Ok ppl I have a '88 Civic HB std. that has a d15b1 in it and I have a '91 Civic HB std. that has a d15b1 in it. I noticed on the '88 that the o2 sensor is right at the top where as my '91 isn't. What is the difference in the two engines? I was trying to get a clutch for it, but the part numbers are different for the years. Just about all the part # are different with these engine yrs.
For those about to say "DO A SWAP" I plan on doing one, but its not in the budget yet. So please spare me. I don't want to hear it. I just want to know the difference in the year engines and why the '88 is so different. HOLLA!

***(Just a little info) I got 2 new jobs. I will be working at Advance autoparts PT and I just got a new bartending job that starts in Nov. My swaps maybe sooner than I thought. I may not have to sell the b18b. Wish me luck.***

 

the difference between the two clutches is the spline count on the trans the 88 is different the 89-91 so that why you are comming up with different part numbers

 

anyone know the spline count on a 88 hb std?

 

hrm I think its 21.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wiz &raquo;</TD></TR><TR><TD CLASS="quote">hrm I think its 21.</TD></TR></TABLE>

that is correct. the 88s are 21 spline and 89-91 are 20 spline.