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JE Pistons’ 20° Big Block Chevy Pistons

Forged in-house from 2618-T6 aluminum, they incorporate many special features that elevate these new 20° pistons above the norm.

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After developing a multitude of custom pistons for big block Chevy engines equipped with 20° cylinder heads, like the Dart Pro1 20° and Brodix SR20, the engineering team at JE Pistons has created the 20° BBC Series that combines high-quality, custom piston features with off-the-shelf convenience. The pistons are available with 23cc and 18cc domes, designed for high horsepower, naturally aspirated and nitrous engines with bore sizes from 4.600˝ to 4.625˝.

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Forged in-house from 2618-T6 aluminum, they incorporate many special features that elevate these new 20° pistons above the norm. They include JE’s Ultra-Groove process that creates the industry’s flattest and smoothest ring grooves with tolerances held to a millionth of an inch, vertical gas ports providing a consistent ring seal. Special contact-reduction grooves to reduce friction and minimize detonation, while the power adder accumulator groove provides increased accumulator area without weakening the ring land.

The dome incorporates a fire slot for improved flame travel and combustion efficiency and is designed to accommodate up to 2.450˝ diameter intake valves, while the underside is 3D crown-milled to remove all unnecessary weight and reduce the reciprocating mass. Optimum wrist pin lubrication is assured through employing a broach pin oiler with an accumulator groove.

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For more information: call 714-898-9763 or www.JEpistons.com.

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