1973 Engines & Components

Piston, Hypereutectic, Step, 4.382 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Each

Part Number: UEM-SKB251-040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Piston, Hypereutectic, Dome, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB180-040

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Piston, Hypereutectic, Dish, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Each

Part Number: UEM-SKB181-060

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

Part Number: UEM-SKB121-030

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Piston, Hypereutectic, Dome, 4.060 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB123-060

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Piston, Hypereutectic, Dish, 4.145 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB130-020

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Piston, Hypereutectic, Flat, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB134-030

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Piston, Hypereutectic, Dome, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Each

Part Number: UEM-SKB136-040

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Piston, Hypereutectic, Flat, 4.380 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Each

Part Number: UEM-SKB137-020

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Piston, Hypereutectic, Dish, 4.380 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Each

Part Number: UEM-SKB138-020

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Piston, Hypereutectic, Dish, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB142-060

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Piston, Hypereutectic, Flat, 4.165 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB139-040

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Piston, Hypereutectic, Dome, 4.165 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB140-040

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Piston, Hypereutectic, Flat, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Each

Part Number: UEM-SKB151-030

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Piston, Hypereutectic, Flat, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Each

Part Number: UEM-SKB151-060

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Piston, Hypereutectic, Dish, 4.400 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Each

Part Number: UEM-SKB152-040

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Piston, Hypereutectic, Dome, 4.280 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Each

Part Number: UEM-SKB203-030

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Pistons, Premium, Forged 2618 Aluminum, 4.165 in. Bore, 3.750 in. Stroke, Dome, Left Side, Chevy, Small Block, Each

Part Number: UEM-SIC640L-040

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Pistons, Premium, Forged 2618 Aluminum, 4.125 in. Bore, 3.400 in. Stroke, Dome, Ford, Small Block, Each

Part Number: UEM-SIC617-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.165 in. Bore, 3.750 in. Stroke, Dome, Right Side, Chevy, Small Block, Each

Part Number: UEM-SIC640R-040

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Pistons, Premium, Forged 2618 Aluminum, 4.000 in. Bore, 3.625 in. Stroke, Dome, Left Side, Chevy, Small Block, Each

Part Number: UEM-SIC606L-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.125 in. Bore, 3.750 in. Stroke, Dome, Right Side, Chevy, Small Block, Each

Part Number: UEM-SIC609R-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.040 in. Bore, 3.562 in. Stroke, Dome, Right Side, Chevy, Small Block, Each

Part Number: UEM-SIC605R-040

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Pistons, Premium, Forged 2618 Aluminum, 4.125 in. Bore, 3.625 in. Stroke, Dome, Right Side, Chevy, Small Block, Each

Part Number: UEM-SIC608R-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.165 in. Bore, 3.400 in. Stroke, Dome, Ford, Small Block, Each

Part Number: UEM-SIC617-060

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