One Cylinder Higher Compression Than Others?

[aspekt9]

So I did a compression test on the new build. After about 900 miles it stands at:

180 180 180 188

Why would the number 4 cylinder have higher compression? I'm using 2g pistons on 1g rods with an MLS and 272/272 cams. Is this something to be concerned about?

 

[GRAVEDIGGER]

Nah... Nothing to worry about. You will almost always have some variance across the cylinders and almost never get the same results in each cylinder. I wouldn't think twice about it.

 

[luv2rallye]

14 psi difference between all cylinders is within spec.

 

[tazndrew04]

only thing id be worried about is if it goes below 140 than id worry

 

[SHaman]

been told 10 percent variance. Some people would be really happy with your numbers

 

[1g_brandon]

180 is reall good numbers. ya i think in the manualls its within 10 psi below or above that they must be from each other. but seriously sounds like a healthy engine.