KB Performance Pistons

4.45 out of 5 stars 137 Customer Reviews

KB Performance hypereutectic pistons are made from 390 aluminum alloy and heat-treated to T6 standards, which makes them 30 percent stronger than ordinary untreated

KB Performance hypereutectic pistons are made from 390 aluminum alloy and heat-treated to T6 standards, which makes them 30 percent stronger than ordinary untreated hypereutectics. Their 100 percent CNC-machined crowns, high upper compression-ring location, gas-accumulator groove, drilled oil returns, and spiral-lock retainer grooves make these pistons outstanding for performance applications. They have a lightweight, rigid-rib skirt design that stabilizes the piston in the bore. All of this adds up to pistons that fit tighter than forged types, provide improved oil control, reduce blow-by, increase ring life, elimin

Showing In Stock Items. Show All 18 Items.

Results 1 - 16 of 16

KB Performance Pistons KB422.060

PISTON SET

Part Number: UEM-KB422-060

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB197.040

Pistons, Hypereutectic, Dish, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB197-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB193.040

Pistons, Hypereutectic, Dish, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB193-040

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB222.040

Pistons, KB Performance, 4.190 in. Bore, Flat, 1.490 in. Compression Height, Press/Float Pin, 5/64 x 1/16 x 3/16 Ring Grooves, Pontiac, Set of 8

Part Number: UEM-KB222-040

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB228.080

Pistons, Hypereutectic, Flat, 4.080 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB228-080

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB121.030

Pistons, Hypereutectic, Dish, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB121-030

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB193.020

Pistons, Hypereutectic, Dish, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB193-020

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB193.060

Pistons, Hypereutectic, Dish, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB193-060

Not Yet Reviewed

Estimated Ship Date: Dec 11, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 11, 2025 if ordered today

KB Performance Pistons KB121.040

Pistons, Hypereutectic, Dish, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB121-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB101.STD

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-KB101-STD

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB228.020

Pistons, Hypereutectic, Flat, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB228-020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB228.070

Pistons, Hypereutectic, Flat, 4.070 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB228-070

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB197.020

Pistons, Hypereutectic, Dish, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB197-020

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB422.040

Pistons, KB Performance, 4.160 in. Bore, Dome, 1.710 in. Compression Height, Press/Float Pin, 5/64 x 5/64 x 3/16 Ring Grooves, Pontiac, Set of 8

Part Number: UEM-KB422-040

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB120.020

Pistons, Hypereutectic, Flat, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB120-020

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

KB Performance Pistons KB121.060

Pistons, Hypereutectic, Dish, 4.060 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB121-060

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 12, 2025 if ordered today

Page 1 of 1