I was just wondering, what cars to look for as far as looking for a 350 or 403 Oldsmobile. I have an 86' Cutlass with the 307 that needs to be replaced. Not really interested in rebuilding a 307 when I want something with a bit more power than a light "chirp". I heard the Olds 350 is a very reliable motor for power and easy to build as far as power output. And if anyone built one, let me know what your build-up is and what your power output was like. I'd like to go with a 403 but with overheating problems that could be a problem. Would it just need a cooler thermostat and a bigger radiator? And what kind of rpms make it overheat? And last but not least would I need to go with a bigger transmission. I think I have the smaller trans in my car. On the bellhousing it says 409. Does that mean anything? Thank you all very much for your input and help. First Oldsmobile I have ever owned and I am pretty excited to have it. I am mainly a truck guy but have owned only 2 cars in my life. A 76' Camaro which is like putting a tricycle together. Easy. And a 65' Buick Wildcat with the 425 Nailhead. Which is like owning a 2 headed dog. Nobody has one quite like yours haha. So hopefully this car is somewhere in the middle as far as difficulty in build. Thanks again so much and I am glad to be part of the G-body community.
