Originally Posted by xbgs351
What was the measured width and height?
I measured my factory heads at 1.89 square inches.
These are taken in the middle of the port and to the depth where the first pushrod is, using 5/8 radius's in the corners. Did we do the same way?
I measured 1.92 high and 1.4 wide.
1.40 x 1.92= 2.688 sq inch. (port including corners)
All 4, 5/8 radius in each corner equals .336 sq inch.
2.688 - 0.336= 2.352 sq inch.
(I did the same with a stock, unported 302c and got 1.97 sq inch.)