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CP Pistons

CP Piston & Ring Set for Toyota 4AG 20V - Bore 82mm - Compression Ratio 9:1

$885.15

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CP Piston & Ring Set for Toyota 4AG 20V - Bore 82mm - Compression Ratio 9:1

Key Features

  • This product is a piston and ring set.
  • Includes four forged pistons and matching piston rings.
  • Designed for Toyota 4AG 20V engines.
  • Features an 82mm bore size.
  • Achieves a 9:1 compression ratio.
  • Constructed from forged aluminum for improved strength and durability.
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About this part

Product Details

This kit includes a complete set of four forged pistons and matching piston rings, specifically made for the Toyota 4AG 20V engine with an 82mm bore. These pistons are designed to achieve a 9:1 compression ratio, which is a common target for naturally aspirated builds or those looking for a reliable street performance setup that can still handle boost. CP Pistons is known for making well-built engine components, and this set is no exception, offering a solid foundation for rebuilding or upgrading your 4AG engine.

Forged pistons like these are a significant step up from cast pistons. They start as a solid block of aluminum that's heated and hammered into shape, creating a much stronger and more durable grain structure. This makes them far more resistant to the extreme pressures and temperatures found inside a performance engine, especially if you plan on pushing your 4AG beyond stock power levels. The 82mm bore size is standard for many 4AG 20V builds, and the 9:1 compression ratio offers a good balance between power output and fuel octane requirements. You'll want to ensure your cylinder block is properly honed to match the piston diameter for a good seal.

When installing these pistons, pay close attention to ring gap specifications as recommended by CP Pistons. Proper ring gap is crucial for performance and engine longevity, especially with forged components. This set is a great choice if you're looking to rebuild your engine with robust, high-performance parts that can handle the demands of spirited driving or track use. Remember that this kit is not CARB approved and cannot be shipped to California.

Specifications

Brand
CP Pistons
Manufacturer Part #
SC7657-4

Frequently Asked Questions

CP Piston & Ring Set for Toyota 4AG 20V - Bore 82mm - Compression Ratio 9:1

$885.15