The Speedmaster Ford 429 Boss 1.73 Ratio Aluminum Shaft Roller Rocker Arms Set (PCE261.1244.03) is a precision-engineered rocker arm assembly designed for classic Ford big-block engine applications. This roller rocker arms set features a 1.73 ratio and aluminum shaft construction, delivering improved valvetrain efficiency and durability compared to stock components.
These roller rocker arms are ideal for Ford 429 Boss engine builds, race applications, and high-performance restorations where reliable valve actuation and reduced friction are critical. The aluminum shaft design reduces weight while maintaining structural integrity, and the roller design minimizes valve train drag during extended use. Compatible with Ford 429 Boss engines, this set provides the mechanical advantage and longevity needed for both street and track applications.
Key Features & Benefits
- 1.73 Ratio Design: Provides optimized mechanical advantage for improved valve lift and engine performance.
- Aluminum Shaft Construction: Lightweight yet durable material reduces overall valvetrain mass and friction.
- Roller Rocker Arms: Roller bearings minimize friction loss during valve actuation for consistent performance.
- Ford 429 Boss Compatible: Direct fit for Ford 429 Boss engine blocks and compatible cylinder heads.
- High-Performance Rated: Built for race, restoration, and performance engine applications.
Specifications
| Brand | Speedmaster |
| Model/MPN | PCE261.1244.03 |
| Product Type | Roller Rocker Arms Set |
| Engine Application | Ford 429 Boss |
| Rocker Arm Ratio | 1.73 |
| Shaft Material | Aluminum |
| Rocker Type | Roller |
Ideal Applications
- Ford 429 Boss engine performance builds and modifications
- Classic muscle car restorations and upgrades
- High-performance street and race engine applications
- Valvetrain efficiency improvements on big-block Ford engines