Compression Ratio, Will I be able to tell the difference? Options

[sdoolin]

Rebuilding(ish) my 2056. On my first build I was able to achieve a compression ratio of very nearly 9.0:1. With this build, I am having to add .020 spacers below the jugs to get any measurable deck height in the jugs. I am calculating a compression ratio of 8.6:1.

Will I notice the loss in compression ratio?

[Superhawk996]

I’m going to ask a question that I’ve assumed you already have done.

Did you use assembly lube on all bearings and cam / cam lobes / lifters as you did final assembly? You shouldn’t be spinning dry waiting on oil pressure from the pump. Apologize I didn’t bring this up earlier

2nd - have you primed the oil pump gears with a light coat of petroleum grease? This helps ensure a quick prime and build of oil pressure. Again sorry I’m asking late but this is easy to do still.