Pistons - 4.040 in. Bore (in.) - 1.50mm x 1.50mm x 3.00mm Piston Ring Thickness - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Forged Pro Pistons SUM-SBC327040

Summit Racing™ Forged Pro Pistons SUM-SBC327040

Forged Pro pistons for SB Chevy 327, 4.040 bore, 1.671 C.H., 3.25 in. stroke, 5.7 in. rod, 0cc net vol. dome. 11:1@58cc, 10.2@64cc, 9.8@67cc, 9.3@72cc

Part Number: SUM-SBC327040

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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

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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

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Summit Racing™ Forged Pro Pistons SUM-SBC383040L

Forged Pro pistons for 383 Stroker Chevy Long Rod, 4.040 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 9cc reverse dome 10.5@64cc, 10.1@67cc, 9.7@72cc

Part Number: SUM-SBC383040L

5.0 out of 5 stars ( 1 )

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Summit Racing™ Forged Pro Pistons SUM-SBC302040

Forged Pro pistons for SB Chevy 302, 4.040 bore, 1.800 C.H., 3 in. stroke, 5.7 in. rod, 5cc dome 11:1@58cc, 10.2:1@64cc, 9.8:1@67cc, 9.3:1@72cc.

Part Number: SUM-SBC302040

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ICON Premium Forged Piston and Ring Kits IC978KTD.040

Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.040 in. Bore, 3.875 in. Stroke, Flat Top, Chevy, Small Block, Set of 8

Part Number: UEM-IC978KTD-040

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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. E Series Forged Pistons 8785-4040

Piston Set, 6.0 / LS2 / L98 / LQ9 LS E Series -5cc LS Flat Top Piston Set. 4.040 bore

Part Number: DMS-8785-4040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

Mahle PowerPak Piston Kits 930203840

Piston and Ring Kit, PowerPak, USRA Factory Stock Rule, 4.040 in. Bore, 3.500 in. Stroke, 5.700 in. Rod, Flat Top, Forged, Chevrolet, Small Block, Kit

Part Number: MLE-930203840

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

D.S.S. SX-Series Forged Piston and Ring Kits K1923-4040

Pistons, Rings, SX-Series, Forged, 15.00cc Dish, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1923-4040

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Estimated Ship Date: Oct 7, 2025 if ordered today

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RaceTec AutoTec Forged Pistons 1000411

Pistons, Forged, 4.040 in. Bore, 3.400 in. Stroke, Dish Top, 5.400 in. Rod Length, 0.927 in. Pin Diameter, SBF 302/351W, Ford, Set of 8

Part Number: PIS-1000411

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RaceTec AutoTec Forged Pistons 1000404

Pistons, Forged, 4.040 in. Bore, 3.250 in. Stroke, Dish Top, 5.400 in. Rod Length, 0.927 in. Pin Diameter, SBF 302/351W, Ford, Set of 8

Part Number: PIS-1000404

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D.S.S. SX-Series Forged Piston and Ring Kits K1930-4040

Pistons, Rings, SX-Series, Forged, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1930-4040

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D.S.S. SX-Series Forged Piston and Ring Kits K1920-4040

Pistons, Rings, SX-Series, Forged, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1920-4040

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Estimated Ship Date: Oct 7, 2025 if ordered today

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RaceTec AutoTec Forged Pistons 1000521

Piston, Flat Top, 4.040 in. Bore, 4.000 in. Stroke, 6.000 in. Rod Length, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Ford Small Block, Set of 8.

Part Number: PIS-1000521

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RaceTec AutoTec Forged Pistons 1000464

Pistons, Forged, 4.040 in. Bore, 4.000 in. Stroke, Flat Top, 6.200 in. Rod Length, 0.927 in. Pin Diameter, SBF, 351W 20 degree, Ford, Set of 8

Part Number: PIS-1000464

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Summit Racing™ Forged Pro Pistons SUM-SBC350040

Forged Pro pistons for SB Chevy 350, 4.040 bore, 1.560 C.H., 3.48 in. stroke, 5.7 in. rod, 5cc flat top 11:1@58cc, 10.2@64cc, 9.9@67cc, 9.4@72cc.

Part Number: SUM-SBC350040

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D.S.S. SX-Series Forged Pistons 1920-4040

Pistons, SX-Series, Forged, 5.00cc Flat, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-1920-4040

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Estimated Ship Date: Oct 7, 2025 if ordered today

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Estimated Ship Date: Oct 7, 2025 if ordered today

D.S.S. E Series Forged Pistons 8795-4040

Piston Set, 6.0 / LS2 / L98 / LQ9 Stroker LS E Series -5cc LS Flat Top Piston Set. 4.040 bore

Part Number: DMS-8795-4040

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Silv-O-Lite Hypereutectic Pistons 3470HC.040

Pistons, Hypereutectic, Dish, 4.040 in. Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, Set of 8

Part Number: UEM-3470HC-040

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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. SX-Series Forged Piston and Ring Kits K1823-4040

Pistons, Rings, SX-Series, Forged, 15.00cc Dish, 4.040 in. Bore, Chevy LS, Set of 8

Part Number: DMS-K1823-4040

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RaceTec Race Pistons 1001020

Piston, Flat Top, 4.040 in. Bore, 3.500 in. Stroke, 6.125 in. Rod Length, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy Small Block, Set of 8.

Part Number: PIS-1001020

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RaceTec AutoTec Forged Pistons 1000104

Piston, Flat Top, 4.040 in. Bore, 3.480 in. Stroke, 5.700 in. Rod Length, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy Small Block, Set of 8.

Part Number: PIS-1000104

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RaceTec AutoTec Forged Pistons 1000116

Piston, Flat Top, 4.040 in. Bore, 3.480 in. Stroke, 6.125 in. Rod Length, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy Small Block, Set of 8.

Part Number: PIS-1000116

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RaceTec AutoTec Forged Pistons 1000350

Pistons, Forged, 4.040 in. Bore, 3.400 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-1000350

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RaceTec AutoTec Forged Pistons 1000517

Pistons, AutoTec SBF, 4.04, 3.75, Flat Top 6.125, 0.927, SBF 351 Cleveland, Sold as a set of 8.

Part Number: PIS-1000517

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