Red Line High Performance High Zinc 10W60 Synthetic Motor Oil - 1 Quart Bottle - Set of 12 35BONUS 814" inside diameter are used

814" inside diameter are used to equalize the installed height of valve springs

Clear / Black

11/16 in 12 Point Head

1988-1991 Pontiac 6000

Red Line High Performance High Zinc 10W60 Synthetic Motor Oil - 1 Quart Bottle - Set of 12 35BONUS 814" inside diameter are usedProduct Description: Motor Oil High Performance High Zinc 10W60 Synthetic 1 qt Bottle Set of 12 In 1979, Red Line Synthetic Oil began creating lubricants for the racing industry. Today, we manufacture more than 100 quality products, including motor oils, gear oils, assembly lubes, fuel additives and our popular WaterWetter cooling additive for the automotive, motorcycle, marine and industrial markets. Using cutting edge technology, Red Line responds