235 Block casting 3769716 (could also be listed as 3739716):

Truck - 1960-62 Mech. Cam, Front Center Mount
Passenger - 1958-62 Std. & P.G. Trans, Hyd. Cam

The 261 engine 1960-62 is block casting 3769717


-Tom

1950 Chevy 3100 w/ 1956 235