Hydraulic roller lifters to solid flat tappets?

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#6 (permalink)

07-11-2012, 06:51 AM

Danr55

Senior Club Cobra Member

Join Date: May 2007

Location: Mesa, AZ

Cobra Make, Engine: Contemporary Classic, 428 FE CCX 3069

Posts: 7,515

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You can make the change without any modification to the block, but you have to change the cam. There are several dimensions on a roller cam that are different from a flat tappet cam, solid or hydraulic. besides, why would you want to make a change like that unless you plan on running at 7500 RPM. A little racing in the future?

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