Ferrea Mitsubishi 4G63T Dual Valve Spring - Set of 16

This set includes 16 Ferrea dual valve springs, specifically designed for the Mitsubishi 4G63T engine. These springs are a critical component for any performance-oriented rebuild or upgrade, helping to ensure your valves close quickly and reliably at high RPMs. When you're pushing your engine hard, especially in modified applications, the stock valve springs can struggle to keep up, leading to valve float and potential damage. Ferrea's dual spring design offers increased seat pressure and a higher open pressure compared to single springs, providing the necessary support for aggressive camshaft profiles and boosted conditions.

Crafted from high-strength spring steel, these springs are built to withstand the intense heat and stress found in high-performance 4G63T engines. The dual spring configuration provides a more stable valve motion, reducing the risk of valve float even at elevated engine speeds. This stability is crucial for maintaining consistent engine performance and protecting your valvetrain from damage. Proper installation is key, and while these are designed as direct replacements for the factory springs, it's always recommended to consult your engine's service manual or a qualified mechanic for specific installation procedures and torque specifications, especially when dealing with performance camshafts.

This set of 16 springs is what you'll need to complete your cylinder head work on a 4G63T. Investing in a well-built valve spring set like this is a smart move for anyone serious about the longevity and performance of their turbocharged Mitsubishi engine. It's a foundational piece for building a reliable and powerful engine that can handle the demands of spirited driving or track use.