Comp Ratio Help .

[KWIKR 1]

Anybody know what the following CR will be ?

TTA Pistons , GN Heads , Single Steel Shim HG =

TTA pistons , GN Heads , Double Steel Shim HG =

**Thanks**

 

[trading t/a]

Add .1 in compression for every 1 cc difference between the gn heads and TTA heads.

 

[trading t/a]

I would say around 8.0-8.3 to 1 depending on the thickness of the head gasket. Or you could have the heads milled to bring the compression back to normal.......

 

[KWIKR 1]

I was planning on two steel shim gaskets per-side .