Y2K_WS6_T/A

I thought it was Stroke X Bore X 3.14 X # of Cylinders?


What is Stock Stroke/Bore?

RyanJ

http://www.prestage.com/carmath/calc_cid.asp

or the old fashioned way. its something like:

(PI/4)*(Bore^2)*(Stroke)* 8(# of cyl)

Ryan

1CAMWNDR

iTrader: (21)

Stock bore is 3.9"
Stock stroke is 3.62"

The formula I use is an old one.
First find the area of a cylinder: pi( 3.1416) times the radius squared, times the length of stroke.
Then multiply that by 8 for the # of cylinders.
For a stock motor it would look something like:
(Radius for a stock 3.9" bore is 1.95)
1.95 X 1.95 = 3.8025
3.8025 X 3.1416 = 11.945934
11.945934 X 3.62(Stroke) = 43.24428108
43.24428108 X 8(# of cylinders) = 345.95424864"
<img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" />

Y2K_WS6_T/A

Anyone have the Stroke/Bore on a 6.0L Iron Block Motor? <img src="gr_images/icons/wink.gif" border="0">

Pro Stock John

iTrader: (34)

Well it would be 3.62 stroke x 4.00 bore =363.92 right?

Using Ryan's link here's my specs...

4.060 bore x 4.075 stroke =422.05ci... so it works. <img src="gr_stretch.gif" border="0">

kewlbrz

You can break down the geometry of it, or do it the easy way:

Bore^2 x Stroke x .7854 x #cylinders = displacement in ci.