Paul,
How is the 13b Cosmo engine different? I am looking at one on ebay. I
remember seeing some mention of a difference. Maybe it was the exhaust
port size....
--
Blake C. Lewis

If it is Japanese spec it has larger intake ports.
What year is it?

They don't say they are a jdm importer. They just say it is 90-96.
Blake

OK then it is probably the big port version of the 13B Cosmo
engine. Just like Bulents.