Availability
Pistons
Piston and Ring Kit, Pro Tru Street, Forged Aluminum, Flat Top, 4.165 in. Bore, Chevy, Small Block, Kit
Part Number: WIS-PTS525A4
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Forged Pro pistons for SB Chevy 400, 4.165 bore, 1.425 C.H., 3.75 in. stroke, 5.7 in. rod, 12cc Dish, 10.5@64cc, 10.2@67cc, 9.8@72cc.
Part Number: SUM-SBC40040
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Dome, 4.165 in. Bore, Chevy, Set of 8
Part Number: UEM-KB160-040
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Set, 455 Olds. K1-FX Series -12cc Olds Flat Top Piston Set. 4.165 bore
Part Number: DMS-K1-6000-4165
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2026 if ordered today
Estimated Ship Date: Nov 12, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.165 in. Bore, Chevy, Set of 8
Part Number: SLP-H400CP40
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Domestic Series - 750HP Rated - 2618 Material - Includes Pins and Rings
Part Number: DPP-11331-8
Not Yet Reviewed
Estimated Ship Date: Dec 7, 2026 if ordered today
Estimated Ship Date: Dec 7, 2026 if ordered today
Piston and Ring Kit, PowerPak, 4.165 in. Bore, 3.875 in. Stroke, 6.00 in. Rod, Domed, Forged, Chevrolet, Small Block Gen I, Kit
Part Number: MLE-197754765
Not Yet Reviewed
Estimated Ship Date: Nov 11, 2026 if ordered today
Estimated Ship Date: Nov 11, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dish, 4.165 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB147KTM-040
Not Yet Reviewed
Estimated Ship Date: Dec 2, 2026 if ordered today
Estimated Ship Date: Dec 2, 2026 if ordered today
Piston and Ring Kit, Forged, Flat, 4.165 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-IC849KTD-040
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2026 if ordered today
Estimated Ship Date: Dec 4, 2026 if ordered today
Pistons, Rings, FX-Series, Forged 4032, 15.00cc Dish, 4.165 in. Bore, Chevy LS, Set of 8
Part Number: DMS-K1-2943-4165
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2026 if ordered today
Estimated Ship Date: Nov 12, 2026 if ordered today
Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.165 in. Bore, 4.250 in. Stroke, Dish, Pontiac, Set of 8
Part Number: UEM-IC981KTD-040
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2026 if ordered today
Estimated Ship Date: Dec 4, 2026 if ordered today
Pistons, 18 Degree, Forged, Dome, 2-Valve Reliefs, 4.165 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Set of 8
Part Number: JEP-213123-8
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Piston Set, 401 AMC V8 K1-FX Series -3cc AMC Flat Top Piston Set. 4.165 bore
Part Number: DMS-K1-6620-4165
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2026 if ordered today
Estimated Ship Date: Nov 12, 2026 if ordered today
Pistons, PowerPak Piston and Ring Kits, Stroked, 4.165 in. Bore, Forged Aluminum, Flat Top, Rings, Chevrolet, 302/327/350 Small Block, Set of 8
Part Number: MLE-930201165
Estimated Ship Date: Nov 11, 2026 if ordered today
Estimated Ship Date: Nov 11, 2026 if ordered today
2-2470-4165-434-small-block-chevy-2-fx-series-5cc-flat-top-forged-piston-set-4-165-bore
Part Number: DMS-2-2470-4165
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2026 if ordered today
Estimated Ship Date: Nov 12, 2026 if ordered today
Pistons, Forged, Flat, 4.165 in. Bore, Chevy, Small Block, Set of 8
Part Number: WIS-PTS510A4
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston Set, 400 SBC SX Series +4cc Dome Top Piston Set. 4.165 bore
Part Number: DMS-8127-4165
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2026 if ordered today
Estimated Ship Date: Nov 12, 2026 if ordered today
Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.165 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-9911HCKTM040
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2026 if ordered today
Estimated Ship Date: Dec 4, 2026 if ordered today
Forged Pro pistons for SB Chevy 400 Long Rod, 4.165 bore, 1.125 C.H., 3.75 in. stroke, 6 in. rod, 12cc Dish, 10.5@64cc, 10.2@67cc, 9.8@72cc.
Part Number: SUM-SBC40040L
Estimated Ship Date: Dec 14, 2026 if ordered today
Estimated Ship Date: Dec 14, 2026 if ordered today
Piston, Forged, Dome, 2-Valve Reliefs, 4.165 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Each
Part Number: JEP-142025S
Not Yet Reviewed
Estimated Ship Date: Nov 2, 2026 if ordered today
Estimated Ship Date: Nov 2, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.165 in. Bore, Chevy, Set of 8
Part Number: SLP-H615CP40
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kits, Premium, Forged 2618 Aluminum, 4.165 in. Bore, 3.875 in. Stroke, Dome, Chevy, Small Block, Set of 8
Part Number: UEM-IC965KTD-040
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2026 if ordered today
Estimated Ship Date: Dec 4, 2026 if ordered today
Piston and Ring Kit, Forged, Dish, 4.165 in. Bore, Pontiac, V8, Kit
Part Number: UEM-IC938KTD-040
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2026 if ordered today
Estimated Ship Date: Dec 4, 2026 if ordered today
Pistons, Forged, Dish, 4.165 in. Bore, Oldsmobile, Set of 8
Part Number: SLP-L2323F40
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston and Ring Kit, Forged, 4.165 in. Bore, Chevy, Kit
Part Number: MLE-930208865
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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