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I do think there is an issue with the OEM bearings at high hp FI applications,...I feel others aren't putting ACL or aftermarket bearing in because they are not available so they roll the dice. I do believe its an oiling issue, which an aftermarket performance bearing addresses with more oiling clearance. The stock bearing is hard, extremely hard, to hard for a performance application in my opinion. I had bearing failure on E85 with no detonation with a very sound tune on a built motor running close to 400whp Using Amsoil 10W 40. I'm now equipped with Accelerated Performance Pauter rods with ACL bearings and at 300whp @ 10 psi with no issues.
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