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King Engine Bearings
King Engine Bearings Gm Vortec /Ls-Series Gen Iii Iv (Size STDX) Main Bearing Set
SKU: K006 MB1328XPSTDX
Easy — 1–2 hours
Overview
These bearings include enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. The King XP-Series bearings are race-only and built to handle extreme engine power.
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Part #: MB1328XPSTDX
We are bearing specialists. King Engine Bearings was founded in 1960 with one simple objective: to supply the highest quality bearings available in the marketplace. By specializing in engine bearings, King has built an extensive product offering that incl
Features:
- PMaxBlack for Superior Load Capacity
- Radialock for Optimal Crush Height
- Tri-metal Copper Based Material
MAIN BEARING SET For GM VORTEC /LS-SERIES GEN III IV
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Loud knocking noise from engine under load
- Low oil pressure warning light at idle
- Metallic grinding sound during crankshaft rotation
- Sudden loss of engine power or stalling
- Excessive engine vibration at all RPMs
Relevant Conversations
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- Main bearing install torque specs for SBC
- Co-purchase main bearing set and ARP main studs
- Performance engine rebuild parts for turbo build
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
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Specifications
| Brand | King Engine Bearings |
| Part Number | K006 MB1328XPSTDX |
Videos
King Engine Bearing & Crankshaft Installation Guide Feat. XP Bearings
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Engine Bearing Tech Myths | What You Really Need To Know
KING Main Bearing Installation - 5 Simple Steps
ACL Bearings | Behind The Power
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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