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King Engine Bearings MB529HP Main Bearings Bi-Metal PKing offers 3 levels of main bearings for use in OE Stock,High Performance, and Extreme Performance applications. King mainbearings are sold in engine sets.AM-Series &amp SI-SeriesBearingsKing AM-Series &amp SI-Series bearings are recommended for OEapplications. AM-Series bearings are aluminum-copper-tin plus Alloyon high-strength steel (Bi-Metal). SI-Series bearings areSilicon-Aluminum bearings (Bi-Metal) are designed forAftermarket Gasoline or Diesel Engine Rebuilding &ampPerformance Engines with OE Crankshafts.HP-Series BearingsKing HP-Series bearings are recommended for street and strip highperformance applications. These Bi-Metal Silicon Aluminum bearingsare designed for blown, turbocharged, NOS, and alcohol-fueledengines using aftermarket crankshafts. These bearings havechamfered oil holes are fit aftermarket cranks machined with alarge radii at the edge of the journals. Most main bearings in theHP-Series are 3/4 grooved for improved oiling to the rod journals.Ideal for use in High Load, Short Duration Applications likeDrag Racing, Tractor Pulling, Monster Trucks, etc.XP-Series BearingsKing XP-Series bearings are for extreme performance in high-loadcapacity applications. These Tri-Metal copper lead bearings aredesigned use on cranks with large radii (narrow rod bearings) andfeature enlarged, chamfered oil holes with 1/2 grooving (on mostmain bearings) for uncompromised lower bearing load capacity. Idealfor use in High Load Circle Track &amp EnduranceApplications.What does the King part number Prefix/SuffixmeanNOTE The term "Undersize" refers to a thicker bearing whichis used when the Crankshaft has been turned down and is nowundersized, not the bearing itself. The term "Oversize" istypically a thinner bearing than stock to allow for increasedclearance.Select your application below.Chevy Small Block,LS,400ci,Big BlockChrysler 318/340ci,426 Hemi/440ciFord 289/302ci , 351C , 351W , 4.6L SOHC (Cast I
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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