It's a 327 with cylinders bored .040" over stock.
It is: 1/25 simplified
040 = forty
Here's quick easy and simple answer 350ci is the total volume of all eight individual cylinders of the engine in cubic inches added together 350ci divided by 8 = 43.75ci volume per cylinder bored .040 over which means forty thousands of an inch overbore means that you enlarged the entire bore from top to bottom by forty thousands of an inch over it's entire circumference the reason it is done is because the cylinders have worn to the point that even with new piston rings the tolerances would be out of factory specs. so you bore it out .040 then you have to buy new .040 over pistons and rings then do everything else you need to do to put the engine back together and you have a Chevy 350 bored .040
4.040". The standard bore is 4.00".
a bored over 305 The displacement is now 312.423
They do not make .050 over pistions. But they do make .030,.040, and .060 pistions.
If my math is correct , almost 410 cubic inches ( using a 4 inch bore and a 4 inch stroke that has been bored out .040 )
.040 is 18 Gauge
4 to 8 degrees before top dead center
Click the center counter until it shows 040 (the total number of levels on the game).
Well about .030 and .040 over is pretty good, but .060 over would probably be the most you'd want to go with a 318. If you bore it .080 or .090 over then your asking for trouble.
.040 is rcommended gap .040
Depends on usage, should be around .040 inchDepends on usage, should be around .040 inch
To convert from inches to mm, you must multiply by 25.4.
The 351M/400 engines have "thin wall" castings and can not be safely over-bored beyond .040". This is probably the only real drawback.
The answer is 823 040.
0.040 is 4%