HI LIFT ROLLER ROCKERS 1.3 RATIO – WP25087

HI LIFT ROLLER ROCKERS 1.3 RATIO – WP25087

1.3:1 Hi Lift Roller Rockers. A 1.3:1 billet roller tip rocker assembly is an upgraded version of the standard A series rocker gear. The ratio (1.3:1) determines how much valve lift you get relative to cam lift. This ratio is only slightly higher than stock, making it a mild, reliable performance enhancement. Benefits include:

• Reduced friction at the valve tip thanks to the roller wheel.
• More consistent valve lift across cylinders, improving breathing efficiency.
• Less side loading on valve stems, which helps extend guide life.
• Smoother, quieter valvetrain operation due to improved geometry and materials.
• A modest performance increase — typically noticeable but not dramatic.
• Direct bolt on upgrade for most A series heads

Made in the UK and a massive improvement over the original CAM289