Compression Problems 426 Hemi

[72 cuda]

Just checked the compression on my 426 Hemi. Drivers side each cylinder is about 150.
The passenger side each cylinder is 115. Big difference especially since the engine has just been done and has less than 100 miles on it. Any suggestions on what might be the problem or cause.

 

[6packcuda]

Hmmm. That's interesting. I would try a cylinder leakage test next. That will give you an idea of where the compression is going.

 

[LXguy]

Valve lash too tight on one side?

Leakdown will help a lot.

 

[72 cuda]

Just found out after removing the push rods that they are too long. The wrong ones were installed causing the valves not to close. We are in the process of getting the correct ones. Will keep you posted