KB Engines & Components

Pistons, Hypereutectic, Flat, 4.145 in. Bore, Chevy, Set of 8

Part Number: UEM-KB139-020

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Pistons, Hypereutectic, Flat, 4.155 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB139-030

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Pistons, Hypereutectic, Flat, 4.165 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB139-040

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Pistons, Hypereutectic, Flat, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB139-STD

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Piston and Ring Kit, Hypereutectic, Flat, 4.145 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB139KTM-020

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Piston and Ring Kit, Hypereutectic, Flat, 4.155 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB139KTM-030

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Pistons, Hypereutectic, Flat, 4.020 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB100-020

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Pistons, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Set of 8

Part Number: UEM-KB100-030

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Pistons, Hypereutectic, Flat, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB100-040

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Pistons, Hypereutectic, Flat, 4.060 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB100-060

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Piston and Ring Kit, Hypereutectic, Flat, 4.020 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB100KTD-020

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Piston and Ring Kit, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB100KTD-030

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Estimated Ship Date: Mar 12, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, Flat, 4.020 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB100KTM-020

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Piston and Ring Kit, Hypereutectic, Flat, 4.030 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB100KTM-030

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Pistons, Hypereutectic, Dish, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB101-040

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Pistons, Hypereutectic, Dish, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB101-STD

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AMC/JEEP 4.0 L6 Stroker - 4.6 w/258" Crank 8.9:1 + .010" CH

Part Number: UEM-KB10177-030

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Engine Piston Set

Part Number: UEM-KB10177-040

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AMC/JEEP 4.0 L6 Stroker - 4.6 w/258" Crank 8.9:1 + .010" CH

Part Number: UEM-KB10177-060

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AMC/JEEP 4.0 L6 Stroker - 4.6 w/258" Crank 8.9:1 + .010" CH

Part Number: UEM-KB10177-STD

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AMC/JEEP 4.0 L6 Stroker - 4.6 w/258" Crank 8.9:1 + .010" CH

Part Number: UEM-KB10177STDK1

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Engine Piston Kit

Part Number: UEM-KB10179040K1

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Piston and Ring Kit, Hypereutectic, Flat, 4.040 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB112KTM-040

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Pistons, Hypereutectic, Dome, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB113-030

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Pistons, Hypereutectic, Dome, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB113-040

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