Pistons - Flat top, with two valve reliefs Piston Style - 1.535 in. Compression Height (in.) - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-3870-4000

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-3870-4000

Piston Set, Boss 302 SBF 289 - 302 3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-3-3870-4000

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-3870-4030

Piston Set, Boss 302 SBF 289 - 302 3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore

Part Number: DMS-3-3870-4030

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-3870-4040

Piston Set, Boss 302 SBF 289 - 302 3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-3-3870-4040

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-3870-4060

Piston Set, Boss 302 SBF 289 - 302 3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-3-3870-4060

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged Piston and Ring Kits K1-3870-4000

Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-K1-3870-4000

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-3870-4030

Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore

Part Number: DMS-K1-3870-4030

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-3870-4040

PISTONS

Part Number: DMS-K1-3870-4040

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-3870-4060

Piston Set, Boss 302 SBF 289 - 302 K1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-K1-3870-4060

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3870-4000

Piston Set, Boss 302 SBF 289 - 302 K2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-K2-3870-4000

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3870-4030

Piston Set, Boss 302 SBF 289 - 302 K2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore

Part Number: DMS-K2-3870-4030

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3870-4040

Piston Set, Boss 302 SBF 289 - 302 K2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-K2-3870-4040

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-3870-4060

Piston Set, Boss 302 SBF 289 - 302 K2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-K2-3870-4060

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-3870-4000

Piston Set, Boss 302 SBF 289 - 302 2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-2-3870-4000

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-3870-4030

Piston Set, Boss 302 SBF 289 - 302 2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore

Part Number: DMS-2-3870-4030

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-3870-4040

Piston Set, Boss 302 SBF 289 - 302 2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-2-3870-4040

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons 2-3870-4060

Piston Set, Boss 302 SBF 289 - 302 2-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-2-3870-4060

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-3870-4000

Piston Set, Boss 302 SBF 289 - 302 1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-1-3870-4000

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-3870-4030

Piston Set, Boss 302 SBF 289 - 302 1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore

Part Number: DMS-1-3870-4030

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-3870-4040

Piston Set, Boss 302 SBF 289 - 302 1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-1-3870-4040

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Pistons 1-3870-4060

Piston Set, Boss 302 SBF 289 - 302 1-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-1-3870-4060

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-3870-4000

Piston Set, Boss 302 SBF 289 - 302 K3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.000 bore

Part Number: DMS-K3-3870-4000

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-3870-4030

Piston Set, Boss 302 SBF 289 - 302 K3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.030 bore

Part Number: DMS-K3-3870-4030

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-3870-4040

Piston Set, Boss 302 SBF 289 - 302 K3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.040 bore

Part Number: DMS-K3-3870-4040

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits with XR Wrist Pins K3-3870-4060

Piston Set, Boss 302 SBF 289 - 302 K3-FX Series -3cc Flat Top Boss/Canted Piston Set. 4.060 bore

Part Number: DMS-K3-3870-4060

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today