Small Block Cylinder Heads 'Stock Specs'

69 Cuda 440 said
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So what you're saying is,

That if you have '2' sets of 'identical' Cylinder Heads and pop them on the same
Small Block Mopar Engine, they will give the same 'exact' output without any variance + or -.

Who are you kidding..........

You make my point for me, what hell good is this if every head were to give diff specs when tested. Seriously though...ive tested diff cores of the same casting, they were damn near identical, and I have yet to cc a 318 int port and get more than 125 cc unless its been worked, meanwhile the number actually gets smaller with valves jobs sinking the valve into the port!

One cc , let alone 2 cc's is a big diff in port size, thats like chopping the guide down 3/8 .
Almost none of our Mopar heads come with chambers of the actual cc listed in spec sheet from the factory or books, there would be motors with cyl pressures all over the place. The first set of heads that actually measured up to what a spec sheet stated were the 302 heads that actually are what they were advertised as, and I believe the magnums possibly...but I don't bother with those heads because putting work into them is like building houses in New Orleans, at anytime that can go bad...

My points are valid, I speak facts.
We dont agree on all of this.
How about you make a youtube vid showing how you come up with these numbers?