quote:
Originally posted by PanteraDoug:
STOP TELLING EVERYONE ABOUT THE A3 HEADS!
I like the A3 heads too; but there are excellent alternatives. The "dropped combustion chamber" version of Scott Cook's heads flow at least as good as A3 heads. Dropping the combustion chambers accomplishes the same thing as raising the ports. They also have the same 2.19" intake valve as the A3 heads. On top of all that, Scott's heads have better combustion chambers, i.e. better thermal efficiency. The small combustion chamber volume of the dropped chamber heads requires dished pistons if pump gas is going to be used.
Those heads are designed by Darin Morgan, they are CNC ported out of the box. Plus they have the advantage of using readily available off the shelf headers and easy to find "stuffed port" intake manifolds.
Then there's the Blue Thunder 3.6 cylinder head ... if you want to walk on the wild side ...
