Cam numbers and bore numbers

[Confederate1969]

Two topics with this post - anyone know where I can look up cam lift/duration numbers for the stock cam that goes in the 383?

Secondly, is there a bore calculation to find out how much displacement you get when you bore an engine over? What would my 383 be if I have to bore it .30 over? And once an engine is bored over, does this increase power at all? Or is it simply more space for the same amount of fuel to burn if all other parts of the engine remain the same i.e. valves etc?

 

[John69RR]

Cubic inch displacement is;bore X bore X stroke X no. of cylinders X .7854=CI.
Here is a link from Mopartrs on the cam specs. The 440 production cam with a 268/284 duration and 450/464 lift is a RR cam.

http://www.moparts.org/Tech/Archive/motor/20.html

 

[droptop]

I agree on the cam specs that John69RR posted. I think that an overbore of thirty thou is only like a 3 or 4 cu. in. increase.

 

[SomeCarGuy]

30 over is 5 or 6 cubes.

 

[Big John]

5.4 Cubic Inch to be exact.

http://www.golenengineservice.com/html/calculators.html