Trick Flow 440 heads, The Real Deal?

The rocker arm pedestal is .600" taller from the head face to the rocker shaft saddle.

The intake valve hits the cylinder wall of the 4.250 standard bore at .770" when using a 8519PT1 head gasket. The exhaust valve doesn't hit the wall before the retainer hits the valve seal at .850".

So with a valve spring change the heads could go 0.800 or more lift right out of the box? Glad to see that the Trick Flow engineers didn't screw up the installed height like the Edelbrock engineer did. Sounds like the installed height on these heads is even better than on most of the Indy heads. The Indy heads usually require machine work to handle a big valve spring and 0.800 lift.