Cloyes 9-3659X3Z Engine Timing Set

Cloyes 9-3659X3Z Timing Set for GM V8 Applications

The Cloyes 9-3659X3Z engine timing set is built for specific GM applications that need precise cam timing control and durable chain drive components. It combines billet steel sprockets, a double roller "Z" chain, and a keyway-adjustable crank sprocket for accurate setup on performance and street-driven engines.

Key Features

• Billet crankshaft sprocket with three keyways for +/- 4 degrees of timing adjustment
• Heat-treated billet steel sprockets for added durability
• Double roller TRUE Roller 0.250" "Z" chain for reduced friction
• "Z" chain construction with increased strength over standard high-performance chain designs
• Press-fit center link design to improve load distribution and fatigue life
• Captured needle camshaft sprocket thrust bearing to reduce block thrust surface friction
• 3-piece set hand-matched to help qualify center distance and minimize runout

Detailed Description

This Cloyes timing set, part number 9-3659X3Z, is engineered for specific Chevrolet, GMC, Cadillac, Buick, Pontiac, Saab, Hummer, and Isuzu applications from 1999-2007. It is a specific-fit engine timing set with a double roller chain design and adjustable crank sprocket indexing, making it a practical choice for builders who need controlled cam timing and consistent chain geometry. The included captured needle bearing at the cam sprocket helps reduce thrust surface friction, while the hand-matched 3-piece construction supports accurate fitment and reduced runout. This part cross-references 93659X3Z for the same application.

What It Helps Address

• Timing chain stretch and inconsistent valve timing
• Excess friction in the timing drive system
• Need for cam timing adjustment during engine setup
• Wear at the cam sprocket thrust surface
• Runout concerns in a worn or mismatched timing set

Installation Notes and Fitment

Compatible With specific GM V8 applications. Fits 1999-2007 Chevrolet Silverado 1500, N/A; Fits 2000-2007 Chevrolet Tahoe, N/A; Fits 2005-2007 Chevrolet Corvette, N/A; Fits 2000-2007 GMC Yukon, N/A; Fits 2002-2006 Cadillac Escalade, N/A; Fits 2005-2007 Pontiac Grand Prix, N/A. Additional fitments include Chevrolet Avalanche, Suburban, Express, Trailblazer, GMC Sierra, Savana, Envoy, Yukon XL, Hummer H2, Saab 9-7x, and others listed for the same application family. For reduced-length chain options, add -5 or -10 to the end of the part number when ordering. Verify engine configuration and timing cover clearance before installation.

Quality Assurance

Cloyes manufactures this timing set with heat-treated billet steel components, a pre-stressed chain design, and hand-matched assembly to support consistent fit and durability in demanding engine applications.