Availability
1978 Main Bearings
Main Bearings, Direct Replacement, .010 in. Crankshaft Undersize, TM-77, AMC, Jeep, 1964 to 1990, L6, Set of 7
Part Number: CLE-MS704P10
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Race Series Main Bearing Sets, 0.009 in. Crankshaft Undersize, Tri-metal Copper-lead Alloy, Ford, Small Block Windsor 302, Set of 5
Part Number: SUM-590H009
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, SI-Series, Full Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Jeep, Mopar, Set of 5
Part Number: KGB-MB5534SI020
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearing, Nissan L Series 1967-86, Z-Car 2.0,2.8L .001 Undersize, Set
Part Number: SUM-1172H1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, HP-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Chevy, 400, Set of 5
Part Number: KGB-MB509HP020
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Race Series Main Bearing Sets, 0.011 in. Crankshaft Undersize, Tri-metal Copper-lead Alloy, Chevrolet, Big Block, Set of 5
Part Number: SUM-829H011
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Competition, 0.001 in. Crankshaft Undersize, Tri Metal, 3/4 Groove, Chevy, 302, 305, 350, Set of 5
Part Number: SLP-139M1
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, 0.020 in. Crankshaft Undersize, Tri Metal, Full Groove, Chrysler, Dodge, B Big Block, 383, 400, Set of 5
Part Number: SLP-4094M20
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, 1/2 Groove, .040 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5
Part Number: KGB-MB557SI040
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, P Series, 1/2 Groove, Standard Size, Tri Metal, Ford, 429-460, Set of 5
Part Number: CLE-MS1039P
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Duraglide, P-Series, Grooved, Tri-Metal, Copper/Lead Alloy, Stock Size Crankshaft, Chevy, 6.5L, 6.6L, 7.0L, 7.4L, Set of 5
Part Number: PEB-5M829P-STD
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Summit Precision High-Tensile Tri-Metal Alloy COATED Racing Main Bearings, SBC 350 Main Standard Clearance, Half-Upper groove, set
Part Number: SUM-909HCS
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Big Block, Set of 5
Part Number: KGB-MB556SI030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, H Series, Full Groove, Standard Size, Tri Metal, Ford, 351M, 351W, 400, Set of 5
Part Number: CLE-MS981H
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Race Series Main Bearing Sets, Stock Crankshaft Size, Tri-metal Copper-lead Alloy, Chevrolet, Big Block, Set of 5
Part Number: SUM-829HS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, 0.030 in. Crankshaft Undersize, Tri Metal, 1/2 Groove, Ford, 351W, 351M, 400, Set of 5
Part Number: SLP-5078M30
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearing Set, 0.001 in. Crankshaft Undersize, Super Duty Alloy, H-14, 3/4 Groove, Even-Fire, Buick, Chevy, V6, 3.8L, Set of 4
Part Number: SLP-107M1
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 5
Part Number: KGB-MB529SI020
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, P Series, 1/2 Groove, .010 in. Crankshaft Undersize, Tri Metal, Oldsmobile, 260, 307, 330, 350, 403, Set 5
Part Number: CLE-MS805P10
Estimated Ship Date: Today
Estimated Ship Date: Today
Summit Precision High-Tensile Tri-Metal Alloy Racing Main Bearings, SBC 400 .001 Extra Clearance, 3/4 Upper and Lower groove, set
Part Number: SUM-1038HXS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, HP-Series, 1/2 Groove, .010 in. Crankshaft Undersize, Bi Metal, Mopar, 426, 440, 426 Hemi, Set of 5
Part Number: KGB-MB5116HP010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, HP-Series, 1/2 Groove, 0.010 in. Crankshaft Undersize, Bi Metal, Chrysler, Dodge, Plymouth, Big Block, Set of 5
Part Number: KGB-MB555HP010
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, Competition Series, 0.010 Crankshaft Undersize, Tri Metal, 3/4 Groove, Ford, 260, 289, 302, Set of 5
Part Number: SLP-129M10
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearing, Performance Series, .020 in. Crankshaft Undersize, Tri-metal copper-lead nickel, Dodge, Plymouth, Small Block, Each
Part Number: KGB-MB558XPC020
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5
Part Number: KGB-MB5570SI010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster