I have a 1949 Chev 3600 truck with a tired 235 and through help on this forum I've found this is not the original engine. I've posted questions on ways to improve my top end speed to enable occasional longer distance highway trips which is not possible with my current 235 engine ... which tops out at about 45 mph. I've received suggestions on converting to a 261 engine and wanted to get more information on what modifications I'd need to consider in making this change. Depending on what I get back, I'll turn my attention to the parts forums to ask about 261 engines for sale. Thanks.
