The Enginetech ERK890 is a rocker arm kit engineered as a stock replacement for 1964-1979 Buick, Cadillac, Oldsmobile, Pontiac engine applications.
Important Notes
- Direct OEM-specification replacement rocker arm.
Specifications
| Brand | Enginetech |
| Part Number | ERK890 |
| Product Type | Rocker Arm Kit |
| Quantity per Pack | 1 |
| Country of Origin | United States |
| OEM / Aftermarket Cross References | Melling:MRK-540-1 |
Vehicle Fitment
- Years: 1964-1979
- Makes: Buick, Cadillac, Oldsmobile, Pontiac
- Models: 442, 98, Apollo, Bonneville, Catalina, Century, Custom Cruiser, Cutlass, Cutlass Calais, Cutlass Salon, Cutlass Supreme, Cutlass Tiara, Delmont 88, Delta 88, Dynamic 88, Eldorado, Electra, Estate Wagon, F85, Firebird, Grand LeMans, Grand Prix, Grand Safari, Jetstar 88, Jetstar I, and more
Rocker arms are a critical valvetrain component, transferring motion from the camshaft or pushrod to the valve stem to open the intake and exhaust valves in precise time with crankshaft rotation. Wear, pitting, or pivot failure in even a single rocker arm disrupts valve timing and lift, causing lost compression, misfires, and accelerated guide and seat wear. Replacing rocker arms during a top-end or full engine rebuild - alongside pushrods, retainers, valve springs, and valve seals - restores correct valvetrain geometry and avoids the compounding tolerance stack that shortens a fresh rebuild's service life.
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or reproductive harm, including lead and nickel.
