...they came in 332-352-383-390-406-410-427-428 for cars, 352-390 for light truck and 361-391-427 for medium truck as well as several marine and industrial versions. In fact more 427s were built for industrial uses than for cars! Lots of generator, pumps and compressors are 427 powered. Some versions are useable in a car, some require modification and of course there are "reverse rotation" marine versions. Start stalking construction companies with older equipment....
The truck 361-391 versions have forged steel cranks but feature a larger diameter front extension and thus require much machining to use with a normal damper.
Yes, they are a big lump 'o iron and are expensive to build....thats why everybody know a small block is better!
Rick
