Hey everybody.

I just barely got two b16a blocks from this guy. Both are JDM and one is from a sir 1 and the other a sir 2. What I need help on is identifing which is which. It is just the block, no pistons, no head, no manifolds, just the block.

click on this link to see pics of the differences that I have found, then tell me which is the newer sir 2 engine.



http://www.angelfire.com/biz7/aiperf...nginepics.html

please help soon. I need to know asap.
thanks