The AAM Group 2540S Timing Gear Set for GM 250 6-Cylinder Engines

The AAM Group 2540S is a matched timing gear set designed for GM 250 (4.1L) 6-cylinder engines. This high-quality timing gear assembly ensures precise camshaft and crankshaft synchronization for reliable engine performance.

Key Features:

• 1.80 ratio alloy gear assembly construction
• Matched timing gear set for optimal engine timing accuracy
• Includes aluminum cam gear (component #2526 3882893) and crank gear (component #2541 362758)
• Designed specifically for GM 250 inline-6 applications
• Direct replacement for worn or damaged timing gears

Application Compatibility:

• Chevrolet 4.1L 6-cylinder 250 engines (1976-1979) with intake manifold cast as integral part of head
• Chevrolet Truck 4.1L 6-cylinder 250 Light Duty engines (1976-1983)
• Oldsmobile 4.1L 6-cylinder 250 engines (Late 1976+) with cam gear stamped 20 on gear hub
• Pontiac 4.1L 6-cylinder 250 engines (1977-1979) with cam gear stamped 20 on gear hub

This timing gear set provides a reliable solution for engine rebuilds and timing system restoration on classic GM inline-6 engines.