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Engines and Components› Pistons and Piston Rings

KB PERFORMANCE PISTONS

SBF Flat Top Piston Set 4.030 Bore -6.5cc

$573.44 $461.02 Save $112.42

SKU: K02K KB151.030

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The KB Series Hypereutectic 390 Alloy with 16% Silicon Pistons are designed for Ford Small Block 351W engines. They feature a flat top with two valve reliefs, a 4.030" cylinder bore, and a +6.5cc dome volume. These pistons are sold in sets of 8 and include lockrings and pins.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandKB PERFORMANCE PISTONS
Part NumberK02K KB151.030

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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