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 |
