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"We bored the cam housing bores from 2.250-inch to 2.674-inch for 60mm roller cam bearings. The front cam bearing area looked like it would fall off with most of its metal now gone, and a steel support was fabricated and locked into place with Irontite repair plugs. To my surprise, the large 60mm flat tappet cam with its increased base circle and .437 lobe lift moved the stock lifters so far out of the lifter bore that the necked down portion was exposed. View Related Article
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