Hello everyone. A couple of questions regarding my used engine. 1 Does anyone know if there is a production date or way of telling when my jdm b18c block was made? 2 I have found four round circles on the head above the exhaust ports. The numbers in the circles are 98 5 18 90. Then pr3-1 Hm. I have been told this is a b16 head. Does this code out as May of 1998? As this powertrain was sold to me as a '98 spec jdm itr it would be nice if anyone had a known legit engine to compare some numbers. Hope to hear some or many!!

 

First off, you should have posted this under the General Tech Help section of HCF...youll get more responses there than in the new member section.