GM Service Manual Online
For 1990-2009 cars only

Metal Types

Specification

Metric

English

SAE J-1392-050

344,750 kPa

50,000 psi

SAE J-1392-080

551,600 kPa

80,000 psi

SAE 1027 (Heat Treated)

758,400 kPa

110,000 psi