SBC CHEVY 400 HP KING MAIN BEARINGS BI-METAL 1/2 GROOVE MB-509-HP-010 UNDER
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KING HIGH PERFORMANCE MAIN BEARINGS FOR CHEVY 400 ENGINES. 1/2 GROOVED. .010 UNDER
FILE PHOTO. ACTUAL APPEARANCE MAY VARY.
The HP line of King bearings is a much higher grade of bearing compared to the SI line that King offers. These are used exclusively on all 4340 forged cranks, as well as the cast nodular style crank. As you may know, Clevite offers a high end line of bearings known as the Clevite 77 (Performance) series. King's HP line is competitor to the 77 series. The King HP series has addressed any and all needs that the serious racer demands. Excellent for street use and extreme high horse power applications. Below are a few of the differences of the HP line vs. the regular line of King bearings. The builders of extreme high performance engines are all familiar with this product, and have used them for many years.
Do understand that if you're going to be running a 4340 forged crankshaft, you MUST use a high performance bearing due to the radius where the journal meets the counterweight. You cannot use the low cost bearings on these type cranks. You can use this the HP line on the lower cost cast cranks if you desire.
The HP in the part number denotes the high performance series, and the SI bearings are the regular line of bearings offered by King. As mentioned above, you must use this series of bearing when using a 4340 forged crankshaft, and you can use the HP series with any cast nodular crank.
ALECULAR PRO SERIES HIGH PERFORMANCE
Recommended for street and strip performance including: blown, turbo charged, NOS, and alcohol fueled engines using aftermarket crankshafts.
King bearings are outstanding in quality and unique in design. Here is where quality, design, and value all come together. Engine bearings are very critical items, and must be of high quality. We know for a fact that there are many inferior bearings on the market, and many of the so called name brands outsource the product to manufacturers that simply are not into building high end bearings. They don't address any of the critical factors such as metallurgy and design. The King bearing company specializes in engine bearings.
Tri-metal vs. Bi-metal Bearings
Benefit No.1 - Particle Embedability
Benefit No. 2 - Conformability
Benefit No. 3 - Temperature Resistance
Benefit No. 4 - High Load Capacity
Benefit No. 5 - Control of Wall Tolerance
Benefit No. 6 - Crankshaft Endplay
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