BBTV 2M692 Engine Piston Ring

Engine Piston Ring Overview

This engine piston ring is built for classic Chrysler, Dodge, and Plymouth V8 applications that require standard bore sizing and a plasma moly top ring surface. Part number 2M692 is specified across a wide range of 1966-1978 vehicles, including Chrysler New Yorker, Dodge Charger, and Plymouth Road Runner applications.

Use 2M692 when you need a piston ring set configured for an 8-cylinder engine with standard oversize dimensions and ring materials selected for sealing and wear control. The listed fitment covers many full-size cars, performance models, vans, and pickups from the era.

Key Features

• Standard bore configuration with 4.320 in. engine bore specification
• Plasma moly top ring surface for improved ring face durability
• Steel top ring construction for strength under combustion load
• Chrome-treated first oil ring surface for added wear resistance
• Phosphate-treated second ring surface for controlled break-in characteristics
• Steel rail and stainless expander first oil ring design for oil control

Detailed Description

Part number 2M692 is an engine piston ring application for Chrysler, Dodge, and Plymouth V8 engines with standard bore dimensions. The ring package uses a steel top ring with plasma moly surface treatment, a grey iron second ring with phosphate treatment, and a first oil ring built from steel rail and stainless expander materials with chrome surface treatment. These material and finish choices support sealing, oil control, and wear management in older high-displacement engines.

Compatible vehicle coverage includes Chrysler 300, Imperial, Newport, New Yorker, and Town & Country; Dodge Charger, Coronet, Monaco, Polara, and Ramcharger; plus Plymouth Barracuda, Belvedere, Fury, GTX, Road Runner, Satellite, and Superbird. This part cross-references Febi-Bilstein 40722 for the same application.

What It Is Used For

• Restoring cylinder sealing in worn or rebuilt engines
• Reducing oil consumption caused by ring wear
• Supporting compression retention during engine overhaul
• Replacing rings with worn or heat-damaged surfaces
• Matching standard bore piston ring requirements

Installation Notes and Tips

Verify engine bore size, ring groove dimensions, and cylinder count before installation. Confirm that the ring set matches the intended engine build and inspect cylinder walls for taper, scoring, or out-of-round conditions before assembly. Proper ring end gap measurement and cylinder preparation are critical for correct sealing.

Quality Assurance

2M692 is specified with OE-style material and surface treatments for classic V8 engine applications. Review the fitment list carefully to confirm the exact Chrysler, Dodge, or Plymouth application before ordering.