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Central Illinois | I will call BS. First of all I have never had a crank failure due to the under-size alone so no fear if done by a competent machinist. If .060 under is enough to cause a crank to fail ,it would have broke @ std. specs. .Second is accidentally grinding that much off a journal let alone four of them. I would suspect that there was a set-up error or some one made a mistake during the turning process. Needed to go .060 under to cover their arse. One other possibility is they did you a favor. Many "stock" race engines have had their cranks offset ground deliberately to gain almost .055 inches of stroke and also raise the compression ratio . You need to have an honest set-down with the shop owner. steve | |
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Question about a Super M crankshaft
