Cloyes 9-1138 Engine Timing Set

Cloyes 9-1138 Engine Timing Set

The Cloyes 9-1138 engine timing set is built for Ford and Mercury street applications that need accurate cam timing and durable chain drive components. It combines a billet crankshaft sprocket with three keyways for +/- 4 degrees of adjustability and a heat-treated crank sprocket for added durability.

With a double roller TRUE roller chain and metal sprockets, this timing set is a practical choice for Ford F-150, Mustang, Bronco, Explorer, and related V8 applications where timing stability matters. The 9-1138 is also cross-referenced to 201138 for the same application.

Key Features

• Billet crankshaft sprocket with three keyways for +/- 4 degrees of adjustability
• Heat-treated crankshaft sprocket for durability
• Double roller TRUE roller timing chain with 0.250" roller diameter to reduce friction
• Metal camshaft sprocket and steel crankshaft sprocket
• Keyway adjustable design for cam timing correction
• Performance-grade timing set with sprockets included
• No tensioner included

Detailed Description

Cloyes 9-1138 is an engine timing set designed around a double roller chain layout for street-driven Ford and Mercury V8 engines. The adjustable crank sprocket gives you timing control for advancing or retarding cam timing by up to 2 degrees at the camshaft in either direction, which is useful when dialing in engine response after rebuilds or when matching camshaft and compression changes. The TRUE roller chain design helps reduce friction while maintaining consistent timing action.

This timing set is listed for a wide range of Ford F-250, F-350, F-150, Mustang, Bronco, Explorer, and Mercury Cougar applications, along with several Lincoln and full-size Ford car and van platforms. It is a strong fitment-based search match for buyers looking for a Ford Mustang timing set, Ford F-150 engine timing set, or Ford Bronco timing chain set with adjustable keyways. Part number 9-1138 is the identifier to use when confirming application details.

What It Helps Address

• Timing chain stretch or wear that can affect cam timing accuracy
• Need for cam timing adjustment during engine setup
• Reduced timing stability in higher-mileage street engines
• Friction losses from a worn or non-roller chain setup
• Replacement of a damaged or noisy timing set

Installation Notes and Tips

Verify engine code, fuel pump eccentric style, and model-year breakpoints before installation, especially on 1972-1985 Ford and Mercury applications with late-year changes. Confirm sprocket alignment and select the correct keyway position before final assembly. Because this set does not include a tensioner, inspect related timing components and replace any worn guides or seals as needed during service.

Quality Assurance

Cloyes timing components are engineered for performance-oriented street use, with heat-treated and billet-machined parts selected for durability and repeatable timing control. Use part number 9-1138 to confirm the correct timing set for your application before installation.