340 Head gasket

furrystump said
Summit has a nice calculator when you look a pistons. You need to know
Bore
Stroke
Dome CC’d + or -
zero deck?
Chamber cc’s
Click to expand...
Current calculation says 9.66:1 with .039.with 028 gasket 9.92:1
Was hoping to achieve the original 10.50:1 when I did motor but inexperience and maybe mis-calculation on my part leaves me hoping 9.92:1 will bump me up a bit more.

Compression Calculator​

Get accurate compression without the guesswork!

Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you’re on your way to maximum performance.

Bore: (diameter) in. mm
Stroke: in. mm
Cylinder Head Volume: cc in.
Effective Dome Volume:
Use (-) for Dome and (+) for Dish.		 cc in.
Deck Clearance: in. mm
Compressed Gasket Thickness: in. mm
Number of Cylinders: 4 6 8 10 12
Compression Ratio :9.66 : 1
Total Displacement (in.3) :171.41
Total Displacement cc's :2810

With .028 gasket

Compression Calculator​

Get accurate compression without the guesswork!

Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you’re on your way to maximum performance.

Bore: (diameter) in. mm
Stroke: in. mm
Cylinder Head Volume: cc in.
Effective Dome Volume:
Use (-) for Dome and (+) for Dish.		 cc in.
Deck Clearance: in. mm
Compressed Gasket Thickness: in. mm
Number of Cylinders: 4 6 8 10 12
Compression Ratio :9.92 : 1
Total Displacement (in.3) :171.41
Total Displacement cc's :2810