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The Harland Sharp Roller Rocker Kit with a 1.6:1 ratio is designed for 1964-1991 Chrysler small-block LA engines, including 273, 318, 340, and 360 models equipped with factory cylinder heads. This kit enhances engine performance by providing precise valve actuation, which is particularly beneficial for high-lift camshaft applications.

Constructed with heavy-duty needle bearings, the rockers facilitate improved oil flow, ensuring optimal lubrication and reducing friction. To maintain adequate oil pressure, the use of oil restrictors may be necessary. The design accommodates valve springs up to 1.500 inches in diameter and camshafts with lifts up to 0.900 inches. It's important to note that these rockers require valves that are approximately 0.100 to 0.150 inches taller than standard to achieve correct geometry. Rocker shafts are drilled to allow for 3/8-inch mounting hardware, and the rocker spring clearance is limited to 1.500 inches.

This kit is suitable for applications requiring taller valves and is compatible with factory-style pushrods. For optimal performance, ensure that the pushrod length is adjusted appropriately after installation.

**Product Features:**

- Compatible with 1964-1991 Chrysler small-block LA engines (273, 318, 340, 360) with factory cylinder heads

- 1.6:1 ratio for enhanced valve lift

- Heavy-duty needle bearings for improved oil flow

- Accommodates valve springs up to 1.500 inches in diameter and camshafts with lifts up to 0.900 inches

- Requires valves approximately 0.100 to 0.150 inches taller than standard

- Rocker shafts drilled for 3/8-inch mounting hardware

- Rocker spring clearance limited to 1.500 inches

Please ensure compatibility with your specific engine configuration and consult with a professional mechanic or engine builder if you have any questions regarding installation or suitability.