"Bowling's Compression Ratio Calculator
Input Parameters Are the Following:
Cylinder head Volume (CC) = 53.10
Piston Top Volume (CC) = 0.00
Cylinder Bore (Inches) = 4.0
Cylinder Stroke (Inches) = 3.48
Deck Height (Inches) = 0.025
Head Gasket Thickness (Inches) = 0.026
Computation Results:
Computed Compression Ratio is 12.3 to 1"

is that right? seems a little high to me! prolly because i dont know the piston volume.....
what is the piston top volume with a stock short block LT1?
do i have the deck height correct also, stock short block?

Steve

calculator can be found here https://www.camaroz28.com/calcs/index.shtml

 

any insight?

 

Piston Top Volume (CC) = 7.00

Example-
Cylinder head Volume (CC) = 54.00
Piston Top Volume (CC) = 7.00
Cylinder Bore (Inches) = 4.0
Cylinder Stroke (Inches) = 3.48
Deck Height (Inches) = 0.025
Head Gasket Thickness (Inches) = 0.049
Computation Results:
Computed Compression Ratio is 10.4 to 1

 

thanks Ken, that makes a big difference. puts me at 11.1-1