Case tractors with 3-71 GMC engines

[GeorgeBest]

A friend of mine told me that a local farm estate must be getting ready for an auction as they are pulling all the old tractors and equipment out of the brush.
I guess there are several of the L or LA Case tractors with the 3-71 GMC conversion.

Just wondering during what years were these conversions made? Who did the conversions? Was it a business making the conversions or were farmers doing their own conversions?

I've never seen one in person and really don't know much about them other than they exist.

[Merton]

I bet the old operator who used run the tractor is "hard of hearing " now. I do not know who did the Case conversions but Kinze used to re power Tractors with Cummins Engines. If the Engines have GMC on them they are from pre - 1960. In 1960 GMC engines changed to Detroit Engines so IH could put them in their Trucks. Thanks Merton

[DaveErnst]

Didn't Massy Ferguson and Oliver use them also? I've seen an Oliver with one at a tractor pull that could be heard a mile away....

[Gene Dotson]

Dave;
Oliver used the 4-53 series engine in the 1950GM. This the real screamer. Believe the 990GM used the 3-53 engine, but not real positive... Gene

[GeorgeBest]

The Oliver 99, 990, and 995 all used the 3-71.

Oliver also built the MF98 which had different sheet metal and painted in MF colors.