Not to be mean, but I need to disagree again.

The main and rod journals on both the 702 and 351 are identical.
The crank pin diameter, where the rod sits, is 2.8107", and the crank main journals are 3.123"

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-