BCBC MRK-540-1 Engine Rocker Arm Kit

Overview

This Melling rocker arm kit is a standard replacement service kit for valve train rebuilds. Part number MRK-540-1 is made in the USA and is built around a non-roller rocker arm body for stock-style applications.

Compatible with a wide range of classic GM applications, including Buick, Oldsmobile, Pontiac, Chevrolet, GMC, and Cadillac models. Fits 1977-1979 Buick Electra, N/A; Fits 1977-1979 Buick Estate Wagon, N/A; Fits 1977-1979 Buick LeSabre, N/A; Fits 1977-1979 Buick Riviera, N/A; Fits 1979 Cadillac DeVille, N/A; Fits 1979 Cadillac Eldorado, N/A; Fits 1979 Cadillac Fleetwood, N/A; Fits 1976-1979 Cadillac Seville, N/A; Fits 1978-1979 Chevrolet C10, N/A; Fits 1978-1979 Chevrolet C10 Suburban, N/A; Fits 1979 GMC C1500, N/A; Fits 1979 GMC C1500 Suburban, N/A; Fits 1965-1979 Oldsmobile 98, N/A; Fits 1971-1979 Oldsmobile Custom Cruiser, N/A; Fits 1965-1979 Oldsmobile Cutlass, N/A; Fits 1978-1979 Oldsmobile Cutlass Calais, N/A; Fits 1975-1979 Oldsmobile Cutlass Salon, N/A; Fits 1968-1979 Oldsmobile Cutlass Supreme, N/A; Fits 1965-1979 Oldsmobile Delta 88, N/A; Fits 1966-1979 Oldsmobile Toronado, N/A; Fits 1977-1979 Pontiac Bonneville, N/A; Fits 1977-1979 Pontiac Catalina, N/A; Fits 1977-1979 Pontiac Firebird, N/A; Fits 1978 Pontiac C30, N/A; Fits 1978 GMC C15, N/A; Fits 1978 GMC C15 Suburban, N/A; Fits 1977-1978 Pontiac Grand Safari, N/A; Fits 1977 Buick Century, N/A; Fits 1977 Buick Regal, N/A; Fits 1975-1977 Buick Skylark, N/A; Fits 1975-1977 Oldsmobile Omega, N/A; Fits 1976-1977 Pontiac Grand LeMans, N/A; Fits 1977 Pontiac Grand Prix, N/A; Fits 1977 Pontiac Laurentian, N/A; Fits 1976-1977 Pontiac LeMans, N/A; Fits 1977 Pontiac Phoenix, N/A; Fits 1975-1977 Pontiac Ventura, N/A; Fits 1976 Oldsmobile Cutlass Tiara, N/A; Fits 1975 Buick Apollo, N/A; Fits 1966-1975 Oldsmobile Vista Cruiser, N/A; Fits 1965-1972 Oldsmobile F85, N/A; Fits 1965-1971 Oldsmobile 442, N/A; Fits 1967-1968 Oldsmobile Delmont 88, N/A; Fits 1965-1966 Oldsmobile Dynamic 88, N/A; Fits 1966 Oldsmobile Jetstar 88, N/A; Fits 1965-1966 Oldsmobile Starfire, N/A; Fits 1965 Oldsmobile Jetstar I, N/A.

Key Features

• Standard replacement rocker arm kit for engine service work
• Non-roller rocker arm body type for stock-style valve train setups
• Made in the USA
• Part number MRK-540-1 for easy identification

Detailed Description

MRK-540-1 is a Melling engine rocker arm kit intended for valve train rebuilds where the rocker arm, fulcrum, bolt, and stud combination must match the engine application. The Stock product line focuses on replacement parts for service use, and this kit follows that approach with a standard replacement design and non-roller construction. It is a direct fit for many classic Buick, Oldsmobile, Pontiac, Chevrolet, GMC, and Cadillac applications, including the Buick Skylark, Oldsmobile Cutlass, and Pontiac Firebird.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Solve

• Worn rocker arm components in a valve train rebuild
• Incorrect rocker arm, fulcrum, bolt, or stud combinations
• Stock-style replacement needs for classic GM engines
• Service issues tied to mismatched engine hardware

Installation Notes

Verify engine application before installation and match the rocker arm, fulcrum, bolt, and stud combination to the engine build. Follow factory service procedures for valve train setup and adjustment. This kit does not list mounting studs or mounting bolts as included in the attributes, so confirm the required hardware before beginning the job.

Quality Assurance

Melling states that this rocker arm kit is made in the USA and supplied as a standard replacement service part for engine rebuilds. Part number MRK-540-1 is supported by application-specific fitment data for classic GM vehicles.