Hey there gearheads, if you're rebuilding a 2002 to 2014 GM or Chevrolet 6.0L (364 cubic inch) engine, this set of 8 flat-top hypereutectic pistons is exactly what you need. They're .030 inch (.75mm) oversized, with a bore diameter of 4.030 inches – perfect for a standard overbore after your cylinders have been honed. Made from high-quality cast aluminum using advanced engineering, these pistons are designed to meet or even beat original equipment specs. They offer great strength and durability for a street performance or mild build, and they come with precision size and weight grading so your engine runs smooth and balanced. Some sets might even have special treatments like skirt coatings. Whether you're freshening up an LS-based truck motor or doing a performance refresh, these pistons from LowPricedAutoParts (by Enginetech) are a solid, budget-friendly choice. Just double-check your cylinder bore size before ordering – and use Amazon's fitment check to be sure. Get ready for reliable power!