Exterior Components› Body Panels and Components
United Engine & Machine Co
CHEVROLET 377/400 ROD 5.7/5.565 FLAT TOP +7CC 2V KB HYPER PISTON SET
SKU: U00B KB172.020
Moderate — 2–4 hours
Description
These pistons feature a flat top with two valve reliefs and use a standard/de-stroked engine stroke with a 3.750 in. stroke and 5.565 in. rod length. They include wrist pins and retainers, and are compatible with press-fit or floating wrist pin styles.
Fitment
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Specifications
| Brand | United Engine & Machine Co |
| Part Number | U00B KB172.020 |
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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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