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Jan 21, 2009 | 03:29 PM

bigfoot22

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Tuned

Joined: Apr 2007

Posts: 294

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From: VA

360 bored

What cubic Inches do you get if you take a stock 360 and have it bored .030 over?I've been told differant numbers and want to hear from someone that really knows.Thanks-Ken

Jan 21, 2009 | 04:55 PM

FFR428

Needsmorecoffee.

Joined: Oct 2004

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From: CT

4.08 (.30 over) bore and 3.50 stroke net you a 366 CI.

Jan 30, 2009 | 02:33 PM

Moto Mel

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Joined: Jan 2009

Posts: 4,584

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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.

Last edited by Moto Mel; Jan 30, 2009 at 02:34 PM. Reason: incomplete

Feb 1, 2009 | 11:02 AM

court1100f

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Joined: Jun 2007

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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