We put a JDM gsr swap in a civic the other day and i noticed that on the exhaust side of the head, up in the left hand corner was a star with a circle around it casted in the head. Anyone ever seen this before? At first i thought it was scratched in the metal, but when you rub your finger acrossed it, it sticks out.

I will try to have pics up later.

TIA

 

Yeah I've seen pictures of it before...apparently Honda put it on the heads as a symbol of good luck or protection.

 

lol you are funny..... no haven't see that before, why don't you check if theres after market vavle train in that head or check if the head has been ported.
I used to get some JDM engines comes with aftermarket valve trains and aftermarket ECUs.....

 

my gsr head has that....

and there is work that has beem done to it when i bought it.. it has

dual valve springs
valves
and retainers
and ported on the exhaust side