KB Pistons & Piston Rings

Pistons, KB Performance, 4.000 in. Bore, Step, 1.465 in. Compression Height, Press/Float Pin, 5/64 x 5/64 x 3/16 Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB416-STD

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Estimated Ship Date: Nov 28, 2025 if ordered today

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Piston and Ring Kit, Hypereutectic, Flat, 4.060 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB253KTD-060

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Piston and Ring Kit, Hypereutectic, Dish, 4.040 in. Bore, Ford, Small Block, Kit

Part Number: UEM-KB319KTD-040

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Piston & Ring Set, 1 Set 9908HC.060/1 Set 4000AM8.060

Part Number: UEM-S00261

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Piston, Hypereutectic, Flat, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB106-030

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Piston and Ring Kit, Hypereutectic, Dome, 4.060 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB111KTD-060

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Piston and Ring Kit, Hypereutectic, Dish, 4.000 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB121KTD-STD

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

Part Number: UEM-KB122-030

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

Part Number: UEM-KB122KTD-030

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

Part Number: UEM-KB129KTD-030

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

Part Number: UEM-KB139KTD-030

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Piston and Ring Kit, Hypereutectic, Flat, 4.165 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB139KTD-040

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Estimated Ship Date: Nov 26, 2025 if ordered today

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

Part Number: UEM-KB140-STD

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Piston and Ring Kit, Hypereutectic, Dome, 4.125 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB140KTD-STD

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Piston and Ring Kit, Hypereutectic, Dome, 4.125 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB140KTM-STD

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Estimated Ship Date: Nov 26, 2025 if ordered today

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Pistons, Hypereutectic, Flat, 4.290 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB202-040

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Pistons, Hypereutectic, Flat, 4.350 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB202-100

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Piston and Ring Kit, Hypereutectic, Flat, 4.310 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB202KTM-060

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Piston and Ring Kit, Hypereutectic, Flat, 4.250 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB202KTM-STD

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Piston and Ring Kit, Hypereutectic, Dome, 4.320 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB203KTM-070

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Pistons, Hypereutectic, Dish, 4.390 in. Bore, Ford, Lincoln, Mercury, Set of 8

Part Number: UEM-KB206-030

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Pistons, Hypereutectic, Dish, 4.360 in. Bore, Ford, Set of 8

Part Number: UEM-KB206-STD

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Pistons, Hypereutectic, Dome, 4.280 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB207-030

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Pistons, Hypereutectic, Dome, 4.350 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB207-100

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Piston, Hypereutectic, Dome, 4.320 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring, Chevy, Big Block, Set of 8

Part Number: UEM-KB207070

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