Product Summary

Roller Rocker Arm Style, 1.65:1 Rocker Arm Ratio

  • 1.65 Ratio Shaft Mount Style
  • Billet Aluminum Body
  • Race Series Purple Anodized Finish
  • Hardened Shafts, Spacers, and Hardware Included
  • PROFORM Parts Brand Product
See more details

Key Specs

MFG. Part #66864
BrandProform
Rocker Arm StyleRoller
Rocker Arm Ratio1.65:1
Material TypeAluminum
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Proform 66864 Details

Take your Buick valve train to the next level of performance with a friction-reducing roller rocker system. This shaft mounted roller rocker system will fit standard stage 1 and 2 cylinder heads, and is designed for 1.65 ratio. Please note that the push rod hole may require additional clearance. Premium Race Series rockers include 16 billet aluminum roller rockers with adjusters, two shafts, and all the necessary spacers and mounting hardware.

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Proform 66864 Specifications

KEY SPECS
MFG. Part #66864
BrandProform
Rocker Arm StyleRoller
Rocker Arm Ratio1.65:1
Material TypeAluminum

Questions & Answers

Customer Impersonation Script