360 bored
Postmaster
Joined: Jan 2009
Posts: 4,584
Likes: 3
From: Chesapeake, Va.
The easy formula for figuring CID is;
Bore times bore, times stroke, times .7854, times number of cylinders = CID
4 inch bore X 4 inch bore= 16 X 3.5 stroke = 56 X .7854 = 439824 X 8 cyls =351.859 cid.
I hope this helps you and others that need to use this formula. It took me years to remember it as I am mathmatically challenged. I also suffer from old timers disease AKA CRS.
Bore times bore, times stroke, times .7854, times number of cylinders = CID
4 inch bore X 4 inch bore= 16 X 3.5 stroke = 56 X .7854 = 439824 X 8 cyls =351.859 cid.
I hope this helps you and others that need to use this formula. It took me years to remember it as I am mathmatically challenged. I also suffer from old timers disease AKA CRS.
Last edited by Moto Mel; Jan 30, 2009 at 02:34 PM. Reason: incomplete
Elder User
Joined: Jun 2007
Posts: 759
Likes: 0
From: Humble,Tx
Hey man just some food for thought but if you wanted to replace the entire rotating assembly you could getta Mega FE E.G. at 040 over with a 4.25" Stroke you'd have a (447.75)448Cid at 050 a (449.41)450Cid and at 060 over a (451.07)451Cid 
P.S. that rotating assembly in question that I used for those end displacements would run about $1,389.00-$1,699.00 depending on which kit you got Either kit would have Rods,Crank,Pistons,Bearings,Piston rings,and Wrist pins
Thats personally what I intend to do when I rebuild my 360Cid I'll end up with a 448 or 450 cause I want atleast .010 to clean up the cylinders for a rebuild
P.S. that rotating assembly in question that I used for those end displacements would run about $1,389.00-$1,699.00 depending on which kit you got Either kit would have Rods,Crank,Pistons,Bearings,Piston rings,and Wrist pins
Thats personally what I intend to do when I rebuild my 360Cid I'll end up with a 448 or 450 cause I want atleast .010 to clean up the cylinders for a rebuild
Thread
Thread Starter
Forum
Replies
Last Post
Jeff Beerbower
1973 - 1979 F-100 & Larger F-Series Trucks
6
Aug 16, 2012 08:04 AM
dino360
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
3
Dec 14, 2004 07:50 PM
66beater
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
4
Sep 21, 2004 11:31 AM
71and72F100s
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
13
Jan 5, 2003 03:20 AM
