Weiand Pro-Street Driven Serpentine Pulleys WM6890 Safety Equipment In 1987 GM equipped the

In 1987 GM equipped the Chevy Small Block V8 with roller lifters / provisions for roller lifters

000psi Tensile Strength

Color Coded By Installed Height

200-20-1MBLK

Range: Lean-Rich C2 SERIES 2-1/16" AIR/FUEL Will work with most factory narrow-band O2 sensors

Weiand Pro-Street Driven Serpentine Pulleys WM6890 Safety Equipment In 1987 GM equipped theWeiand Pro Street Driven Serpentine Pulleys10 Rib, 2. 85" WM6890 6890 Weiand 10 Rib Pro Street drive upper pullley 2. 85" Weiand developed the first ever aluminium intake manifold in 1937. Thirty years later Weiand developed complete blower drives for the GMC 6 71 supercharger. Today, Weiand is still at the forefront of intake manifold and blower development as well as high flow water pumps. To make more power you have to get more air to your engine.