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Using NASCAR small block narrow rod bearing CLE CB481HN?

Posted By: Dibbons

Using NASCAR small block narrow rod bearing CLE CB481HN? - 07/04/17 08:56 PM

Just spoke with my custom rod manufacturer who told me he machined the bearing tab slots differently in the upper and lower parts (rod and cap) of my connecting rods. The reason being the sample connecting rod bearing I sent him had the tab offset a little differently between the two halves. At least, that is what I understood from the conversation a few minutes ago.

Now that to me sounds extremely odd/strange/disconcerting. I hope he did not screw up the orientation of the rod bearings somehow. The reason for using this narrower NASCAR rod bearing (CB481HN) is to accommodate a crankshaft with full radius fillets. Anyone have experience with this Mopar small block connecting rod bearing and/or the full radius crankshafts? This is all new for me. The project I am working on is a de-stroked 340 to 305 by way of a 2.96" stroke crankshaft replacing the standard 3.31" crankshaft. Thank you.
Posted By: 340Cuda

Re: Using NASCAR small block narrow rod bearing CLE CB481HN? - 07/05/17 05:00 PM

I would think with what is really a stock type bearing the tab would be the same. However if he has a bearing and thinks the tab needs to be moved it would be hard not go go with that. I assume this is a name brand company with lots of experience.

Just curious but what is the engine going in?

Thanks,
Bill
Posted By: Dibbons

Re: Using NASCAR small block narrow rod bearing CLE CB481HN? - 07/05/17 09:09 PM

The project car is a 1972 Plymouth Satellite Sebring Plus which I am going to call a "Super Satellite" a brother/cousin, so to speak, of the 1970 Plymouth Superbird. Eventually it will have a custom aero nose and wing, based on the short-lived Chrysler wind tunnel studies of the '71 Road Runner/Charger. The reason for the 305 is because, per NASCAR rule changes in 1971, the winged Mopars were limited to a 5.0 liter motor. This car will be an example of "what if the NASCAR program had continued successfully thru 1972 model year". One may search "Introducing Project Odyssey" on "For BBodies Only" (FBBO) website for more project details.
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