BBTV 693 Engine Piston Ring

Engine Piston Ring Set for AMC and Jeep

This engine piston ring set is built for standard-bore V8 applications with a 4.080-inch bore. It is listed for American Motors and Jeep vehicles from the early 1970s, including AMC Ambassador, Hornet, Matador, AMX, and Rebel, plus Jeep Cherokee, J10, J20, Wagoneer, J-2500, and J-2600 applications.

Key Features

• Standard bore sizing with no oversize machining required.
• Top ring and second ring use grey iron construction for consistent sealing.
• Top ring and second ring phosphate surface treatment for added wear resistance.
• First oil ring uses steel with a chrome surface treatment.
• Designed for 8-cylinder engines with a 4.080-inch bore diameter.

Detailed Description

Part number 693 is an engine piston ring set for compatible AMC and Jeep V8 engine applications. The ring package uses a grey iron top ring and second ring, with phosphate surface treatment on both, while the first oil ring is steel with a chrome finish. The standard 4.080-inch bore specification and 8-cylinder configuration make this a direct match for the listed engine applications. Part number 693 is a practical choice for rebuilds where ring material, groove sizing, and bore accuracy matter.

What It Is Used For

• Restoring cylinder sealing in worn or rebuilt engines.
• Controlling oil consumption caused by ring wear.
• Supporting compression recovery in high-mileage engines.
• Replacing damaged or fatigued piston rings during engine overhaul.

Installation Notes and Tips

Verify cylinder bore size before installation and confirm the engine remains at standard bore. Match the ring set to the correct groove dimensions: 5/64 for the top and second rings, and 3/16 for the oil ring. Clean the ring lands thoroughly and inspect cylinder walls for taper or scoring before assembly. Confirm fitment against the vehicle and engine build details for AMC Ambassador, Hornet, Matador, and Jeep applications before final installation.

Quality Assurance

This part is specified with standard-bore dimensions and material details that support accurate engine rebuilding. Use the listed fitment and bore measurements to confirm application before assembly.