Manley 90-94 Eclipse (6 Bolt 4G63T) 85mm STD Bore 8.5:1 Dish Piston Set w/ Rings

Starting with 2618 alloy forgings, these Manley pistons are built for serious performance in your 1990-1993 Eagle Talon. The 85mm standard bore size and 8.5:1 dish compression ratio are specifically chosen for the 6-bolt 4G63T engine, making them a solid choice for rebuilding or upgrading your engine's heart. Manley uses domestic forgings known for their strength, which is crucial when you're pushing your engine hard.

Beyond the strong base material, Manley incorporates proven cam and barrel skirt profiles. These aren't just for looks; they help the piston move smoothly in the cylinder, reducing wear on the cylinder walls while still allowing the piston to generate substantial power. The ring lands and grooves are machined to very strict standards, which is key for getting a good seal from your piston rings. A good ring seal means better compression and more power getting to the wheels. These pistons also come with premium chrome moly wrist pins for added durability.

When you're rebuilding an engine, especially one known for performance like the 4G63T, attention to detail matters. Manley's unique manufacturing process allows them to machine the skirt and cut the ring grooves in one operation. This ensures the piston's ring grooves are perfectly square to the skirt, which further enhances the ring seal and overall engine performance. This set includes the pistons and rings, ready for installation by a professional engine builder or a dedicated DIYer.