Availability
Pistons
Piston, Forged, Flat Top, 2-Valve Reliefs, 4.000 in. Bore, 3.500 in. Stroke, 6.125 in. Rod, 1.125 in. Compression, Chevy, Each
Part Number: JEP-178676S
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dish, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB158KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Piston Set, 350 SBC E Series -4cc Flat Top Piston Set. 4.000 bore
Part Number: DMS-K8705-4000
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.000 in. Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, GM, Set of 6
Part Number: UEM-3451HC-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB228KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dome, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB157KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Pistons, Hypereutectic, Step, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8
Part Number: UEM-KB356-STD
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8
Part Number: UEM-KB181-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Dish, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB142KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Piston Set, 6.0 / LS2 / L98 / LQ9 LS E Series +3cc LS Flat Top Piston Set. 4.000 bore
Part Number: DMS-8775-4000
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8
Part Number: UEM-KB148-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8
Part Number: UEM-KB311-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Pistons, E-Series, Forged, Dish, 4.000 in. Bore, Ford, Set of 8
Part Number: DMS-8763-4000
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB134KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8
Part Number: UEM-KB320-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Piston and Ring Kit, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-KB120KTM-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Pistons, Hypereutectic, Dome, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB105-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB171-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Pistons, Hypereutectic, Dish, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB121-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Small Block, Kit
Part Number: UEM-9909HCKTDSTD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
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-326S43400012
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Pistons, Hypereutectic, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-KB193-STD
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Single Piston
Part Number: MAH-S2243543
Not Yet Reviewed
Estimated Ship Date: May 26, 2026 if ordered today
Estimated Ship Date: May 26, 2026 if ordered today
Pistons, Hypereutectic, Flat, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8
Part Number: UEM-9909HC-STD
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
Single Piston
Part Number: MAH-S2243663
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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