The 585G gear drive camshaft kit is designed for 88, 96, 103 and 110 cubic-inch engines with compression ratios from 10.0:1 to 10.5:1. It reverses the rear cam's direction of rotation to provide additional operating clearance between cam lobes, enabling higher cam lifts while increasing valve timing accuracy by eliminating chain lash and the loosely fit stock chain drive. 🇺🇸
Overview:
- Reverses rear cam rotation to create extra clearance for higher lifts.
- Eliminates chain lash for more consistent valve timing compared to stock chain drive.
- Operational rpm: 3500–6000 rpm for 88"–103" engines; 2500–5500 rpm for larger engines.
- Kit contents: camshafts, inner gears, outer gears, inner bearings, outer bearings, gasket and instructions.
- Installation requires removal of material from the inner surface of the stock gear cover.
- A hydraulic press and professional-level tools are required for installation. ⚙️🔧
- Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance during installation.
- Cam bearings and gaskets must be replaced when installing new cams.
- Due to gear drive characteristics, increased valve-train noise may occur.
Professional installation is strongly recommended. The kit improves timing precision and allows higher lift profiles, but it requires careful clearance checks and proper tooling. Made in the USA. 🇺🇸
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