Another 416 Stroker Build-Pic Heavy

gregcon said

Porting is all the same. I know that because I see countless heads being offered for sale at top dollar that are 'ported'. If porting weren't always the same, the sellers would state, "selling for cheap because God only knows what's been done to the ports"

Click to expand...

"Porting is all the same"
You mean in regards to expectation?
There is only so much that can be done to a constrained uniform hole.

But i will point out they arent all the same.
There are circles of known porters who get x amount and then there are others who introduce more problems as well as a slight increase in flow like turbulence, like poor averages. Two guys can get 260 CFM at 500 lift let's say... but the .200-.300 can be 10-15 cfm less than one another too.

Tie a weight to only one ankle and then go sprint as fast as you can and tell me which leg/foot was fighting you more or less at the acceleration of the sprint or the top/end. Its crude and leman but you get the picture.