Availability
Pistons
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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, Flat, 4.165 in. Bore, Chevy, Set of 8
Part Number: SLP-H400CP40
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: 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: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 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 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 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: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 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 Set, 400 SBC SX Series -5cc Flat Top Piston Set. 4.165 bore
Part Number: DMS-K8120-4165
Not Yet Reviewed
Estimated Ship Date: Nov 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 2026 if ordered today
434 CHEVY SMALL BLOCK -21CC DI
Part Number: DMS-8135-4165
Not Yet Reviewed
Estimated Ship Date: Nov 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.165 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB159-040
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Flat, 4.165 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-9911HC-040
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.165 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-9907HC-040
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Piston Set, 400 SBC K2-FX Series -16cc Dish Top Piston Set. 4.165 bore
Part Number: DMS-K2-2403-4165
Not Yet Reviewed
Estimated Ship Date: Nov 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 2026 if ordered today
Piston Set, 400 SBC K2-FX Series -16cc Dish Top Piston Set. 4.165 bore
Part Number: DMS-K2-2303-4165
Not Yet Reviewed
Estimated Ship Date: Nov 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 2026 if ordered today
Piston Set, 400 SBC SX Series -21cc Dish Top Piston Set. 4.165 bore
Part Number: DMS-K8135-4165
Not Yet Reviewed
Estimated Ship Date: Nov 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 2026 if ordered today
Piston Set, 400 SBC SX Series +4cc Dome Top Piston Set. 4.165 bore
Part Number: DMS-8137-4165
Not Yet Reviewed
Estimated Ship Date: Nov 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 2026 if ordered today
434 CHEVY SMALL BLOCK -21CC DI
Part Number: DMS-8125-4165
Not Yet Reviewed
Estimated Ship Date: Nov 9, 2026 if ordered today
Estimated Ship Date: Nov 9, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.165 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB147-040
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.165 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB128-040
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Piston, Brodix®, Forged, Dome, 2-Valve Reliefs, 4.165 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Right, Each
Part Number: JEP-170768R
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston, Forged, Dish, 2-Valve Reliefs, 4.165 in. Bore, 3.750 in. Stroke, 5.700 in. Rod, 1.425 in. Compression, Chevy, Each
Part Number: JEP-139626S
Not Yet Reviewed
Estimated Ship Date: Nov 11, 2026 if ordered today
Estimated Ship Date: Nov 11, 2026 if ordered today
Pistons, Pro Tru Street, Forged Aluminum, Flat Top, 4.165 in. Bore, Rings, Chevrolet, 6.6L, Single Piston, Each
Part Number: WIS-5510A4
Not Yet Reviewed
Estimated Ship Date: Nov 17, 2026 if ordered today
Estimated Ship Date: Nov 17, 2026 if ordered today
Piston, 23 Degree, Forged, Dome, 2-Valve Reliefs, 4.165 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Left, Each
Part Number: JEP-182057L
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Piston, 23 Degree, Forged, Dome, 2-Valve Reliefs, 4.165 in. Bore, 3.750 in. Stroke, 6.000 in. Rod, 1.125 in. Compression, Chevy, Right, Each
Part Number: JEP-182062R
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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