Can somebody tell me what year block this isou: it is a 455..#1241735....and also this crank:grin: ..#1379242.... Thanks
Crank Number Take another look at your number on the crank. I believe it should be 1378242 which is the same for all of the big block cranks. I just replaced the crank in my 70 GS 455 with a crank from a 72 455 which has the same part number cast into it. Hope this helps. Larry