1G How do you ID the different types of cranks

[setsaki]

Good evening, i am currently shopping around my local shops in search of an 4g64 crank, saw one today that had 67 on the crank and it said to be a 2.4 crank by the seller.

* just wanted to know if that info is true, been looking around the forum and dont see where its shown how to identify the 2.4 crank

 

[jstoned1]

Take a look at this page - dont know if it's what you're looking for but there is some info on casting numbers on there.
It says G64B, G4CS has a 64 casting mark
And 4G64, 4G64FR has a AT1,K casting mark

http://crankshaftsupply.com/crankcatalog.htm