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Professional Grade 8185-4040 408 Small Block Chevy Sx Series -21cc Dish Top Sbc 23 Degree Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.927" Comp Height: 1" Trial Pack [zib1h2sc]

$49.99 $159.99 -69%

8185-4040 408 Small Block Chevy SX Series PistonsIntroducing the 8185-4040 408 Small Block Chevy SX Series Pistons, designed for high-performance engines. This top-of-the-line piston set features a -21cc Dish Top design and a 23-degree forged piston,

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Professional Grade 8185-4040 408 Small Block Chevy Sx Series -21cc Dish Top Sbc 23 Degree Forged Piston Set 4.040 Inch Bore Pin Dia.: 0.927" Comp Height: 1" Trial Pack [zib1h2sc]

8185-4040 408 Small Block Chevy SX Series Pistons

Introducing the 8185-4040 408 Small Block Chevy SX Series Pistons, designed for high-performance engines. This top-of-the-line piston set features a -21cc Dish Top design and a 23-degree forged piston, ensuring maximum power and durability. With a bore size of 4.040 inches and a pin diameter of 0.927 inches, these pistons are perfect for your Small Block Chevy engine. The 1-inch Comp Height design offers the ideal combination of power and efficiency, making them a must-have for any performance enthusiast.

Product Specifications and Features

The 8185-4040 408 Small Block Chevy SX Series Pistons are engineered with precision and quality in mind. Key features include:
  • Full Floating or Press Fit: Choose the fitting method that best suits your engine setup for optimal performance.
  • Ring Groove: The 1/16-1/16-3/16" ring groove design ensures a tight seal, reducing oil consumption and improving combustion efficiency.
With a stroke of 4.000 inches and rods of 6, these pistons offer an approximate compression ratio of 58cc-10.62, 64cc-9.99, or 70cc-9.44, depending on your engine's needs. The -21cc Dish Top design provides a performance edge, while the forged construction ensures longevity and strength.

Practical Uses and Benefits

Whether you're a professional racer or a weekend warrior, the 8185-4040 408 Small Block Chevy SX Series Pistons are the perfect choice for your engine. These pistons offer numerous benefits, including:
  • Increased Performance: The -21cc Dish Top design and high compression ratio deliver enhanced power and acceleration.
  • Improved Durability: Forged construction ensures these pistons can withstand extreme conditions and high RPMs.
Ideal for a wide range of applications, from street performance to drag racing, these pistons are a great investment for any enthusiast looking to maximize their engine's potential.

What Our Customers Say

February 6, 2026

Absolutely no complaints!

An excellent purchase. It works real wonders.

- Max N..

February 6, 2026

Absolutely no complaints!

A solid buy. It is very highly recommended.

- Amber F..

February 6, 2026

Absolutely no complaints!

This is a really, really, really good item.

- Claudia C..

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