Hi Ray;
I'm brand new around here (first post) but i'll try to help as this is the very info i was seeking myself....
And here is what i found out........
The stampings on the distributor surface.......
I think you are correct there about where it was cast and when, i too drew a blank on the code but it refers to compression ratio and accessories.
Con 2 is indeed conveyor 2 the date should be next eg: as shown on one i have here... "C124" means March 12 1984, i think 1984 because it has the later type "coil on cap" HEI distributor.
You are correct with the meaning of 473483 and yes, the year can be determined as i have shown above......
The 2 diget number below 473483 and "GM", in my case the numeral "11" indicates the casting number.
I dont know what the crank # means other than a serial # maybe?
Do you have the 12 counterweight crank? apparently it is the latest/best??
The little clock symbol indicates the "shift and time"
3483? where is that number on your block? it looks like it could be the month and year #... are you certain the first symbol is a 3 and not a letter?
eg: A=Jan, B=February and so on.........
Not sure about the heads question........
Saran wrap sounds like it may trap moisture but i really don't know...maybe toss in a bag of "silica gel" to absorb moisture....
Like will Rogers said "all i know i read in the newspapers"
but i hope this helps out a bit........
I have a number of questions of my own which i'll be asking the good folks around here to answer......
