Ramey Racing Dual Valve Spring & Titanium Retainer Kit – for Mercury© 450/500R
$3,300.00
Built for power. Engineered for durability.
Ramey Racing’s custom-forged Mercury© 450R pistons are made for us by Diamond Pistons, a leader in high-performance racing components. Designed to withstand the extreme demands of high-boost marine applications, these pistons are precision-machined from aerospace-grade aluminum and built to deliver maximum strength, reduced weight, and exceptional heat resistance.
Key features:
- Forged aluminum construction – ultra-light, race-proven strength
- Heat-treated skirts & coatings – reduced friction, extended wear life
- DLC-coated wrist pins – diamond-like carbon coating for extreme wear resistance and low friction
- Engineered for high boost – ideal for supercharged or tuned 450Rs
Whether you’re chasing top speed or building a bulletproof offshore setup, Ramey Racing pistons are built to push your 450R to the limit—without compromise.
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Built for the demands of high-RPM, high-boost Mercury V8 performance applications, the Ramey Racing Dual Valve Spring & Titanium Retainer Kit delivers the valve control needed to keep your engine stable when factory components reach their limits.
Designed for serious racing and performance builds, this package combines premium dual springs with lightweight titanium retainers to reduce valvetrain mass, improve valve control, and increase reliability at elevated engine speeds.
Features:
• Designed for Mercury 4.6L V8 450R & 500R platforms
• Premium dual valve spring configuration
• Lightweight titanium retainers
• Improved valve control at high RPM
• Helps prevent valve float in aggressive performance applications
• Ideal for supercharged, modified, and race-focused builds
• Sold as a complete engine set
Whether you’re chasing top speed, building a competition engine, or simply demanding more from your Mercury V8, this valvetrain package provides the stability and durability required for extreme performance.
Ramey Racing is an independent performance company and is not affiliated with, endorsed by, or sponsored by Mercury Marine or Brunswick Corporation. Mercury®, Mercury Racing®, 450R®, 500R®, and 650R® are registered trademarks of Brunswick Corporation and are used solely to identify compatible platforms.
| Weight | 7 lbs |
|---|---|
| Dimensions | 20 × 13 × 13 in |
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