compression for a 1960 johnson 5.5 motor

[kingstond]

What is the correct compression for this motor?<br />Thank you for the help.

 

[Paul Moir]

Re: compression for a 1960 johnson 5.5 motor

The only specification ever published for that engine is that the two cylinders should be even within 10% of one another.<br />Very generally speaking, since guages and techniques differ so much, you should be seeing +60psi.<br /><br />Good luck!