11-19-2004, 07:17 AM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
"The" book on FE's talks about the lubrication difference between hydraulic and mechanical lifter rocker shafts. The groove versus hole as Rick pointed out is the trick to look for.
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