Product Description
King SI-Series Main Bearings for LS/LT Engines MB5293SI
Fits 1997-2024 LS and LT Based Engines with Stock Crankshafts 4.8L 5.3L 5.7L 6.0L 6.2L
Set of Standard Size Main Bearings
Not for use on Gen V auto Start/Stop engines, see MB5293MC for the coated bearings for those engines
King's Si-Series Main bearings are ideal for stock replacement and mild performance applications utilizing a factory crankshaft. Not for use with aftermarket crankshafts (see HP or XP series bearings for aftermarket crankshafts). These direct replacements have an improved finish for reducing microscopic peaks on nodular cast iron crankshafts. King SI-Series main bearings also feature improved oil clearance to reduce wear and increase engine life—which, in turn, lessens operating noise, vibration, and excess oil flow. The Si Series top layer offers great embeddability to help prevent foreign debris from damaging OEM crankshafts.
Note: King (as well as most other bearing companies) no longer makes these bearings with a locating tab on the thrust bearing. This is to allow the same part # to fit more applications. The locating tab is only used to locate the bearing front to rear on the block and cap saddles, which is not needed on the thrust bearing since it is already located by the thrust side walls.
Fits: LS1 LS2 LS3 LS6 L99 LSA L92 L9H L94 LS2 L76 L77 LY6 L96 LFA LZ1 LY5 LMG LMF LH6 LC9 LY2 L20 L33 LQ4 LQ9 LR4 LM7 L59 LS4 LH8 LH9 LT1 L83 L86 L84 L87 L8B
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Perfect!
Great customer service and as always, Good quality and good price!! Michigan Motorsports is my go-to for my L.S. stuff!
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Bearing install
The bearings look legit.
