The pan for the 292 is close, however it fits if you dont intend on raising the crossmember within the frame (to go lower). There is about 3/4" clearance It also fits with the 216 and 235. Dont know of anyone with a 261 yet. you wont be pulling the oil pan from the engine while its in the truck, however the I-6's fit.

On a side note, I would modify an oil pan before I raised an engine to make something fit.

The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me