Valigrunt Performance

Putting the Muscle back into Classic Cars

Stopping the 440 in the Phoenix

December 24, 2024

The 440 big block was leaking from the rear main seal and had a grumble in the bottom end.  While Shane had the sump off the Phoenix he decided to have a look at the bearings and discovered excessive wear.  We then decided to put in new bearing shells as well as replacing the rear main seal and a main stud kit to stop the leak.  Therefore leaving a 440 without the grumble.