This 261 seems to be getting stranger all the time. We couldn't get it started on Sunday, no spark, maybe I can use the coil from my 216. We'll try again next week, I would like to check the compression also. Checked some more numbers, the block had 0591256 F255N on the flat spot to the rear of the distributor, and 3835913 on the head which is for a 235. I haven't checked the head yet to see if it was drilled out for steam holes. Maybe I should just rebuild the 1954 235 engine I bought last year.
