
AEM Tru-Time adjustable cam gears enable an engine's cam timing to match its tuning state, whether it is stock, modified, forced-induction or normally-aspirated. These cam gears are used by top race teams throughout the world and are a must for applications where the cylinder head or block is milled or where aftermarket or reground camshafts are installed. Our gears are the most durable on the market—we have cam gears on high performance engines that have run 100,000 miles with no wearing of the belt or belt surface. AEM cam gears feature true laser-etched markings and precision cut gear teeth that are guaranteed to match the Original Equipment (O.E.) drive tooth profile. Each kit includes comprehensive installation instructions, recommended cam gear settings and AEM decals.

All new Grade-8, six-point hex bolts replace our previous allen-style bolts. These bolts are more durable when repeated adjustments are necessary and feature an integral washer flange for greater load distribution.

AEM.s new hard-anodizing on the outer edge of the gear (right) is 40% harder than our previous anodizing process. This new anodizing procedure offers superior wear characteristics and features a titanium-look finish. Our precision-cut gear teeth are guaranteed to match the O.E. tooth profile.

The AEM Drag Civic's cams are tuned with AEM Tru-Time adjustable cam gears!