Engines and Components› Pistons and Piston Rings

JE Pistons

BBC 20'' -4.600/.990/18CC

$237.49

SKU: J001 377896S

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INSTALL DIFFICULTY
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Description

The JE Pistons 377896S is a single dome piston designed for Chevrolet BBC SR20 applications with a 4.600-inch bore. JE Pistons, a leader in forged racing pistons for over 70 years, designs, forges, and machines all its pistons in-house. This commitment ensures control over every step of the manufacturing process, resulting in premium racing features.

The piston is forged in the USA from 2618 aluminum, providing high tensile strength and performance suitable for top levels of motorsports. It features an H13 tool steel alloy wrist pin and a compression height of 1.270 inches.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 377896S

Videos

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Stock vs race pistons: Which is better?
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The go to Ring compressor tool to install your pistons without damaging the piston rings. #rsgarage
Secret Piston Ring Trick Small Block Chevy @enginebuildingmagazine #enginebuild #sbc350 #engine

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Part 1: installing pistons and rods in the block.

Part 1: installing pistons and rods in the block.
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Piston Options - What to look for when buying pistons for your 2JZ | RS Garage Jays Tech Tips
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Forged vs Cast Piston Strength!

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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