V8 powered tractors from the top of my head:
2255 Oliver, 3150 or 3208
CAT
2-180 White, 3208
CAT
1150 Massey, AV8.510 Perkins
1155 Massey, AV8.540 Perkins
2745 Massey, AV8.540 Perkins
2775 Massey, AV8.640 Perkins
2805 Massey, ATV8.640 Perkins
I think that's all the fixed frame V8's that were factory.
Articulated 4wd used all kinds of V8's...some V6's in the old Versatiles and Steigers.
476 Cummins V8
555 Cummins
903 Cummins
6V71 Detroit
8V71 Detroit
DV800 IH
3208
CAT
There were even some of the bigger V12 and V16 Detroit's used, along with a Scania V8 or two in some old Case's, some V12 and V10 Deutz's, and I'm sure I'm forgetting a few more. V8's were used A TON in tractors, and contrary to popular belief, they didn't all blow up. Lots of them are still running, and some people actually liked them.
They seem to do very well in the pulling classes too.
Chris