Manley Chrysler 5.7L Hemi 3.937in Bore .020in Oversize 9.3cc Dome Piston Set

When you're rebuilding the top end of your 5.7L Hemi for your 2005-2008 Chrysler 300, you want parts that can handle the power. This set of eight forged pistons from Manley Performance is built for just that. They come with a 3.937-inch bore, which is .020 inches larger than stock, and feature a 9.3cc dome. This specific sizing is crucial for achieving the correct compression ratio and ensuring a proper fit within your engine block after machining.

Manley uses their signature 2618 alloy forgings for these pistons, which are known for being strong and reliable, even under demanding conditions. They also include tool steel wrist pins for added durability. The pistons are designed with proven cam and barrel skirt profiles, which help them generate power efficiently while also being gentle on your cylinder walls during operation. Plus, the skirt coatings on these particular pistons help reduce friction. The ring lands and grooves are machined to very precise standards, which is key for getting a good seal with your piston rings, leading to better compression and more power output.

This set includes eight pistons, eight wrist pins, and eight sets of wrist pin locks. Remember that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.