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These Summit Racing™ main bearings are just what you need to freshen up your engine. Why? They use silicon aluminum bi-metal construction. Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold. Bearing wear is dramatically reduced and the fatigue strength is greatly improved.
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$56.99
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$89.99
King XP-Series rod bearings feature advanced metallurgical and geometric technologies that meet extreme performance loads. They were developed for all performance applications that use forged steel aftermarket crankshafts and produce high loads for extended periods. King focuses on one product—bearings—and nothing else. Their innovative race-only Xtreme Performance Max Black Tri-Metal rod bearings have a 24 percent stronger overlay and 17 percent more fatigue strength by using a micro process called SecureBond. Built with enhanced tri-metal, King XP-Series rod bearings layer copper-lead construction with a nickel plate barrier and a lead/tin/copper Babbitt overlay over a steel backing in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors—at an amazing +/- .0001 in.! XP-Series rod bearings are narrowed on the crank cheek side with increased crush height for improved bearing-to-bore contact, heat transfer, and reduced spin potential in high-rpm applications.
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$50.99
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$109.99
ACL Performance offers Race Series rod bearing sets for a wide range of vehicles. These high performance tri-metal engine bearings are designed to withstand higher RPM conditions. They feature a high-strength overlay plate with reduced thickness for improved fatigue properties. Select the crankshaft undersize and quantity recommended for your year/make and engine application. Additional details: * Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing. * Increased crush for improved bearing retention * Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing * Increased eccentricity to compensate for bore distortion at high RPM and to assist in the formation of hydrodynamic oil films * 3/4 in. grooved main bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings * Tight consistent wall tolerances to help you maintain consistent clearances * Enlarged ID chamfers on bearing edges (where required) to accommodate large fillet radius on performance crankshafts
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$83.99
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$114.99
King HP-Series rod bearings were developed mainly for drag race applications needing a material harder than the Babbitt top layer. These applications demanded a structure that could withstand high loads for short durations and still offer higher embeddability and compatibility. In response, King developed the HP-Series, featuring the Alecular metal structure. The HP-Series is also suited for many performance applications with nodular cast iron crankshafts, such as street, strip, and some levels of Circle Track racing. Order the set recommended for your vehicle. HP-Series bearings are particularly suitable for the following cases: * When a tri-metal bearing's Babbitt overlay extrudes over the sides, migrates to one end, or is physically removed by the crankshaft * When the intermediate layer of a tri-metal bearing is exposed, damaging the crank journal and requiring expensive grinding or replacement * When contaminants enter the oil stream, scratching and damaging the crankshaft journals
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$66.99
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$108.99
These Sealed Power MA Series main bearings can actually polish the journals on your crankshaft. That's because there's a small percentage of silicon mixed in with the aluminum and tin that make up the bearing-surface alloy. The silicon is there for wear resistance, but its toughness actually smoothes the journals of a crank whose surface hasn't been optimized! This special surface alloy is laid over a high-strength 1010 steel backing and delivers improved seizure and corrosion resistance, as well as better control of wall variance. It also helps to minimize debris embedding, which can score the crank's surface.
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$92.99
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$109.99
King HP-Series main bearings are recommended for street and strip performance applications. They're designed for blown, turbocharged, NOS, and alcohol-fueled engines using aftermarket crankshafts. These main bearings have greater eccentricity for superior oiling at high rpm, and a chamfered surface for large radii crankshafts. HP-Series bearings also feature large, chamfered oil holes—and are available in 1/2 grooving for improved oiling to withstand high-rpm applications. Order the bearings designed for fitment with your specific engine.
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$106.99
For some engines, the softer and more conformable nature of aluminum is preferable to the stiffer characteristics of the steel backings used for many bearings. Clevite AL-Series main bearings offer the features found in OE-type aluminum bearings, combined with the distinct advantages of proven Clevite know-how. That includes things such as carefully chosen eccentricities tailored to the application, and that means solid, reliable performance. Clevite AL-Series main bearings are a great choice for anything from OEM-style rebuilds to mild performance applications. Clevite recommends these main bearings for most engines using a cast crankshaft.
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$52.99
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$85.99
King HP-Series cam bearings are precision-machined to tight tolerances to control installed oil clearances, reducing operating bearing pressure. These cam bearings are constructed from seamless steel tubing with a thin layer of lead based babbit material to reduce microscopic deflections. The babbit is quickly cooled in the casting process to achieve a very fine grain structure, doubling tensile strength, therefore, the HP-Series offers much more fatigue strength than conventional bearings, and can withstand racing spring loads, while maintaining the excellent surface characteristics of babbit. King also offers HP-Series bearings with a fluoropolymer coating. Bearings with this coating retain engine oil on the surface, even under extreme heat and pressure—a great advantage! Plus, being a lubricant, it provides backup during start-up and in the event of momentary oil starvation. Use track-tough King HP-Series cam bearings in your engine—and experience the difference.
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$86.99
Clevite P-Series main bearings are the oldest members of the Clevite 77 bearing family and are intended for high-revving engines. To compensate for the high-load factors and distortion in these engines, these bearings have higher eccentricity and a high crush factor. P-Series bearings are constructed of tri-metal cast copper lead. They have a steel back for support, a cast copper lead lining to withstand the loads of engine operation, and an electroplated babbit overlay on the running surface to provide searing surface qualities. In addition, the oil grooves on most applications extend all the way around both halves for better oiling. Clevite P-Series main bearings are an ideal design, producing a degree of conformability, embedability, slipperiness, and fatigue resistance, not found in original equipment and competitive bimetal bearings.
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$76.99
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$97.99
If you're building a high-level competition engine, you'll definitely want to consider Speed-Pro Competition Series rod bearings. They were developed in the trenches in NASCAR and Pro Stock competition, so you know they're tough. These bearings are built on premium 1020AK steel backings and overlaid with Speed-Pro's super-duty H-14 alloy. That's covered with a nickel barrier, followed by a thin lead-tin-copper overplate. However, unlike other performance bearings, there is no flash tin layer on top of that. That's because Speed-Pro engineers have determined that such a layer can actually move around under high performance conditions, sometimes resulting in undesirable consequences. Order the set designed for your vehicle and engine application.
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$74.99
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$102.99
Summit Racing™ offers Race Series rod bearing sets for a wide range of applications—including many Chevrolet, Buick, Ford, Ram, Jeep, Dodge, Chrysler, and Plymouth small block, big block, and Hemi engines from 1955 and up. The bearings provide a low-friction pivot point between the connecting rod and the crankshaft, and the connecting rod and piston. They keep the crankshaft and connecting rod in place as they rotate. These performance replacements are machined from tri-metal copper-lead alloy and are available in numerous engine crankshaft undersize options. Order the set recommended for your vehicle.
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$52.99
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$106.99
King MC-Series engine main bearings are available for a wide range of vehicles, including models from Chevrolet, GMC, Ford, Cadillac, Hummer, Isuzu, Pontiac, and Saab. These stock replacements are machined from bi-metal silicon aluminum and sold in sets of 5 or 6, depending on your application. Main bearings hold the crankshaft in place and allow it to rotate within the engine block.
Not Yet Reviewed
$53.60
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$79.99
P-Series rod bearings are the oldest members of the Clevite 77 performance bearing family. They're intended for high-revving engines, especially those where the high rpm cause the rod bores to narrow. To compensate for this distortion, these direct replacements have higher eccentricity and a high crush factor. Clevite P-Series rod bearings are built on hardened-steel backings with extra-thin overlays, and their lower sections have dowel holes for use with aluminum rods, and there are extra-clearance variations available with an additional 0.001 in. of clearance. Order the model designed for your vehicle and engine application.
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$95.99
Engine Works rod bearing sets are quality bearing sets available in various series and clearances. Offered in bi-metal or Alecular tri-metal construction, these rod bearing sets also come in a variety of clearance options from standard through .030 in., with a .001 in. X-clearance available on some sets. When you want high-quality and high-value parts for your performance vehicle, Engine Works delivers. Check availability and order the set recommended for your ride.
Not Yet Reviewed
$73.71
King XPG-Series main bearings feature a unique lug design that eliminates the conventional lug recess, so no oil escapes and full oil pressure is maintained. In addition, narrowed bearing lengths help eliminate dangerous fillet ride on high-radius cranks. With enhanced tri-metal copper/lead construction and nickel barrier, plus SecureBond adhesion, King XPG-Series main bearings have a 20 percent higher load capacity and better resist surface fatigue. For superior engine components, choose King.
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$69.99
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$78.99
King SI-Series main bearings are recommended for OE applications. These replacement bearings are designed for aftermarket gasoline or diesel engine rebuilding—and performance engines with factory crankshafts. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI-Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow. Order the bearing set designed for fitment on your make and model.
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$53.99
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$108.99
Summit Racing™ offers Race Series main bearing sets for a wide range of applications—including many Chevrolet, Ford, Chrysler, Dodge, Jeep, Ram small block, big block, and Hemi engines from the early 1960s and up. Main bearings hold the crankshaft in place and allow it to rotate within the engine block. These performance replacements are machined from tri-metal copper-lead alloy, and are available in numerous upper/lower groove styles and engine crankshaft undersize options. Order the set recommended for your vehicle.
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$51.99
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$99.99
Built with enhanced tri-metal, King XP-Series main bearings have a layered copper lead construction, with a nickel plate barrier and lead/tin/copper Babbitt overlay over a steel backing--in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors: an amazing +/- .0001 in. The XP-Series main bearings are narrowed for large radii crankshafts and feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. They deliver consistent and reliable performance with a high-load capacity. These race-only Xtreme Performance (XP-Series) Tri-Lecular main bearings are proven track-tough to handle the ground-shaking power of your race engine. Hundreds of sets are available; order the bearings recommended for your vehicle.
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$83.99
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$98.99
Considering an LS engine swap? TCI pilot extension adapters will help to make the fit a perfect match. Simply bolting the old-style converter to your LS engine will not work without the proper spacer. TCI spacers will create the required distance, so the nose of the torque converter fits properly with the crankshaft.
Not Yet Reviewed
$52.95
King introduces the new solution for the aftermarket demand of superior service life and performance in modern engines. The King MC-Series rod bearings were engineered in the wake of ongoing internal combustion engine development—resulting in ever-decreasing minimum oil film thickness values; higher cylinder pressures, temperatures and loads; smaller load carrying bearing surfaces; and lighter components. Additionally, "start/stop" technology produces more frequent mixed lubrication and metal-to-metal contact conditions. The new King MC-Series rod bearings feature a nano-composite polymer coating, known as K-340. It's designed for applying over relatively hard substrates: bronze, aluminum alloys, sputter overlay, and King silver overlay. These bi-metal silicone aluminum sets are available in different sizes for fitment on countless car and truck applications.
Not Yet Reviewed
$66.99
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$91.99
King SV-Series rod bearings provide movement with minimal power loss. Connecting rod bearings provide rotating motion of the crank pin within the connecting rod, which transmits cycling loads applied to the piston, and King SV-Series will provide this function well to handle your extreme load engines. These King SV-Series connecting rod bearings are copper-based and lead-free, offering great wear resistance, as well as load capacity.
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$97.99
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$114.99
King XPG-Series coated rod bearings feature a unique lug design that eliminates the conventional lug recess, so no oil escapes and full oil pressure is maintained. With enhanced tri-metal copper/lead construction and nickel barrier, plus SecureBond adhesion, King XPG-Series coated rod bearings have a 20 percent higher load capacity—and better resist surface fatigue. They also feature King's factory-applied pMaxKote nano-composite coating that takes protection to the next level without adding any additional thickness! These replacement sets are available in different sizes for a variety of applications. For superior engine components, choose King.
Not Yet Reviewed
$81.99
King CP-Series main bearings are direct replacements for your vehicle. Stronger and more forgiving, these OEM replacement main bearings feature tri-metal construction with a copper/lead material on steel with a .001 in. copper/lead/tin overplate. These main bearings are available half-grooved or full-grooved to fill your oiling preference. Replace those worn bearings before you ruin your crank. Choose bearings that you know will fit right and provide miles of service—CP-Series main bearings from King.
Not Yet Reviewed
$86.99
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$101.99
Give your engine the winning edge with King XP-Series coated main bearings. Built off the revolutionary XP-Series tri-metal construction, King's factory-applied pMaxKote™ nano-composite coating takes protection to the next level without adding any additional thickness! Order the replacement main bearings designed for fitment with your engine. pMaxKote™ provides: * Superior seizure resistance * Superior cavitation resistance * Superior wear resistance * Superior protection against oil starvation
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$85.99
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$104.99
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