Engine Deck Height Calculation

Engine Deck Height Calculation

How to calculate Deck Height in CC's

the inch system

Forumla - Bore (in.) X Bore (in.m) X Stroke (in.) X 12.87 = Deck in CC
Example - 90.5mm = 3.563" X 3.563" X .060" X 12.87 = 9.80cc
1mm = .03937

or the Mm system

Forumla - Bore (mm) X Bore (mm) X Deck Height (in.) X .01996 = Deck in CC
Example - 90.5 X 90.5 X .060" X .01996 = 9.80cc

Deck
Piston - Deck Height in CC's 
85.5
87
88
90
90.5
92
94
.030
4.36
4.51
4.62
4.83
4.88
5.04
5.27
.035
5.16
5.34
5.47
5.72
5.78
5.97
6.24
 .040
5.79
6.00
6.13
6.42
6.49
6.71
7.00
 .045
6.71
6.95
7.11
7.43
7.52
7.77
8.11
 .050
7.28
7.54
7.72
8.07
8.16
8.43
8.80
 .055
8.03
8.31
8.51
8.90
9.00
9.30
9.71
.060
8.72
9.03
9.24
9.66
9.77
10.09
10.54
.065
9.46
9.80
10.03
10.49
10.60
10.96
11.44
 .070
10.15
10.51
10.75
11.25
11.37
11.76
12.27
.075
10.90
11.28
11.55
12.08
12.21
12.62
13.17
.080
11.64
12.06
12.34
12.90
13.05
13.48
14.08
.085
12.33
12.77
13.06
13.76
13.82
14.28
14.91
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