AEM was the first company to manufacture adjustable cam gears for the sport compact market. Our Tru-Time Adjustable Cam Gears are used by top racing teams across the country and are a must for engines that are milled, forced induction, high compression and/or utilizing aftermarket competition cams. Our gears enable users to match cam timing with their vehicle's tuning state by advancing or retarding the cam profile in one-degree increments via true laser-etched markings. Precision-cut gear teeth ensure no premature wearing of the belt surface and AEM's anodizing on the gear teeth is lab-test proven to be the hardest anodizing process on the market. Special Features Increases horsepower and torque without any cam changes, and ideal for heavily modified engines Grade-8, six-point hex bolts stand up to repeated adjustments and feature integral washer flange that eliminates any chance of slippage CNC-machined from 6061-T6 billet aluminum True laser-etched markings on the leading edge of the gear allow for quick, accurate adjustments Hard anodizing on belt surface is the most durable anodizing on the market. Comprehensive installation instructions, recommended cam gear settings and decals included Manufactured and assembled in the USA .

Cam gears sold individually.
DOHC applications require purchase of two(2) cam gears.
** A one-time purchase of 23-670T is required for focus cam gear installations.