300" Buick Main Bearings ?

[roverman]

A.I.R., 4.0-4.6L RV8 is 2.450" dia. ?  On this forged crank, I want to start with 2.500". Where to buy HiPerf. bearings ?
                                                                              Thanks, Art.

[minorv8]

Art, they are 63.500 mm which is pretty close to 2.5".

[roverman]

Yes, Thanks, Art.

[MGBV8]

TA Performance used to carry the hi perf for the 455.  Not sure about the 300.

[minorv8]

Assuming you have 4.0/4.6 block and you need bearings for that application check out King Bearings.

www.king-catalog.com/Catalog/Engine/10079073 (4.6 litre)

If you have a 300 block and want to use 4.6 bearings the link includes dimensions for mains bore size. Width of the bearings may be an issue, especially the flanged shell.

[roverman]

Thanks Jukka,  Even more, out-there. I'm machining an SBF, 4340 raw forging crank, to fit RV8.
                                                                               Art.