I have a 1988 civic dx with a D15B, 5 speed. Replacing the head gasket, want to use a three layer metal one. Having trouble finding one for the D15b. Will the D16z6 gasket work? Also should I get new head bolts and from whom?

 

I think all the SOHC D15 or D16 gaskets will interchange. The D15B isn't listed in many catalogs because it's a JDM engine. ARP head bolts are often recommended by others here.

 

Did any 1988 civics come with JDM engines, car was sold new in Oregon.

 

Should be D15B2 (16 valve) or D15B8 (8 valve) engine. "D15B" with no number is a JDM.