Engines and Components Pistons and Piston Rings

CP Pistons

CP Piston BRS Small Block Chrysler 4.080 Bore 3.310 Stroke 6.123 Rod Set Of 8 (MTO Non-Cancel)

$955.50

SKU: C00A BM4050-040

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: BM4050-040

MIA's Description

Set of eight forged pistons from CP Pistons, designed for Small Block Chrysler engines. Features a 4.080-inch bore, 3.310-inch stroke, and intended for use with a 6.123-inch connecting rod. Meticulously crafted BRS series pistons from high-strength 2618 forged aluminum alloy for performance engine builds, offering robust construction for higher cylinder pressures and temperatures. Dimensions are critical for achieving desired compression ratio and displacement. Made to order, ensuring precise specifications. Not eligible for cancellation once ordered. Not CARB approved, cannot be shipped to California. Verify fitment and compatibility with specific engine components before ordering.

Fitment

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Specifications

BrandCP Pistons
Part NumberC00A BM4050-040

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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