Quote:
Originally Posted by blykins
The lifters have needle bearings or bushings in them. Solid cams have lash, which means that the lifter is not always in contact with the cam lobe. Couple that with much higher spring pressures than normal (usually around 600-700 lbs) and you have a lifter that is constantly being beat up. The lifters have a short life span and if you don't keep up with it, you can end up with scattered parts inside your engine and a ruined camshaft.
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Brent - What would the expected life span (in miles driven) be for mechanical roller cam lifters for an engine driven on the street? Thanks.