Yella Terra Platinum Twin Shaft Rocker Arm Kit - SB Chevy 265-400 - 1.55 Ratio - Fits OEM , Bowtie, AFR, Dart, World, Brownfield Cylinder Heads RS007B0111W Available with patent pending multi-tether

Available with patent pending multi-tether system to enhance side to side movement

weld bung and quick release pin

120 in Wall Thickness

Reductions in torsional vibrations provide increased horsepower while improving engine durability

1982-1988 Oldsmobile Firenza

Yella Terra Platinum Twin Shaft Rocker Arm Kit - SB Chevy 265-400 - 1.55 Ratio - Fits OEM , Bowtie, AFR, Dart, World, Brownfield Cylinder Heads RS007B0111W Available with patent pending multi-tetherIntake and exhaust rockers are joined in pairs on a shaft that is 22% larger and engineered for extreme RPM. Maximum width bearings deliver greater rigidity, resistance to breakage and superior load carrying ability, eliminating the need for screw in studs, guide plates and stud girdles. Rocker arms bolt to existing 7 16" stud mountings with supplied bolts. Easy to service in the field. Sold in sets of 16. Yella Terra has been designing, developing