273 time to 'fish or cut bait'...

65Cudafix said
View attachment 1715059403 View attachment 1715059402

Toolmanmike, Just visited the machinist who has my heads. I really don't like the guy much, but he's the only guy in this zip code that does what he does... anyway here are what he and I believe are the numbers . Looks like 2465315 - 1 & 2..

I after reviewing your 273 build thread again I've decided to go with the Izzy's cam like you did, since it will work with my (adjustable) rockers and stock valves... Let me know what you think about the parts numbers..

65Cudafix
Click to expand...
The part numbers tell me they are a 64-65 273 head with 1.78 and 1.50 valves. it looks. It looks like the date is 4-21-64. I would have to get into my parts book to see if there is a difference in valve springs.
I am not a fan if the double springs that Isky recommends. I (and many on here) would recommend Comp Cams 901's. They are a perfect replacement and slight upgrade for stock springs. https://www.summitracing.com/parts/cca-901-16