The Speedmaster Mopar Chrysler SB 318 340 360 Roller Rocker Arm Set is a premium stainless steel roller rocker arm assembly engineered for small-block Mopar engines. This 1.5 ratio set is designed to replace stock rocker arms and optimize valve timing and lift characteristics for improved engine performance and reliability.
Constructed from durable stainless steel, this roller rocker arm set reduces friction at the valve train, enabling smoother operation and enhanced engine efficiency. The 1.5 ratio specification is compatible with Chrysler SB applications including 318, 340, and 360 cubic inch displacement engines, making it an ideal upgrade for engine rebuilds, performance modifications, and restoration projects. The roller design minimizes wear on pushrods and valve stems while supporting increased durability under demanding driving conditions.
Key Features & Benefits
- 1.5 Ratio Design: Engineered 1.5 ratio rocker arm geometry optimizes valve lift and timing for Mopar small-block engines.
- Stainless Steel Construction: Premium stainless steel material provides corrosion resistance and extended service life.
- Roller Design: Roller rocker arms reduce friction at the valve train for improved engine performance and reliability.
- Multi-Engine Compatibility: Direct fit for Chrysler SB 318, 340, and 360 cubic inch displacement engines.
- Complete Set: Full rocker arm assembly set ready for installation on compatible Mopar small-block applications.
Specifications
| Brand | Speedmaster |
| MPN | PCE261.1084.03 |
| Product Type | Roller Rocker Arm Set |
| Engine Compatibility | Mopar Chrysler SB 318, 340, 360 |
| Rocker Ratio | 1.5 |
| Material | Stainless Steel |
Ideal Applications
- Engine rebuilds and restorations for Chrysler small-block applications
- Performance upgrades to increase valve train efficiency and durability
- High-mileage engine repairs requiring valve train component replacement
- Custom engine builds and modifications for improved combustion control