Thread: how can i tell if it a 429?
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06-13-2006 12:45 AM #3
One way is to flip the motor over and unbutton the pan. One of the crankshaft countrerweights has alphanumeric markings stamped on it's edge, and these markings identify whether it's a 429 or 460 crankshaft.
429 = 4U, 4UA or 4UAB
460 = 2Y, 2YA, 2YAB or 2YABC....or 3Y or 3YA.
Also, for quick identification of the crankshaft, you may look for the nodule or embossment between the first main journal and counterweight. The 460 is embossed there, while the 429 is not:
429
460
Paul
429/460 Engine Fanatic
John's ride to the cemetery, his beloved Billings OK bus, The Baby Elephant!! Traveling in style!! - -
John Norton aka johnboy