Cloyes 9-3658TX3 Engine Timing Set

Cloyes 9-3658TX3 Engine Timing Set

The Cloyes 9-3658TX3 engine timing set is built for performance applications that demand precise camshaft and crankshaft synchronization. It uses billet steel sprockets, a true roller chain, and a keyway-adjustable crank sprocket to support accurate timing setup on a wide range of GM V8 and V6 platforms.

Compatible With Chevrolet Corvette, Silverado, Tahoe, Trailblazer, GMC Sierra, Yukon, Cadillac CTS, Pontiac GTO, and related applications listed below.

• Billet steel camshaft and crankshaft sprockets for durability
• Three-keyway crankshaft sprocket with +/- 4 degrees adjustability
• Single roller chain with 0.250" roller diameter for reduced friction
• Captured needle camshaft sprocket thrust bearing to reduce block thrust surface friction
• Hand-matched 3-piece set to help qualify center distance and minimize runout
• Performance-grade timing set with sprockets included

Detailed Product Overview

This Cloyes timing set is engineered around a steel-on-steel sprocket design and a roller chain layout for stable timing control under performance use. The adjustable crankshaft sprocket provides timing correction through three keyways, with up to 2 degrees advance or 2 degrees retard at the camshaft. The captured needle bearing at the cam sprocket reduces thrust surface friction, while the hand-matched set helps maintain proper center distance and runout control during assembly. Part number 9-3658TX3 is a direct fit for many 1997-2007 GM truck, SUV, and performance car applications, including Chevrolet Corvette and GMC Sierra platforms.

What This Timing Set Helps Address

• Timing chain stretch and inconsistent cam timing
• Excess friction in the timing drive
• Need for cam timing adjustment during engine setup
• Wear at the camshaft sprocket thrust surface
• Runout and center-distance variation in performance builds

Installation Notes and Tips

Verify engine code, sensor hub configuration, and sprocket alignment before installation. This set does not include a tensioner. Because the crank sprocket is keyway adjustable, confirm the desired timing position during assembly and check cam timing with the engine at top dead center. For best results, inspect the chain path, guides, and related timing components before reassembly. Part number 9-3658TX3 is also referenced as 93658TX3.

Quality Assurance

Cloyes uses heat-treated billet steel sprockets and a hand-matched set process to support consistent fit and reduced runout in performance timing applications. The captured needle bearing design adds another layer of control at the cam sprocket thrust interface.

• Fits 1997-2007 Chevrolet Corvette, N/A
• Fits 1998-2002 Chevrolet Camaro, N/A
• Fits 1999-2007 Chevrolet Silverado 1500, N/A
• Fits 1999-2007 Chevrolet Silverado 2500, N/A
• Fits 2000-2007 Chevrolet Tahoe, N/A
• Fits 2000-2007 Chevrolet Suburban 1500, N/A
• Fits 2000-2007 Chevrolet Suburban 2500, N/A
• Fits 2000-2007 GMC Yukon, N/A
• Fits 2000-2007 GMC Yukon XL 1500, N/A
• Fits 2000-2007 GMC Yukon XL 2500, N/A
• Fits 2001-2007 Chevrolet Silverado 2500 HD, N/A
• Fits 2001-2007 GMC Sierra 2500 HD, N/A
• Fits 2001-2006 Chevrolet Silverado 3500, N/A
• Fits 2001-2006 GMC Sierra 3500, N/A
• Fits 2002-2006 Cadillac Escalade, N/A
• Fits 2002-2006 Chevrolet Avalanche 1500, N/A
• Fits 2003-2006 Chevrolet SSR, N/A
• Fits 2003-2006 Chevrolet Trailblazer EXT, N/A
• Fits 2003-2006 GMC Envoy XL, N/A
• Fits 2003-2006 GMC Sierra 1500 HD, N/A
• Fits 2003-2006 Isuzu Ascender, N/A
• Fits 2004-2006 Pontiac GTO, N/A
• Fits 2004-2005 GMC Envoy XUV, N/A
• Fits 2004-2007 Buick Rainier, N/A
• Fits 2005-2006 Chevrolet Silverado 1500 HD, N/A
• Fits 2005-2007 GMC Envoy, N/A
• Fits 2005-2007 Pontiac Grand Prix, N/A
• Fits 2005-2007 Saab 9-7x, N/A
• Fits 2006-2007 Cadillac CTS, N/A
• Fits 2006-2007 Chevrolet Impala, N/A
• Fits 2006-2007 Chevrolet Monte Carlo, N/A
• Fits 2006-2007 Chevrolet Trailblazer, N/A
• Fits 2007 Chevrolet Avalanche, N/A
• Fits 2007 Chevrolet Express 1500, N/A
• Fits 2007 Chevrolet Express 2500, N/A
• Fits 2007 Chevrolet Express 3500, N/A
• Fits 2007 Chevrolet Silverado 1500 Classic, N/A
• Fits 2007 Chevrolet Silverado 1500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 2500 HD Classic, N/A
• Fits 2007 Chevrolet Silverado 3500 Classic, N/A
• Fits 2007 Chevrolet Silverado 3500 HD, N/A
• Fits 2007 GMC Savana 1500, N/A
• Fits 2007 GMC Savana 2500, N/A
• Fits 2007 GMC Savana 3500, N/A
• Fits 2007 GMC Sierra, N/A
• Fits 2007 GMC Sierra 1500 Classic, N/A
• Fits 2007 GMC Sierra 1500 HD Classic, N/A
• Fits 2007 GMC Sierra 2500 HD Classic, N/A
• Fits 2007 GMC Sierra 3500 Classic, N/A
• Fits 2007 GMC Sierra 3500 HD, N/A