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Best Seller 6203-3840 231 V6 & Gn Buick V6 & Grand National Fx Series -15cc Dish Top Buick V6 & Grand National Forged Piston Set 3.840 Inch Bore Pin Dia.: 0.94" Comp Height: 1.85" Easy Returns [7kwEOHJd]

$52.99 $169.99 -69%

High-Performance Buick V6 & Grand National PistonsExperience the ultimate in engine performance with our 6203-3840 231 V6 & GN Buick V6 & Grand National FX Series -15cc Dish Top Pistons. These high-quality forged pistons are designed to enhance the p

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Best Seller 6203-3840 231 V6 & Gn Buick V6 & Grand National Fx Series -15cc Dish Top Buick V6 & Grand National Forged Piston Set 3.840 Inch Bore Pin Dia.: 0.94" Comp Height: 1.85" Easy Returns [7kwEOHJd]

High-Performance Buick V6 & Grand National Pistons

Experience the ultimate in engine performance with our 6203-3840 231 V6 & GN Buick V6 & Grand National FX Series -15cc Dish Top Pistons. These high-quality forged pistons are designed to enhance the power and efficiency of your Buick V6 and Grand National vehicles. With a bore size of 3.840 inches and a pin diameter of 0.94 inches, these pistons are a perfect fit for your engine. The unique -15cc Dish Top design and 1.85-inch comp height offer an optimal compression ratio for maximum power output.
  • Forged Construction: Forged pistons provide increased strength and durability compared to cast pistons.
  • Optimal Compression Ratio: The precise 1.85-inch comp height ensures the best balance between power and efficiency.

Technical Specifications and Upgrades

Our pistons are engineered to meet the highest standards of quality and performance. Key specifications include a full-floating or press fit design, a ring groove size of 1.2/1.2/3MM, and a stroke of 3.400 inches. The rod diameter is 5.96 inches, and the approximate compression ratio ranges from 41cc-11.14 to 55cc-9.32, depending on the cylinder head and camshaft combination. As of April 17, 2025, all Buick ring grooves have been updated to the new specifications of 1.2-1.2-3mm, ensuring compatibility with the latest engine technologies.
  • Ring Groove Update: Stay up-to-date with the latest specifications for enhanced performance and longevity.
  • Full-Floating or Press Fit: Choose the fitting method that best suits your engine's requirements.

Applications and Benefits

Whether you're a seasoned racer or a weekend enthusiast, our Buick V6 & Grand National Pistons are the perfect addition to your engine. These pistons are designed to provide improved power, smoother operation, and longer engine life. Ideal for use in a variety of applications, including street performance, drag racing, and show cars, these pistons will help you achieve your performance goals.
  • Performance Enhancements: Experience increased power and efficiency with these high-quality pistons.
  • Longevity: Enjoy a longer-lasting engine with reduced wear and tear.
For those looking to take their Buick V6 or Grand National to the next level, our pistons are the ideal choice. Upgrade your engine today and feel the difference in performance and reliability.

What Our Customers Say

January 16, 2026

Absolutely no complaints!

This product is a shining example of quality manufacturing.

- Austin S..

January 16, 2026

Absolutely no complaints!

It's a very elegant solution. I'm thoroughly impressed.

- Delilah G..

January 16, 2026

Absolutely no complaints!

This product is a brilliant choice. It's a quality item, through and through.

- Camryn S..

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