From the federal-mogul site....
http://website.federal-mogul.com/cda...3_6915,00.html
Quote:
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When using solid or roller lifters in these engines it is common to block off or restrict the oiling to the lifter galleys. The factory 427’s with solid lifters did not directly oil the lifters, so this should not be a problem. Another frequently seen oiling modification is matching of the main oil passages to the holes in the bearings.
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