are there any markings or anything? thanks

 

supposably(sp) you should be able to tell by the camgear. but when i took a cam out of an A6 engine the camgear looked exactly the same as my old LX cam. so are there any other ways?

 

I could def. tell the difference between my DX cam and Si cam.

 

slowhatchgrl... i think he means when its out of the car, now performance *feeling*

 

Yes, I know! The cam lobes are bigger on the Si one!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SlowHatchGrL &raquo;</TD></TR><TR><TD CLASS="quote">Yes, I know! The cam lobes are bigger on the Si one!!!! </TD></TR></TABLE>

hehe, thanks. Thing is I am going to pick up a SI head to replace my d15 head. Since the casings are the same, i just wanted to make sure the SI head the guy is selling is actually a SI head and not another dx one.

 

I have an Si head in the garage I'm getting ready to put it on my D15B1...theres some numbers cast in the exhaust side,on the left...my Si head has PM9-4 on it,while my stock D15B1 head has PM3-5 on it.I don't know if this has any relevance though,just thought I would mention it.
Glenn

 

ive had them side by side.....and the lobes are almost the same....you wont be able to tell without a micrometer

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by subgeniusdude &raquo;</TD></TR><TR><TD CLASS="quote">...theres some numbers cast in the exhaust side,on the left...my Si head has PM9-4 on it,while my stock D15B1 head has PM3-5 on it.</TD></TR></TABLE>
Yeah, my b1 head says pm3-5 also. But Honda told me the casings are the same, only the cam and valves are different.