RPM	2200
Firing order	1-5-3-6-2-4
Starter volts	12
Oil capacity	8 qts 7.6 L
Coolant capacity	20 qts 18.9 L

 

[dnd]

Good morning, I’ve attached two pictures for your enjoyment. I do have a third tractor but didn’t have a picture of it.
The Hart Parr 70 I did a bit of work on it quite a few years ago, if I remember correctly it Dino at 50 horse and we could weight it in at 3200 pounds with a 175 driver quite easily. We put bigger sleeves and piston in it for sure. I also have an Oliver 70 that we pulled prior to doing the Hart Parr, that one would also slide into to 3500 pounds quite easy. If I remember that one would put out 39 on the Dyno. Lastly is a 77 diesel. Put in larger sleeves and pistons, did an offset grind to the crank, shaved pistons down to top on block deck. Pulled 3500 on up, +55 horsepower.
I don’t pull anymore so any and all are available.

 

[mrhud]

allready have the 70 row crop with no other use for it, any aluminum i got my hands on would go on the 37 wc allis