I'm helping my buddy pull the tired engine from his '57 today. The question is whether to rebuild it (a 283) or to replace it with a modern GM crate engine. GM offers a small block for "pre-1985 vehicles) which looks at first glance like it should drop right in. I wonder, however, if it is really that easy!
Will the exhaust and intake manifolds from the original '57 still fit? Any issues with starter motors or other accessories we should know about?
TIA for any good advice, John