Olstangguy
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- Jan 2, 2007
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Is it necessary to remove the rocker arms and lash adjusters just to swap PI for NPI cams or can they just be torqued down without removing the followers? and - 2. Is there any advantage in changing NPI valve springs to PI while I'm in there? 91,000 miles. No further mods to this engine are anticipated. Thanks for any advise given.