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In-Store Pickup Location

Keith Black KB Performance Pistons KB120-STD

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

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Brand: Keith Black/KB Pistons

Manufacturer's Part Number: KB120-STD

Part Type: Pistons

Product Line: Keith Black KB Performance Pistons

Summit Racing Part Number: UEM-KB120-STD

UPC: 800745043566

Bore (in): 4.000 in.

Bore (mm): 101.600mm

Piston Style: Flat top, with two valve reliefs

Piston Material: Hypereutectic aluminum

Compression Height (in): 1.561 in.

Piston Head Volume (cc): +7.00cc

Wrist Pin Style: Press-fit or floating

Pin Lock Rings Included: Yes

Wrist Pin Included: Yes

Pin Diameter (in): 0.927 in.

Piston Ring Thickness: 5/64 in. x 5/64 in. x 3/16 in.

Piston Rings Included: No

Quantity: Sold as a set of 8.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

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Tool Stroker Combinations

Keith Black 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 blowby, increase ring life, eliminate cold start-up knocking, and won't cost you an arm and a leg! Thousands of models are available—find the set and options designed for your vehicle and engine application.

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Some parts are not legal for use in California or other states with similar laws / regulations

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