KB Performance Piston Parts and Accessories

Pistons, Hypereutectic, Flat, 4.400 in. Bore, Ford, Set of 8

Part Number: UEM-KB368-040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Pistons, Hypereutectic, Quench Head 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB373-060

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Pistons, Hypereutectic, Quench Head 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB373-STD

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Piston and Ring Kit, Hypereutectic, Dome, 4.000 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-KB373KTM-STD

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Pistons, Hypereutectic, Dome, 4.145 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB375-020

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

Part Number: UEM-KB375-030

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

Part Number: UEM-KB375-040

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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-KB375-STD

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

Part Number: UEM-KB375KTD-020

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

Part Number: UEM-KB375KTD-040

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Piston and Ring Kit, Hypereutectic, Dome, 4.185 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB375KTD-060

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Pistons, Hypereutectic, Step, 4.566 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB389-100

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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-KB397-100

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Piston and Ring Kit, Hypereutectic, Dome, 4.350 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB397KTD-100

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Piston and Ring Kit, Hypereutectic, Dome, 4.290 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB398KTD-040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Pistons, Hypereutectic, Dome, 3.930 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB399-020

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Pistons, Hypereutectic, Dome, 3.910 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB399-STD

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Pistons, Hypereutectic, Step, 4.400 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB402-040

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Piston and Ring Kit, Hypereutectic, Step Dish, 4.400 in. Bore, Ford, Big Block, Kit

Part Number: UEM-KB402KTD-040

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Pistons, Hypereutectic, Dish, 4.390 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB403-030

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Pistons, Hypereutectic, Dish, 4.400 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB403-040

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Pistons, Hypereutectic, Dish, 4.420 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB403-060

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Piston and Ring Kit, Hypereutectic, Dish, 4.420 in. Bore, Ford, Big Block, Kit

Part Number: UEM-KB403KTD-060

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

Part Number: UEM-KB332-040

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Piston and Ring Kit, Hypereutectic, Dome, 4.020 in. Bore, Ford, Small Block, Kit

Part Number: UEM-KB332KTD-020

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