Quote:
Originally Posted by Rick Parker
There have been from time to time on Ebay (and other place) advertised 4 bolt caps to the used as a replacement on "Stock" 2 bolt blocks. HOWEVER, from what I recall there isn't a lot of material (thick webs?) for the outer bolt holes to be machined into, otherwise I think it would be a more popular conversion. Anyone else have any coments on this ????? I also would have liked to see a forged steel crank available for 289's. This is one area it seems like Chevrolet always had a leg up on Ford, their cranks for the most part were forged. Although the cast cranks did OK, the "Little Bird" is always sitting on your shoulder, whispering in your ear as the tach goes past 7000 rpm??
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I have heard some builders say not to put 4 bolt caps on 2 bolt blocks for that very reason.
Chevy only put the steel cranks in their high performance engines. The rest got cast iron. The Chevy small journal engines did break quite a few cast iron cranks, which is why they stepped up to the large journal. I never heard of a small journal steel crank breaking, but I'm also not in a position to know all things.