My Head is stamped PR3-3 and above the exhaust ports has 9/1 6/0 4/0 0/9 ..So I always figured its a 91 head 1st gen b16a..But Ive seen some 92 heads stamped 91..And I never really noticed the valvecover untill I answered someone's question in a thread..But you know the 1st gen b16a had the dohc in big letters and the vtec in small and said "honda motor co." ..And the 92+ b16a had dohc in small and vtec in big and just said "honda" ..So the question is ,,from those engine stamps ,,is the engine a 1st gen with swapped valve cover ,,or is it a 92 2nd gen head ??


Heres a 1st gen b16a



And heres my b16a..





Modified by Mr.speaker at 1:05 PM 5/27/2006

 

what is the question

 

Sorry ,

from those engine stamps ,,is the engine just a 1st gen with swapped valve cover ,,or is it a 92 2nd gen head ??

 

..

 

I was reading about the differences between the a1 and a2 but they said the only way to know from the outside was to look at the intake manifold and the valve cover. but either had been swapped out there isnt a way to know.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lookinaround &raquo;</TD></TR><TR><TD CLASS="quote">I was reading about the differences between the a1 and a2 but they said the only way to know from the outside was to look at the intake manifold and the valve cover. but either had been swapped out there isnt a way to know. </TD></TR></TABLE>

Yeah thats why I gave the engie stamps from above the exhaust ports..Its the date,,I just dont know how to read it perfectly..It has 9/1 6/0 4/0 0/9 ..So I always assumed its a 91 engine ,,but at the same time honda made some 92 engines in 91 for the 92 models..So Im just trying to see if someone can tell me the year it is from those numbers..Its either 91 or 92..Nothing else it can be..Just not sure ..By the way I dont have a a1...I got a B16a ..

 

Wheres all the honda pros at?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lookinaround &raquo;</TD></TR><TR><TD CLASS="quote">I was reading about the differences between the a1 and a2 </TD></TR></TABLE>

There are no such things as JDM B16A1 and B16A2...just B16A.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lookinaround &raquo;</TD></TR><TR><TD CLASS="quote">they said the only way to know from the outside was to look at the intake manifold and the valve cover. but either had been swapped out there isnt a way to know. </TD></TR></TABLE>

The BEST way to tell if the B16A is a first generation or a second generation is the harness plugs/connectors. If the engine has white/cream colored plugs it is OBD0 1st gen. If it has gray plugs it is OBD1+

Also, 1st gen B16As will have "PGM-FI" on the intake manifold, while 2nd generation B16As don't.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">Wheres all the honda pros at?</TD></TR></TABLE>

Right here buddy A '91 JDM B16A is second generation. The 1st gen B16A stopped production in 1990. In 1991 the second generation B16A was found in the EG2/6/9 and the DA6.

 

I thought the a1 referred to the first gen and a2 to the second gen. I apologise for the false info. I guess all information on the internet isnt correct.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lookinaround &raquo;</TD></TR><TR><TD CLASS="quote">I thought the a1 referred to the first gen and a2 to the second gen. I apologise for the false info. I guess all information on the internet isnt correct.</TD></TR></TABLE>

This is true on Honda message boards, but any true Honda engine guru knows that engine codes that end in a number like "B16A2" are specifying that the engine is not JDM, and an export model. B16A2 is an actual engine code, not referring to a JDM second generation B16A.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lookinaround &raquo;</TD></TR><TR><TD CLASS="quote">I thought the a1 referred to the first gen and a2 to the second gen. I apologise for the false info. I guess all information on the internet isnt correct.</TD></TR></TABLE>

B16a1 is from the 90-91 edm civic/crx vtec models..B16a2 is from the 99-00si/sir north america and edm vti..In japan they had B16a ..thats it and then had different gens..Like B16a 1st gen 90-91 civic/crx sir and 90-91 integra xsi..Then the 2nd gen B16a was 92-93 integra xsi and 92-95 civic sir..etc,etc.etc...


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. Bob Dobalina &raquo;</TD></TR><TR><TD CLASS="quote">

The BEST way to tell if the B16A is a first generation or a second generation is the harness plugs/connectors. If the engine has white/cream colored plugs it is OBD0 1st gen. If it has gray plugs it is OBD1+
Also, 1st gen B16As will have "PGM-FI" on the intake manifold, while 2nd generation B16As don't.
Right here buddy A '91 JDM B16A is second generation. The 1st gen B16A stopped production in 1990. In 1991 the second generation B16A was found in the EG2/6/9 and the DA6.</TD></TR></TABLE>

Heres the thing..I bought engine without the distributor..I added an obd0 b16a distributor myself..So you're telling me that from the date this is a 2nd gen b16a .? THats good to know,,That means I dont have the worst dohc vtec cams ,,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">

B16a1 is from the 90-91 edm civic/crx vtec models..B16a2 is from the 99-00si/sir north america and edm vti..In japan they had B16a ..thats it and then had different gens..Like B16a 1st gen 90-91 civic/crx sir and 90-91 integra xsi..Then the 2nd gen B16a was 92-93 integra xsi and 92-95 civic sir..etc,etc.etc...
</TD></TR></TABLE>

All correct except for your years are wrong. 1st gen B16A was in the 89-90 Civic/CR-X and 89-90 Integra XSi/RSi. The 2nd gen B16A was in the 91-92 Integra XSi/RSi and all 91+ Civic/CR-X Del Sol/Civic Ferio SiR models.

You are referencing JDM engines with US model years. Japan is a year ahead, that's why the 93 Integra with VTEC was the DC2 Si-VTEC. Obviously it didn't have a B16A in it

 

Oh..I was always wondering why they would call a da integra a 89 ..and dc a 93..

 

your really smart

Not to steal ur thread mr speaker but mr bob, how can I tell if i have usdm/jdm trans ? ? Its an s21 and from what I understand all that means is its a 94-95 trans. But they put it in the usdm del sols + jdm sir, and I dont know the difference.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtakkk &raquo;</TD></TR><TR><TD CLASS="quote">your really smart

Not to steal ur thread mr speaker but mr bob, how can I tell if i have usdm/jdm trans ? ? Its an s21 and from what I understand all that means is its a 94-95 trans. But they put it in the usdm del sols + jdm sir, and I dont know the difference.</TD></TR></TABLE>
Are you sure your tranny isn't a Y21??? Never heard of an S21. There are S1 transmissions, but those are cable.

Either way, if it is a B16A transmission, whether it's USDM or JDM they have the same ratios.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtakkk &raquo;</TD></TR><TR><TD CLASS="quote">your really smart
</TD></TR></TABLE>

True

But that has nothing to do with how I know all this ****. Let's just say that in college, I had a good internet connection, alot of free time, and I have read every bit of info ever written by Katman and Hybrid from back in the TIIITE BOYEEEEE days all the way to the present. If you don't know who the TIIITE BOYEEES are, you haven't been in the game long enough

 

Yeah Ive seen s21 trannys out of the usdm delsol vtec cars,,But at the same time I swapped in a supposed jdm s21 tranny into my friends b16a bubble..Like Mr.bob said they're most likely the same (gear ratios and all that there)

 

Here is THE BIBLE:

EDIT:

No soup for you.


Modified by Mr. Bob Dobalina at 3:50 PM 4/4/2006

 

Don't be sharing the bible

 

nooooooo I need the bible, unedit it!!!!!

Damn addicting ht deterred me too long from this topic, pleasseeee share it!!!
or pm me

 

if the first stamp is 9|1 then its a 1990 motor.. stamped from the year of assembly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hYbRiD EeEkAy &raquo;</TD></TR><TR><TD CLASS="quote">if the first stamp is 9|1 then its a 1990 motor.. stamped from the year of assembly.</TD></TR></TABLE>

Yeah it's stamped 9/1 6/0....Now I have 2 different answers.. ..Ok I know the 9/1 stamp means 1991,,but the 6/0 ,,? Would that mean it was a later 91 which would make it a 92 head..Or what.?

 

bump for this man, I know wat its like not to know . . . . it blows lmao

 

Simple. the small DOHC and Large Vtec is USDM valve cover
Large DOHC and small vtec is JDM valve cover.

/thread

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NrG &raquo;</TD></TR><TR><TD CLASS="quote">Simple. the small DOHC and Large Vtec is USDM valve cover
Large DOHC and small vtec is JDM valve cover.

/thread</TD></TR></TABLE>it's the other way around

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NrG &raquo;</TD></TR><TR><TD CLASS="quote">Simple. the small DOHC and Large Vtec is USDM valve cover
Large DOHC and small vtec is JDM valve cover.

/thread</TD></TR></TABLE>

Wow,,that doesnt help at all..And I already know about the valve cover differences..and its not about jdm or usdm..its about what year the engine is..

Go back and re-read everything in is this thread and then let me know if you can help me..Thanks for an attempt..