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Engines and Components› Pistons and Piston Rings

KB PERFORMANCE PISTONS

SBM Flat Top Piston Set 4.040 Bore -5cc

$573.44 $461.02 Save $112.42

SKU: K02K KB107.040

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

Keith Black Hypereutectic pistons are a great choice for high performance marine, drag race, circle track, street or towing application builds. The low expansion 390 alloy with 16 percent silicon allows for a tighter piston to wall running clearance. Features include fully machined head and valve reliefs, triple spiral lock rings, CNC machined pin bores, accumulator groove, machined in oil returns, diamond finished skirts, mini grooves, wrist pins, and spiral locks. Fits SB (Small Block) Chrysler 360 and Small Block Mopar engines. Bore size is 4.040 inches. Rings (5/64 x 5/64 x 3/16) are not included.

Fitment

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Specifications

BrandKB PERFORMANCE PISTONS
Part NumberK02K KB107.040

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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