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

 

The second block [5 million series] is the newer of the two, which makes it the SiR 2.

 

thanks man. Now I can start getting it ready.

 

ohhh.... I also figured that but I wanted to make sure

 

I don't think if 5 million or 1 million has anything to do with if its newer or older. If it starts with a 5 that means it is out of a civic, and a 1, it came out of an integra. Only SiR-1's came in integra's so process of reasoning states that if one is new and one is old, and the one million is old, the five million (also the one with more sensors) is new (like Harry said)

 

http://hybrid2.honda-perf.org/tech/b16a