Skip to content
Enhance engine performance with precision machined roller rocker arms.
Proform Parts offers a set of roller rocker arms designed for Oldsmobile 350-455 engines. These rocker arms feature a 7/16 inch stud diameter and a 1.6 ratio, providing a significant reduction in internal friction. The roller tipped design, combined with full needle bearings, ensures optimal performance by increasing horsepower while extending the life of valve train components.
Constructed from extruded aluminum, these non-self aligning rocker arms are precision machined to guarantee consistency and accuracy in ratio. The set includes 16 rocker arms, making it a comprehensive solution for enhancing engine efficiency. The use of polylock nuts further secures the installation, ensuring reliable operation under various conditions.
Features
- Precision Machined To Insure Consistency And Ratio Accuracy
- The Race Proven Full Needle Bearing, Fulcrum And Roller Tip Not Only Unleash Horsepower, They Also Lengthen Valve Train Component Life And Reduce Wear And Tear On Valve Stem Tips
Specifications
- Manufacturer: Proform Parts
- Manufacturer Part Number: 66860C
- Compatibility: Oldsmobile 350-455
- Stud Diameter: 7/16 Inch
- Ratio: 1.6
- Body Construction: Extruded Aluminum
- Mount Type: Stud Mount
- Roller Tip: Yes
- Roller Pivot: Yes
- Nut Style: Polylock
- Offset: No Offset
- Self Aligning: No
- Quantity: Set Of 16
Compatibility / Fit
- 1964-1971 Oldsmobile 442
- 1957-1957 Oldsmobile 88
- 1957-1984 Oldsmobile 98
- 1961-1961 Oldsmobile Classic 98
- 1971-1985 Oldsmobile Custom Cruiser
- 1992-1992 Oldsmobile Custom Cruiser
- 1964-1981 Oldsmobile Cutlass
- 1979-1984 Oldsmobile Cutlass Calais
- 1980-1983 Oldsmobile Cutlass Cruiser
- 1975-1977 Oldsmobile Cutlass Salon
- 1979-1980 Oldsmobile Cutlass Salon
- 1985-1985 Oldsmobile Cutlass Salon
- 1967-1985 Oldsmobile Cutlass Supreme
- 1976-1976 Oldsmobile Cutlass Tiara
- 1967-1968 Oldsmobile Delmont 88
- 1965-1985 Oldsmobile Delta 88
- 1958-1966 Oldsmobile Dynamic 88
- 1964-1972 Oldsmobile F85
- 1957-1964 Oldsmobile Fiesta
- 1957-1957 Oldsmobile Golden Rocket 88
- 1964-1966 Oldsmobile Jetstar 88
- 1964-1965 Oldsmobile Jetstar I
- 1973-1979 Oldsmobile Omega
- 1957-1957 Oldsmobile Starfire
- 1961-1966 Oldsmobile Starfire
- 1957-1964 Oldsmobile Super 88
- 1966-1985 Oldsmobile Toronado
- 1900-1900 Oldsmobile V8 260-455
- 1964-1975 Oldsmobile Vista Cruiser
Product Videos
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
