Answer
$728.7\; in^3$.
Work Step by Step
Number of cylinders $n=8$.
Bore size $d=4.70\;in$.
Radius $r=\frac{d}{2}$.
$r=\frac{4.70}{2}\; in=2.35\; in$.
Stroke length $l=5.25\; in$.
The formula for displacement is:
$=\pi r^2ln$
Plug all values.
$=\pi (2.35 \;in)^2\times (5.25\;in)\times 8$
Simplify (rounded value).
$=728.7\; in^3$.