[Draginwagon]

There were no LS-6 Montes Factory Built, of course that's not to say someone didn't do it at a dealership, or a COPO might have slipped through, but you would need an original buildsheet to prove it's existance. LS-4 was the Monte SS as far as I know, and according to the "Standard Catalog of Chevrolet". Also, dealer order books from 70 show only the LS-4 availble as a standard factory option in full size Chevy's. Some LS-5's were done, but all would have been a COPO. Special Order. All that said, any 454 Monte, Impala or Caprice is a car well worth owning.
All that being said, I have attached a Pic of my LS-5 engine, in my Full Size Chevy Wagon. And, yes, I do have the build sheet with it listed.
Let's keep them BIG Cars rolling !