Availability
1978 Main Bearings
Main Bearings, 0.010 in. Crankshaft Undersize, Tri Metal, Ford, L6, 4.9L, Set of 7
Part Number: SLP-4916M10
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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, MA Series, 0.020 in. Crankshaft Undersize, Bi Metal, 1/2 Groove, Ford, Lincoln, Mercury, V8, 221, 260, 289, 302, Set of 5
Part Number: SLP-4125MA20
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, SI-Series, 1/2 Groove, Bi-metal, Silicon Aluminum, Chyrsler, Big Block, Set of 5
Part Number: KGB-MB5116SI
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, XP-Series, 1/2 Groove, Standard Size, Tri Metal, Pontiac V8, Set of 5
Part Number: KGB-MB5511XPSTDX
Estimated Ship Date: Today
Estimated Ship Date: Today
Summit Precision High-Tensile Tri-Metal Alloy COATED Racing Main Bearings, SBC 350 Main .010 undersize (thicker), Half-Upper groove, set
Part Number: SUM-909HC010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearing, Performance Series, .010 in. Crankshaft Undersize, Tri-metal copper-lead nickel, Dodge, Plymouth, Small Block, Each
Part Number: KGB-MB558XPC010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, SI-Series, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Aluminum Silicon, Jeep, Chrysler, Set of 5
Part Number: KGB-MB517SI010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: 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, Race Series Main Bearing Sets, 0.001 in. Crankshaft Undersize, Tri-metal Copper-lead Alloy, Chevrolet, Big Block, Set of 5
Part Number: SUM-829HXS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Summit Precision High-Tensile Tri-Metal Alloy Racing Main Bearings, 351 Windsor .001 Extra Clearance, 3/4 Upper and Lower groove, set
Part Number: SUM-1432HXS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, .001 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5
Part Number: SLP-4663M1
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
Main Bearing Set-.020 OS HOUSING / .040 OS LENGTH FLANGE VW AIR COOLED
Part Number: CLE-MS943A
Not Yet Reviewed
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
Crankshaft Main Bearings set, Honda H22 50mm journal
Part Number: KGB-MB5168XP
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Direct Replacement, .020 in. Crankshaft Undersize, TM-77, AMC, Jeep, 1964 to 1990, L6, Set of 7
Part Number: CLE-MS704P20
Estimated Ship Date: Today
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearing, XP-Series, Copper/Lead/Nickel, 0.011 in. Crankshaft Undersize, Chevy, Small Block, Set of 5
Part Number: KGB-MB557XP011
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, XP-Series, 1/2 Groove, Standard Size, Tri Metal, Pontiac V8, Set of 5
Part Number: KGB-MB5511XP
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Main Bearings, P Series, 1/2 Groove, 0.010 in. Crankshaft Undersize, TM-77, Chevy, GMC, 194, 230, 250, 292, Set
Part Number: CLE-MS617P10
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Aluglide, A-Series, Grooved, Bi-Metal, Aluminum/Tin/Silicon, Stock Size Crank, Chevy, Excalibur, 6.5L, 6.6L, 7.0L, 7.4L, Set of 5
Part Number: PEB-5M829A-STD
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, Ford, Lincoln, Mercury, Set of 5
Part Number: KGB-MB529XPSTDX
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Bearing, HP-Series, Silicon Aluminum, 0.001 in. Crankshaft Undersize, Ford, 429, 460, Set of 5
Part Number: KGB-MB5650HP001
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Race Series Main Bearing Sets, 0.001 in. Crankshaft Undersize, Tri-metal Copper-lead Alloy, Ford, Small Block Windsor 302, Set of 5
Part Number: SUM-590HXCS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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