I'm resitting the valves on my b18c head and also replacing two intake valves. The intake side has two valve springs, One outer and one inner. However on the exhaust side there are only one outter spring. Are there suppose to be two on the exhaust as well? The manual says nothing about that.

 

nope thats the way it is on my obd1 head

 

Yes, the P72 heads came stock with double intake and single exhaust springs. Why don't you buy some ITR intake springs and move the GSR intake springs to the exhaust side? ITR exhaust spring = GSR intake springs.

 

Takes too long to take out all the springs againlol

Also, are b16 intake valves interchangable with the b18c valves?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chu77 &raquo;</TD></TR><TR><TD CLASS="quote">Takes too long to take out all the springs againlol</TD></TR></TABLE>
It's easy with the head off of the car.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chu77 &raquo;</TD></TR><TR><TD CLASS="quote">Also, are b16 intake valves interchangable with the b18c valves?</TD></TR></TABLE>

Yes. You can always check the part numbers with the links in my signature. This would be a great time to install ITR intake valves.