440 Six Pack Intake Manifold Torque Sequence and Specs
Since the 440 Six Pack or Six Barrel used two different intake manifolds, many questions are asked about the torque specs. There are different specs for each one. Let’s examine them. The 1969 440 Six Pack or 6-BBL aluminum intake manifold bolts are torqued to 25 foot-pounds. The 1970 and 1971 cast iron intake manifold…