Rev Limit On 454 j

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06-27-2010, 04:20 PM
Tony Miller

Rev Limit On 454 j

Does anyone know what the rev limit on a stock 1997 454 J? The RPM gauge on this suburban does not have the normal yellow warning or red on it. I have read on some web sites 6500-7000 :eek: but that seems high for stock to me. I don’t think I will be hitting either any time soon but was curious.
06-27-2010, 05:02 PM
techinspector1

Quote:

Originally Posted by Tony Miller

Does anyone know what the rev limit on a stock 1997 454 J? The RPM gauge on this suburban does not have the normal yellow warning or red on it. I have read on some web sites 6500-7000 :eek: but that seems high for stock to me. I don’t think I will be hitting either any time soon but was curious.

I have no idea of the components in the motor, but I would be surprised if they were chosen by the engineers with much more than about 5500 rpm's in mind when they put the package together. Small intake runners in the heads, short cam, restricted induction package, etc.
06-27-2010, 07:10 PM
pat mccarthy

just before the rod fly out of the oil pan .:D all stock or what ????stock gears ?
06-28-2010, 01:40 PM
Tony Miller

Quote:

Originally Posted by pat mccarthy

just before the rod fly out of the oil pan .:D all stock or what ????stock gears ?

All stock. Nothing aftermarket. Unless what you say would happen!!! :CRY:
06-30-2010, 06:15 PM
shoprat

It's not made for high RPMs in stock form for sure. Rotating assembly is heavy.