Original pair of GM heads both dated L 01 9, please verify all the castings for yourself as they can be difficult to read. The vast majority are big block Chevrolet with a few Pontiac mixed in. They came from a variety of places and I do not recall the story or history on each pair after all these years.
Please use the zoom feature to ensure this item fits your version of the "right part" and that it fits your application as I rely heavily on photos and your viewpoint for part description. I may think this part is really nice or in exceptional condition but that's my perspective.
I may have looked at dozens of broken original parts and know it's difficult to find a good one that is not broken. You may be looking Taiwan or Chinese reproductions made with half the thickness an OEM part has, but has shiny paint. I think the reproductions are junk because I know from experience they don't last, you may think my part is junk because the paint is not shiny.
We may see things very differently so please take the time to really inspect this part because I love to help people find parts to complete their project, that's my passion. If you feel like you need to see more or I missed something of importance please let me know and I'll gladly take additional photos to help you make a more well-informed decision.
While these are 50-year-old parts the vast majority of them have been stored away inside since the early to mid-1990's so they will have fared better than most. The item "Original Pair of 455 Pontiac 64 Heads L 01 9 OE Matching PAIR" is in sale since Sunday, March 17, 2019. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Engines & Components\Other". The seller is "starcrossedmoongazer" and is located in Tulsa, Oklahoma. This item can be shipped to United States, Canada, Bahamas.