JE Pistons GM LS 4.070in Bore .010 LS3 SRP Pro 2618 Inverted Dome/Dish Pistons - Set of 8

Forged from 2618 aluminum, these JE Pistons SRP Pro 2618 pistons are built for serious performance builds. They're designed for GM LS engines with a 4.070-inch bore, and this set is specifically sized at 0.010 inches undersize, making them a good choice if you're re-boring your cylinders to match. The inverted dome/dish design is part of how they achieve a specific compression ratio for your build.

JE Pistons uses a proprietary Forged Side Relief (FSR) design, which means the skirt width is reduced. This not only helps minimize friction and power loss but also saves weight. You'll also find a low-friction skirt coating that helps reduce wear and operating noise, all while optimizing performance. The ring groove placement is proven to maintain a positive seal, even in high-horsepower, boosted applications, and the top land thickness adds extra strength where it's needed most. An accumulator groove is included to help reduce combustion gas pressure, which can prevent ring flutter and ensure a consistent seal for reliable power delivery.

This set includes everything you need to get started: the eight pistons, high-quality wrist pins, locks, and JE Pro Seal premium piston rings. All JE Pistons products, including these SRP Pro 2618 pistons, are made 100% in the USA, ensuring solid construction and materials for your high-demand engine build.