Pistons - 102.616mm Bore (mm) - Flat top, with two valve reliefs Piston Style - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Speed-Pro Hypereutectic Pistons H860CP40

Pistons, Hypereutectic, Flat, 4.040 in. Bore, 3.75 in. Stroke, Chevy, Set of 8

Part Number: SLP-H860CP40

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Summit Racing™ Forged Pro Pistons SUM-SBF347040

Forged Pro pistons 347 stroker Windsor, 4.040 bore, 1.090 C.H., 3.4 in. stroke, 5.400 rod, 5cc flat top Inline and Twisted Wedge, 10.5@60cc, 10:1@64cc

Part Number: SUM-SBF347040

Not Yet Reviewed

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Speed-Pro Hypereutectic Pistons H631CP40

Pistons, Hypereutectic, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: SLP-H631CP40

3.0 out of 5 stars ( 2 )

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Wiseco Pro Tru Street Pistons PTS503A4

Wiseco Pro Tru Street Pistons PTS503A4

Pistons, Pro Tru Street Pistons, 4.040 in. Bore, Forged, Flat Top, 1/16 in., 1/16 in., 3/16 in. Rings, Chevrolet, Kit

Part Number: WIS-PTS503A4

Not Yet Reviewed

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Mahle PowerPak Piston and Ring Kits 930244740

Piston and Ring Kit, Forged, 4.040 in. Bore, Ford, Kit

Part Number: MLE-930244740

Not Yet Reviewed

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KB Performance Pistons KB107.040

Pistons, Hypereutectic, Flat, 4.040 in. Bore, Chrysler, Dodge, Plymouth, Set of 8

Part Number: UEM-KB107-040

Not Yet Reviewed

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KB Performance Pistons KB246.040

Pistons, Hypereutectic, Flat, 4.040 in. Bore, Ford, Set of 8

Part Number: UEM-KB246-040

Not Yet Reviewed

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KB Performance Claimer Pistons 9902HC.040

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

Part Number: UEM-9902HC-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Speed-Pro Hypereutectic Pistons H660CP40

Pistons, Hypereutectic, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: SLP-H660CP40

Not Yet Reviewed

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KB Performance Hyper Piston and Ring Kits KB107KTM.040

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

Part Number: UEM-KB107KTM-040

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Mahle PowerPak Piston and Ring Kits 930206640

Piston and Ring Kit, Forged, 4.040 in. Bore, Chevy, Kit

Part Number: MLE-930206640

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Mahle PowerPak Plus Piston and Ring Kits 930245140

Pistons, PowerPak Plus, Forged 2618 Aluminum, 4.040 in. Bore, Flat Top, Rings Included, Ford, Small Block, Set of 8

Part Number: MLE-930245140

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Wiseco Pro Tru Street Pistons PTS506A4

Piston, Pro Tru Street Series, 23 Degree Head, 4.040 in. Bore, Forged Aluminum, Chevrolet, 350, Set of 8

Part Number: WIS-PTS506A4

Not Yet Reviewed

Estimated Ship Date: Oct 15, 2025 if ordered today

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Estimated Ship Date: Oct 15, 2025 if ordered today

RaceTec AutoTec Forged Pistons 1000342

Pistons, Forged, 4.040 in. Bore, 3.250 in. Stroke, Flat Top, 5.400 in. Rod Length, 0.927 in. Pin Diameter, SBF 302 20 degree, Ford, Set of 8

Part Number: PIS-1000342

Not Yet Reviewed

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KB Performance Hyper Piston and Ring Kits KB156KTM.040

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

Part Number: UEM-KB156KTM-040

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-2020-4040

Piston Set, 302 SBC K2-FX Series -5cc Flat Top Piston Set. 4.040 bore

Part Number: DMS-K2-2020-4040

Not Yet Reviewed

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

KB Performance Pistons KB115.040

Pistons, Hypereutectic, Flat, 4.040 in. Bore, Ford, Set of 8

Part Number: UEM-KB115-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

KB Performance Claimer Pistons 9909HC.040

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-9909HC-040

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

Speed-Pro Forged Pistons L2379F40

Pistons, Forged, Flat, 4.040 in. Bore, Ford, Cleveland, Set of 8

Part Number: SLP-L2379F40

Not Yet Reviewed

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KB Performance Claimer Pistons 9906HC.040

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

Part Number: UEM-9906HC-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

ICON FHR Series Piston and Ring Kits IC9931KTM.040

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

Part Number: UEM-IC9931KTM040

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

KB Performance Claimer Piston and Ring Kits 9902HCKTM.040

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

Part Number: UEM-9902HCKTM040

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

KB Performance Pistons KB120.040

Pistons, Hypereutectic, Flat, 4.040 in. Bore, Chevy, Set of 8

Part Number: UEM-KB120-040

Not Yet Reviewed

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KB Performance Hyper Piston and Ring Kits KB106KTM.040

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

Part Number: UEM-KB106KTM-040

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today

ICON Premium Forged Piston and Ring Kits IC744KTD.040

Piston and Ring Kit, Forged, Flat, 4.040 in. Bore, Mopar, Small Block, Kit

Part Number: UEM-IC744KTD-040

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

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Estimated Ship Date: Oct 27, 2025 if ordered today