anyone heard of these bearings?
"These bearings are manufactured by KING BEARINGS. King is one of the top manufacturers for the US Space Program, and they use the same quality assurence on their engine bearings. King Bearings are not only of outstanding quality, but they are very unique in design. Here is where quality, design, and value all come together. These are simply the best bearings on the market. The benefits of using these bearings are:
Tri-Metal vs. Bi-Metal Bearings
Traditional rod and main bearing construction is based upon a three layer configuration composed of a steel backing, a copper-lead layer and a very thin overlay of babbitt material only .0005" - .0008" thick.
These bearing uses just two layers, a high strength steel backing plus a bonded layer of "Alecular" bearing material .012" - .015" thick.
Alecular material is an alloy of aluminum, tin, copper and several other elements. Because it is an alloy, it maintains its properties throughout its entire depth, delivering consistent and reliable performance.
Particle Embedability
More than half of engine bearing failures are caused by metallic particles which scratch crank journals and tear or weaken thin babbitt overlays such as in the tri-metal bearing.
Since Alecular bearing layer is much thicker than the babbitt overlay (.015" vs. .0008"), it provides eighteen (18) times more embedability than a tri-metal bearing to catch and hold particles so they don’t scratch the crank journals. This is especially true for particles over .0004" in diameter which cause most of the damage.
Conformability
The much thicker layer of Alecular bearing material (.015" vs. .0008") allows the bearing to conform to problems such as metal to metal contact when there is mis-alignment present or the connecting rods stretch. Greater conformability means fewer bearing failures.
Temperature Resistance
The Alecular material’s melting/fatigue point is over 11000 F, almost three times that of the thin babbitt overlay in a tri-metal bearing (400OF). This means added protection against localized overheating due to mis-alignment, detonation, overloading, loss of coolant, etc.
You simply CAN'T buy a better quality Bearing Set for any production application, AT ANY PRICE…"
any good??
http://www.ebay.co.uk/itm/300701210783?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649