What is the main benefit of upgrading to these single valve springs?

These springs are designed to improve valve control at higher RPMs. This helps prevent valve float, ensuring valves close reliably when the engine is working hard.

Are these springs compatible with stock camshafts?

While designed for modified engines, these springs can often be used with stock camshafts. However, for optimal performance and to prevent potential coil bind, it's recommended to consult with a performance engine builder or refer to Brian Crower's specific application notes.

What other parts might be needed when installing these valve springs?

When replacing valve springs, it's common practice to also inspect or replace valve seals and retainers. Depending on your specific build, you may also need a valve spring compressor tool for installation.

Brian Crower Single Valve Springs BC1100

Name: Brian Crower Mitsubishi 4G63 Eclipse/Evo/Dodge SRT-4 Single Valve Springs
Brand: Brian Crower
SKU: brian-crower-brian-crower-mitsubishi-4g63-eclipse-evo-dodge-srt-4-single-valve-s-t14-1487
Price: 96.00 USD
Availability: InStock

Brian Crower Mitsubishi 4G63 Eclipse/Evo/Dodge SRT-4 Single Valve Springs

$96.00

Only 6 left in stock

Brian Crower BC1100 single valve springs for Mitsubishi 4G63 engines. Improves valve control at higher RPMs.

Key Features

Fits Chrysler PT Cruiser (2003-2009), Dodge Neon (2003-2005), Eagle Talon (1990-1998), Mitsubishi Eclipse (1990-1999), Mitsubishi Galant (1991-1992), Mitsubishi Lancer (2003-2006), and Plymouth Laser (1990-1994).
Constructed from high-tensile spring wire for durability and consistent tension.
Designed to improve valve control at higher engine speeds.
Helps prevent valve float in modified 4G63 engines.
A popular upgrade for performance-oriented Mitsubishi 4G63 applications.

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Product Details

These Brian Crower single valve springs are built with a specific spring rate designed to handle the demands of modified Mitsubishi 4G63 engines. They are a popular choice for builders looking to improve valve control, especially when increasing engine speed beyond stock limits. The springs are made from high-tensile wire, which helps them maintain their intended tension and resist fatigue over time.

When you're pushing your 4G63 engine, particularly in applications like the Dodge Neon SRT-4, Mitsubishi Eclipse, or Chrysler PT Cruiser, the stock valve springs can sometimes struggle to keep up. These Brian Crower springs offer an updated rate that helps prevent valve float, ensuring that your valves close reliably even at higher RPMs. This improved control is crucial for maintaining engine performance and preventing potential damage under stress. They are designed as a direct replacement for the factory springs, making installation straightforward for those rebuilding or upgrading their engine's valvetrain.