Ford Racing 347 Series Sealed Engine Handbook
Issue Date January 25, 2013 Revision #7
No part of this document may be reproduced without the prior agreement and written permission of Ford Racing
17
Z304DA – Z304DA7 Head Tech Specs
Intake Port
Exhaust Port
Dimension A - Throat
diameter
1.810” +/-0.020”
1.385” +/-0.020”
Dimension B – Distance from
seat insert bottom to take
Dimension A
0.350” +/- .020”
0.200” +/- .020”
Measuring the Bowl Cut
Dimension A
measurement taken at
the bottom of bowl cut