A friend of mine recently acquired a January 67 350 engine. The stamp pad indicates 67 350 powerglide. He noticed that is has a large journal steel crankshaft in it. Were the original '67 350s small or large journal? Also he's looking at getting selling it so he's wondering what it would be worth? TIA
Chevrolet introduced the 350 to the world in the '67 Camaro SS. As the story goes Chevrolet didn't want any mechanical problems with the new engine so they used the large journal.
Every now and then this subject comes up and someone has an orig 350 block that has the small journal and a big argument insues. There have been published documents to support the large journal story, I don't have them to support this though.
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The interesting part is the block appears to have had clocking notches for the small jounal main bearings and also has the notches for the large journal bearings. They're both on the same side of the block but one is to the front and the other is to the rear.
It looked like the small journal notches were there and then it was machined again for the larger journals. So the small journal notches weren't very deep. The guy who bought it owns a machine shop so he was pointing this out to me. It was in the oven to get cleaned so I didn't geat a real good look at it.