SS/CS question.

[SSDiv6]

Originally Posted by 4speedracer

While on the subject of the SS/CS what are the approved ford heads? N351/352?

Yes, the approved Ford cylinder heads are the N351 and N352.
Many years ago I submitted the Pro Action/RHS Ford Cast Iron heads with the 58cc chamber, 200cc and 230cc intake port for approval, however, a decision never took place.
I believe the Dart 200cc cast iron cylinder head may be the same as the RHS head. Dart and World Products offer cast iron heads that could be submitted for approval.