King's claim to fame:

Alecular™ King Racing’s Bi-Metal structure
The .015” thick top layer can be squeezed and worn up to .010” (vs. tri-metal .0005”)
without damaging the crank journals
Its Vickers hardness of 40 withstands short duration high loads better
than softer Babbitt’s Vickers hardness of 15-20
The thick top layer provides better macro-particle (>.00025”) embedability vs. a typical tri-metal Babbitt (.015” thickness vs .0005”)
The Alecular temperature threshold is almost 30% greater
than tri-metal (450ºF vs.350ºF)
KING developed the HP Series featuring the Alecular™ metal structure. Alecular™’s main benefit is its ability to contend with high loads for short durations. The Alecular™ metal structure was developed for specific race applications such as drag racing which can benefit from a harder than Babbitt top layer material. Alecular ™also serves other performance applications that use nodular cast iron crankshafts, such as street/strip and some levels of circle track racing.

TomZ,

My name is AJ from King Bearings, I apologize about your bad experience with our product. I am here to help work out the issue!

Feel free to email or PM me to discus further.
[email protected]

Best regards,
AJ

That was like rubbing a genie lamp!:Score-101010:

Clevite mains showed up last night. These are just plain ugly. The coating Clevite uses is bad looking. And...

the thrust upper bearing has a scratch right smack dab in the middle of the journals contact surface. So much for quality control.

I reordered a set of King rod bearings. Should be here Monday. Looks like another return on the Clevites. Going to go with King again on the mains. Who knows. I might be able to have this thing together and on the Dyno before the year is over (good lord). SMH

AJ, many many thanks for popping in here. I'll send you an email later this evening.

Wow Tom

The bearing fairy has it out for you.

I know, right?!

could be a chinese knock off....that crap turning up everywhere !!! call King

Nah. They're the real deal. Their race bearings are ugly. The scratch on the the thrust bearing's surface is where I have the problem.

The King race bearings looked pretty until I looked them over closely. Lots of fine scratches and nicks in the sides of the shells. At least they were packaged nicely. The Clevites were all loosely packaged.