Cloyes 9-3651X3 Engine Timing Set

Cloyes 9-3651X3 Performance Timing Set

The Cloyes 9-3651X3 engine timing set is built for performance applications that need adjustable cam timing and durable billet components. It is a fitment-based choice for select Chevrolet Camaro, Corvette, and Pontiac Firebird models, along with Buick, Cadillac, and Chevrolet full-size V8 applications from the mid-1990s.

Key Features

• Billet steel crankshaft sprocket with three keyways for +/- 4 degrees adjustability
• Steel camshaft and crankshaft sprockets for performance use
• Heat-treated billet sprockets for added durability
• Premium half-inch pitch single roller chain to reduce friction
• Includes a billet heat-treated water pump driven gear
• Hand-matched 3-piece set to help qualify center distance and minimize runout
• Keyway adjustable design with up to 2 degrees advance or 2 degrees retard at the camshaft
• Roller chain construction; tensioner not included

Detailed Description

Cloyes 9-3651X3 is a performance engine timing set engineered around billet steel sprockets and a single roller chain for controlled valvetrain timing. The three-keyway crankshaft sprocket allows timing adjustment without changing the overall set, making it a practical option for builders tuning cam timing on select 1994-1997 Chevrolet Camaro, 1994-1997 Chevrolet Corvette, and 1994-1997 Pontiac Firebird applications, as well as 1994-1996 Buick Roadmaster, Cadillac Commercial Chassis, Cadillac Fleetwood, Chevrolet Caprice, and Chevrolet Impala models. This part number, 9-3651X3, is also listed under Cloyes High Performance 9-3651X3.

What It Helps Address

• Timing chain stretch or wear in performance engine builds
• Need for cam timing adjustment during engine setup
• Runout concerns from less precise timing components
• Friction losses associated with worn chain and sprocket assemblies
• Replacement of aging timing set components in compatible V8 applications

Installation Notes and Tips

Verify engine code, timing cover clearance, and cam timing requirements before installation. Because this set uses a keyway-adjustable crankshaft sprocket, confirm the desired advance or retard setting during assembly. The set does not include a tensioner, so inspect related timing components and the water pump drive arrangement before final assembly. Professional installation and degreeing the camshaft are recommended for performance engines.

Quality Assurance

Cloyes builds this timing set with heat-treated billet steel sprockets and hand-matched components to help maintain correct center distance and reduce runout. The 9-3651X3 is a performance-grade timing set intended for builders who need durable, adjustable timing hardware in compatible Chevrolet, Pontiac, Buick, and Cadillac applications.