JE Pistons Nissan RB26DETT 86mmmm Bore 15.3cc Dome 8.2:1 CR - Set of 6

This kit gets you a full set of six JE Pistons, specifically made for the Nissan RB26DETT engine with an 86mm bore. These pistons feature a 15.3cc dome volume, resulting in a compression ratio of 8.2:1, which is a common target for boosted applications where you want to maintain reliability under pressure. JE Pistons has been making forged pistons for over 75 years, and they build these right here in the USA using 2618 aluminum, a strong material that holds up well in high-demand performance engines.

What sets these pistons apart is JE's proprietary Forged Side Relief (FSR) design. This helps reduce friction and weight by using a narrower skirt and a shorter wrist pin, which can lead to a little less power loss and a lighter rotating assembly. Depending on the specific application, these pistons might also come with an accumulator groove to help manage combustion gas pressure, improving ring seal and preventing flutter. Some applications also feature a skirt coating to further reduce friction and wear on the cylinder walls, which can also make the engine run a bit quieter. You'll also get high-quality wrist pins, locks, and JE's Pro Seal premium piston rings included in the kit, so you have most of what you need to get them installed.

Because these are forged from 2618 aluminum, they offer the high tensile strength needed for performance builds. They are designed specifically for the RB26DETT engine and this particular use case, aiming for a good balance of durability and optimized performance. Keep in mind these are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.