For sale is an oil pressure line kit for a 1973-1977 Chevrolet/GMC Truck, Blazer, or Suburbans. This line is correct for models with the V8 or 6 Cylinder Engine. Comes with copper tubing, 3 Brass fitting and protective tubing. This line goes from the block or oil filter housing through the firewall and into the back of the oil pressure gauge. Feel free to ask questions and be sure to check my other items.