Different mounts,lengths,parts,,,etc........
to a degree
i believe the length is the same on all L6 motors per santucci's book.
the GMC 302 is longer
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=009527#000003
http://no25.chuckthetruck.com/index.html http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=009302#000005
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=013805#000001
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=006945#000001
http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=2;t=004121#000002
this reference shows the length is the same as your 235 as well as any L6 :p
what interchanges
[b]crankshafts from any of these engines also swap around. there's three basic crank types - the 194/230 (3.25" stroke), 250 (3.53" stroke) crankshafts from any of these engines also swap around. there's three basic crank types - the 194/230 (3.25" stroke), 250 (3.53" stroke)[/b]
crankshafts from any of these engines also swap around. there's three basic crank types - the 194/230 (3.25" stroke), 250 (3.53" stroke) http://no25.chuckthetruck.com/page2.html