Ferrea E11010 Titanium Valve Spring Retainer Honda D-Series 5.5mm

The Ferrea E11010 is a precision CNC-machined titanium valve spring retainer designed specifically for Honda D-Series engines with 5.5mm valve stems, including D16Z6, D16Y5, D16Y7, and D16Y8 applications found in 1992-2000 Honda Civic models. Engineered for high-performance and racing applications, this retainer is manufactured from aerospace-grade titanium and features complete heat treatment to deliver exceptional strength and durability.

Key Features:

• CNC-machined from aerospace quality titanium for maximum strength
• 40% lighter than conventional steel retainers, reducing valvetrain mass
• Fully heat-treated and finished to exact tolerances
• Designed for 5.5mm valve stem diameter applications
• Compatible with Ferrea S10029 single beehive valve springs
• Reduces valvetrain harmonics for improved stability at high RPM
• Ideal for turbocharged, high-revving, and racing engine builds

Installation Notes:

• Requires factory Honda spring seat locators (not included)
• Designed to work with Ferrea valve springs and locks
• Compatible with Ferrea K10034 valve locks

Ferrea's titanium retainers are trusted by professional engine builders and racers worldwide for their superior quality, precise manufacturing, and proven performance in the most demanding racing conditions. The reduced weight helps minimize valve float and allows for more aggressive camshaft profiles and higher engine speeds.