Search over on 4BTswaps.com there has been some recent and past discussion by several that have used them.

My opinion is if you're at the limit and like to push past it you need something stronger. They're not real cheap either.


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-