With the high value being handed over for cars with apparent matching numbers and even bare blocks, thought it might be worthwhile starting a thread on how to spot a re stamped block. Obviously the first port of call is the cast date... but even that aligning is no guarantee...
Likely this will only apply to JP's, NP's, CK's etc... the higher value blocks....
I have accumulated at least 40 JP engine pics from various sale sites and even this site over the years.... so out of them, these are my pics for restamped numbers.
I have blanked out a couple of digits to save shit fights, please do the same if you have any obvious one's to post
JP1550XX - restamp.jpg 39.54K 18 downloads
JP1943XX - restamp.jpg 61.76K 12 downloads
JP2430XX - restamp.jpg 79.65K 11 downloads
JP3281XX - restamp.jpg 113.35K 14 downloads
JP36044X - restamp.jpg 67.9K 12 downloads