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Quick Acl Bearing Question Guys.

rockabilly

By rockabilly,
in Engines & Forced Induction

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rockabilly Rising Star

rockabilly

Posted
Posted

just got my acl bearing s from my engine builder. the mains are all the same apparently rb25/26 30 but the big ends he has supplied say rb30 only.. will these be ok for a 650 fwhp or should i exchange them for 26 ones. i am using spool rods..bernie uk.

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proengines Rising Star

proengines

Posted
Posted

Hi Bernie, the RB30's use a different conrod bearing to suit the larger diameter conrod journal so you can't use RB26 ones. The mains are the same dimensions, the RB26 mains have more oil feed holes which you don't need in an RB30 but won't hurt anything using them.

Cheers,

Greg.

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