Pistons - 4.000 in. Bore (in.) - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Pro LS Forged Pistons SUM-110927400020

Summit Racing™ Pro LS Forged Pistons SUM-110927400020

Pro LS 2618 Forged Piston, 4.000 bore, 1.110 C.H., 20cc dish, 4.000in. Stroke, 6.125 Rod, NA/Boost/Nitrous, Cathedral/Rect., 6.0 LY6 LQ4 LQ9, Set of 8

Part Number: SUM-110927400020

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

ICON FHR Series Pistons for GM LS IC9992C.STD

Pistons, FHR Coated, Forged 4032 Aluminum, Flat Top with Two Reliefs, 4.000 in. Bore, 0.927 in. Wrist Pin, GM, LS, 6.0/6.2L, Set

Part Number: UEM-IC9992C-STD

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

KB Performance Hyper Piston and Ring Kits KB115KTM.STD

Piston and Ring Kit, Hypereutectic, Flat, 4.000 in. Bore, Ford, Small Block, Kit

Part Number: UEM-KB115KTM-STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

ICON FHR Series Piston and Ring Kits for GM LS IC9992CKTS.STD

Piston & Ring Set, 1 Set IC9992C.STD/1 Set 4000CS8.005

Part Number: UEM-S00206

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

KB Performance Claimer Piston and Ring Kits 9906HCKTM.STD

Piston and Ring Kit, Claimer, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-9906HCKTMSTD

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

Silv-O-Lite Cast Pistons 1170.STD

Pistons, Cast, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, L6, Set of 6

Part Number: UEM-1170-STD

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

Speed-Pro Hypereutectic Pistons WH423DCP

Pistons, Hypereutectic, Chevy 350, Dish, 4.000 in. Bore, Each

Part Number: SLP-WH423DCP

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

Speed-Pro Hypereutectic Pistons H597DCP

Pistons, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Set of 8

Part Number: SLP-H597DCP

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

D.S.S. E Series Forged Piston and Ring Kits K8740-4000

Piston Set, 347 Stroker SBF 289 - 302 E Series -6cc Dish Top Inline Piston Set. 4.000 bore

Part Number: DMS-K8740-4000

Not Yet Reviewed

Estimated Ship Date: Dec 4, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 4, 2025 if ordered today

KB Performance Pistons KB115.STD

Pistons, Hypereutectic, Flat, 4.000 in. Bore, Ford, Set of 8

Part Number: UEM-KB115-STD

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

Silv-O-Lite Hypereutectic Pistons 1144HC.STD

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-1144HC-STD

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

Silv-O-Lite Hypereutectic Pistons 3518HC.STD

Pistons, Hypereutectic, Dish, 101.6mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3518HC-STD

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

Speed-Pro Hypereutectic Pistons H631CP

Pistons, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Set of 8

Part Number: SLP-H631CP

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

Summit Racing™ Coated Forged Pistons SUM-17406C

Pistons, Forged Aluminum, Flat, 4.000 in. Bore, 1.115 in. Compression Height, 0.927 in. Pin, Chevy, LS, Set of 8

Part Number: SUM-17406C

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

KB Performance Hyper Piston and Ring Kits KB151KTM.STD

Piston and Ring Kit, Hypereutectic, Flat, 4.000 in. Bore, Ford, Kit

Part Number: UEM-KB151KTM-STD

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

Silv-O-Lite Hypereutectic Pistons 3173HC.STD

Pistons, Hypereutectic, Flat, 4.000 in. Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, Ford, Set of 8

Part Number: UEM-3173HC-STD

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

Speed-Pro Hypereutectic Pistons WH654CP

Piston, Hypereutectic, Dish, 4.000 in. Bore, Ford, Each

Part Number: SLP-WH654CP

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

KB Performance Pistons KB246.STD

Pistons, Hypereutectic, Flat, 4.000 in. Bore, Ford, Set of 8

Part Number: UEM-KB246-STD

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

KB Performance Claimer Pistons 9908HC.STD

Pistons, Hypereutectic, Flat, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-9908HC-STD

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

KB Performance Hyper Piston and Ring Kits KB158KTM.STD

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: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

Speed-Pro Hypereutectic Pistons WH345DCP

Pistons, Hypereutectic, Flat, 4.000 in. Bore, Chevy, Each

Part Number: SLP-WH345DCP

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

Summit Racing™ Forged Pro Pistons SUM-SBC350000

Forged Pro pistons for SB Chevy 350, 4.000 bore, 1.560 C.H., 3.48 in. stroke, 5.7 in. rod, 5cc flat top. 11:1@58cc, 10.2@64cc, 9.9@67cc, 9.4@72cc.

Part Number: SUM-SBC350000

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

Silv-O-Lite Hypereutectic Pistons 3437HC.STD

Pistons, Hypereutectic, Flat, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-3437HC-STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today

Speed-Pro Forged Pistons L2256F

Pistons, Forged, Flat, 4.000 in. Bore, Chevy, GMC, Set of 8

Part Number: SLP-L2256F

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

Silv-O-Lite Hypereutectic Pistons 3470HC.STD

Pistons, Hypereutectic, Dish, 4.000 in. Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, Set of 8

Part Number: UEM-3470HC-STD

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 22, 2025 if ordered today