Availability
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Pro LS 2618 Forged Piston, 3.898 bore, 1.326 C.H., 3cc mini dome, Std. Stroke, Gen. 3 Press-fit Rod, NA/Boost/Nitrous, Coated, 5.7L LS1 LS6, Set of 8
Part Number: SUM-3269453898-3
Estimated Ship Date: Today
Estimated Ship Date: Today
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Replacement Piston and Components: If not in stock, order MUST be placed to trigger singles. Average ETA of 3 business days if kits are in stock
Part Number: SUM-326S453898-3
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, FHR Coated, Forged 4032 Aluminum, Flat Top with Two Reliefs, 3.898 in. Bore, 0.945 in. Wrist Pin, GM, LS, 5.7L, Set
Part Number: UEM-IC9988C-STD
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 3.898 in. Bore, Chevy, Pontiac, LS, Set of 8
Part Number: SLP-H868CP
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 99mm Bore, Coated Skirts, Offset Pin, Shallow Oil Ring Groove, Cadillac, Chevy, 5.7L, LS6, Set of 8
Part Number: UEM-3499HC-25MM
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Rings, FX-Series, Forged 4032, 6.00cc Dome, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-K1-2812-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, Premium, Forged 2618 Aluminum, 3.898 in. Bore, 3.622 in. Stroke, Flat Top, Chevy, LS, Set of 8
Part Number: UEM-IC521CA-STD
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Pistons, Rings, SX-Series, Forged, 5.00cc Flat, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-K1810-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Piston, Forged, Flat Top, 2-Valve Reliefs, 3.898 in. Bore, 3.622 in. Stroke, 6.098 in. Rod, 1.340 in. Compression, Chevy, Left, Each
Part Number: JEP-321239L
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, FX-Series, XR Wrist Pins, Forged, 15.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-3-2913-3898
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Premium, Forged 2618 Aluminum, 3.898 in. Bore, 3.622 in. Stroke, Dish, Chevy, LS, Set of 8
Part Number: UEM-IC524CA-STD
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Piston and Ring Kits, Premium, Forged Aluminum, 3.898 in. Bore, 3.622 in. Stroke, Flat Top, Chevy, LS, Set of 8
Part Number: UEM-S00043
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Piston and Ring Kits, Premium, Forged Aluminum, 3.898 in. Bore, 3.622 in. Stroke, Dish, Chevy, LS, Set of 8
Part Number: UEM-S00049
Not Yet Reviewed
Estimated Ship Date: Feb 17, 2026 if ordered today
Estimated Ship Date: Feb 17, 2026 if ordered today
Pistons, FX-Series, Forged 4032, 15.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1-2813-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged 4032, 10.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1-2911-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged 4032, 6.00cc Dome, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1-2912-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged 4032, 15.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1-2913-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged 4032, 22.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1-2914-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged 4032, 5.00cc Flat, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1-2910-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged, 15.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-2-2913-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged, 22.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-2-2914-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, FX-Series, Forged, 29.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-2-2915-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, SX-Series, Forged, 10.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1911-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, SX-Series, Forged, 15.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1913-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
Pistons, SX-Series, Forged, 22.00cc Dish, 3.898 in. Bore, Chevy LS, Set of 8
Part Number: DMS-1914-3898
Not Yet Reviewed
Estimated Ship Date: Jan 27, 2026 if ordered today
Estimated Ship Date: Jan 27, 2026 if ordered today
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Summit Racing™ Pro LS Forged Pistons SUM-326S453898-3
