Exterior Components› Body Panels and Components
United Engine & Machine Co
CHEVROLET 400 ROD 5.700 SOLID DOME .5CC 2V KB HYPER PISTON SET
SKU: U00B KB140.STD
Professional / shop required
Description
MIA's Description
These pistons feature a solid dome design with two valve reliefs and a bore size of 4.125 inches. They utilize 1/16 in. x 1/16 in. x 3/16 in. piston ring thickness. The wrist pin style is press-fit or floating, and the pin diameter is 0.927 inches.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B KB140.STD |
Videos
Cast vs Hypereutectic vs Forged Pistons | Whats the Difference?
Engine Failure!? Watch if you are running Hypereutectic pistons!
KB Pistons and Ring End Gap
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Cast vs. Forged Pistons: Which One is Best for Your Engine?
124CI Keith Black/KB Pistons | Shop Talk Episode 18
2618 or 4032? Tips for Choosing the Best Piston Alloy for Your Performance Engine from RaceTec
The Truth: Cast vs Hypereutectic Pistons - Which One Is Better? | Engine Building 101 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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