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EC 1.3 Billet Roller Rev Rockers with Bearings for Non-Hemi GX200/Clone
EC 1.3 Billet Roller Rev Rockers with Needle Bearings - Above
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EC 1.3 Billet Roller Rev Rockers with Bearings for Non-Hemi GX200/Clone

Part Number: 1505RR
Online Price: $199.99
EC 1.3 Billet Aluminum Ratio Rockers for Non-Hemi Honda, Clone, Tillotson, and Predator Engines – Performance Upgrade
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Description

EC 1.3 Billet Aluminum Ratio Rockers for Non-Hemi Honda, Clone, Tillotson, and Predator Cylinder Heads


Enhance the performance of your engine with the EC 1.3 Billet Aluminum Ratio Rockers, designed for Non-Hemi Honda, Clone, Tillotson, and Predator Cylinder Heads. These high-performance rockers are engineered to offer precision, durability, and smooth operation, making them the perfect upgrade for any small engine build, from racing go-karts to mini bikes and performance engines.


Key Features & Benefits:

  • Needle Bearings for Reduced Friction and Improved Durability: One of the most requested features, needle bearings reduce friction and wear compared to traditional bushing-style rockers. This upgrade helps prevent the rocker arms from seizing, especially during dry starts or improper assembly. However, proper lubrication is still essential, so be sure to use Maxima Racing Oil Assembly Lube during installation.
  • Lightweight Yet Stronger Design: The redesigned rocker arms have increased strength while keeping the overall weight low. The billet aluminum construction ensures a rigid, lightweight structure, helping reduce valve train harmonics and offering greater stability, especially at high RPMs. These rockers are ideal for engines with aggressive cams or high-performance setups that require precise operation.
  • Roller Tip for Increased Clearance and Reduced Wear: The larger roller tip not only allows for lash cap compatibility (useful for titanium valves), but also provides extra rocker arm-to-retainer clearance. This is particularly valuable in high-lift camshaft setups or aggressive racing builds. The roller tip reduces friction and wear on the valve tips, enhancing the longevity and efficiency of your engine.
  • Improved Valve Lift and Duration: The 1.3:1 rocker ratio increases valve lift, improving valve acceleration and duration, particularly at .150" lift and higher. This can significantly enhance engine performance by increasing the flow of air and fuel into the combustion chamber.
  • High-Quality Construction for Long-Term Reliability: Each rocker is made from aircraft-grade billet aluminum, with hardened roller tips and a larger diameter roller for improved performance and durability. The titanium lash adjuster nuts and needle bearings add to the rocker's overall strength and reliability.
  • Precise Shaft Mounting for Optimal Stability: The rockers are mounted on a standard shaft or trunnion, which keeps them stable above the valve and pushrods. This prevents distortion and deflection, ensuring smoother valve movement and improved camshaft profile accuracy.

Technical Specifications:

  • Material: Aircraft-grade CNC-machined billet aluminum
  • Roller Tip: Hardened, oversized for increased clearance
  • Ratio: 1.3:1
  • Needle Bearings: Yes, for reduced friction and improved durability
  • Main Shaft: Shaft-mounted with snap rings & brass washers for smooth action and security
  • Lash Adjuster Nuts: Titanium
  • Compatibility: Designed for Non-Hemi Honda, Clone, Tillotson, and Predator Cylinder Heads

Why Choose EC Rev Rockers?

The EC 1.3 Billet Aluminum Ratio Rockers are the best value in the market when it comes to high-performance rockers with needle bearings. Their precision engineering and high-quality materials provide exceptional durability, improved valve train geometry, and enhanced high-RPM stability—all at an affordable price. If you’re looking to improve your engine’s performance without breaking the bank, these rockers offer unmatched value and reliability for serious performance enthusiasts.

FAQ

FAQ for EC 1.3 Billet Aluminum Ratio Rockers for Non-Hemi Honda, Clone, Tillotson, and Predator Cylinder Heads


Q1: What is the advantage of the 1.3:1 ratio on these rockers?

A1:
The 1.3:1 rocker ratio increases valve lift, valve acceleration, and duration. This results in better airflow and more power at higher RPMs, making it ideal for performance engines and aggressive camshaft setups. It’s particularly beneficial for high-lift cams and engines with high-performance needs.


Q2: Are these rockers compatible with all Honda engines?

A2:
These rockers are designed for Non-Hemi Honda, Clone, Tillotson, and Predator Cylinder Heads. They are not compatible with Hemi-style heads. Always verify the engine type and cylinder head model before purchasing to ensure compatibility.


Q3: What are the benefits of the needle bearings in these rockers?

A3:
Needle bearings reduce friction and wear at the rocker arm pivot point, which increases the durability and longevity of the rockers. They help prevent rocker arm seizure during dry starts and improve the smooth operation of the valve train, especially at high RPMs. It’s important to properly lubricate the valve train during installation for optimal performance.


Q4: Do I need to use lash caps with these rockers?

A4:
While lash caps are not required for most applications, they can be used with titanium valves to prevent galling. If you are using stainless steel valves, lash caps are generally not needed, as these valves have stronger, hardened tips. The larger roller tip on these rockers provides extra clearance for retainer use in high-lift cam setups.


Q5: Can these rockers be used in go-karts or mini bikes?

A5:
Yes! The EC 1.3 Billet Aluminum Ratio Rockers are perfect for racing go-karts, mini bikes, and other small engine builds where high RPM stability and improved valve train geometry are crucial. These rockers are specifically designed to handle aggressive racing setups.


Q6: Do I need to adjust the spring pressure when using these rockers?

A6:
Yes, using the 1.3:1 rocker ratio will increase the valve lift, acceleration, and duration, which may require increased spring pressure. Check your cam's specifications for recommended seat pressure based on the size and weight of your valves. It’s important to match the right spring pressure to ensure optimal performance and valve sealing.

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