The Speedmaster Chevy SBC 350 1.5 Ratio Roller Rocker Arm Set (PCE261.1066.01) is a performance-grade rocker arm assembly designed for small-block Chevy 350 engines. This stainless steel roller rocker arm set features a 1.5 rocker ratio and 7/16" stud diameter, engineered to improve valve actuation efficiency and engine performance over factory rockers.
Roller rocker arms reduce friction during valve operation, enabling higher RPMs, improved valve train stability, and enhanced overall engine responsiveness. The stainless steel construction provides corrosion resistance and durability in demanding engine conditions. This set is ideal for street performance, racing, and high-revving small-block Chevy 350 builds where valve train reliability and efficiency are critical. The precise 1.5 ratio spec ensures proper valve lift and timing geometry for optimized combustion and power delivery.
Key Features & Benefits
- Stainless Steel Construction: Corrosion-resistant stainless steel material for long-lasting durability and performance.
- Roller Design: Roller-style rockers reduce friction for smoother valve actuation and higher RPM capability.
- 1.5 Rocker Ratio: Optimized ratio delivers proper valve lift and timing for SBC 350 engines.
- 7/16" Stud Diameter: Direct fitment for standard SBC 350 head stud configuration.
- Complete Arm Set: Full rocker arm assembly ready for installation on compatible Chevy small-block engines.
Specifications
| Brand | Speedmaster |
| Model/MPN | PCE261.1066.01 |
| Product Type | Roller Rocker Arm Set |
| Engine Application | Chevy SBC 350 |
| Rocker Ratio | 1.5 |
| Stud Diameter | 7/16" |
| Material | Stainless Steel |
Ideal Applications
- High-performance street engine builds and upgrades
- Racing and competition small-block Chevy 350 engines
- Engine rebuild and restoration projects requiring improved valve train performance
- Aftermarket performance modifications for enhanced RPM capability and reliability