KB Pistons & Piston Rings

Pistons, Hypereutectic, Dome, 4.320 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB397-070

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

Part Number: UEM-KB397KTD-040

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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, 4.250 in. Bore, Chevy, Big Block, Kit

Part Number: UEM-KB397KTD-STD

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Pistons, Hypereutectic, Dome, 4.290 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB398-040

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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-KB398-100

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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: Sep 30, 2025 if ordered today

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

Part Number: UEM-KB398KTD-100

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

Part Number: UEM-KB398KTD-STD

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

Part Number: UEM-KB361KTM-040

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Pistons, Hypereutectic, Dish, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB362-020

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Pistons, Hypereutectic, Step, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB362-040

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

Part Number: UEM-KB362-060

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

Part Number: UEM-KB362KTM-040

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Piston and Ring Kit, Hypereutectic, Step Dish, 4.060 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-KB362KTM-060

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Pistons, Hypereutectic, Flat, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB289-040

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PISTON SET OF 8

Part Number: UEM-KB289-STD

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Piston and Ring Kit, Hypereutectic, Flat, 4.030 in. Bore, Chrysler, Hemi, Kit

Part Number: UEM-KB289KTM-030

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Piston and Ring Kit, Hypereutectic, Flat, 4.040 in. Bore, Chrysler, Hemi, Kit

Part Number: UEM-KB289KTM-040

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

Part Number: UEM-KB365-020

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Pistons, Hypereutectic, Dome, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB290-040

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Pistons, Hypereutectic, Step Head, AMC, Set of 8

Part Number: UEM-KB420-040

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Pistons, KB Performance, 4.195 in. Bore, Step, 1.510 in. Compression Height, Press/Float Pin, 5/64 x 5/64 x 3/16 Ring Grooves, AMC, Set of 8

Part Number: UEM-KB420030

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Piston & Ring Set, 1 Set KB420.040/1 Set 4165BD8.045

Part Number: UEM-KB420KTD040

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