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
|
