What's the difference between the below valve covers? I have a 1995 Integra SE. (it is the top picture, the dirty valve cover) My engine has the code B18B1 on it, and then right under the valve cover it also says P4-2. A friend who owns an import shop just bought a 1994 RS and it says P4-8 (or maybe it was vice versa) on it's engine below the valve cover. The valve cover looks different than mine, why? (The 94 has had a lot of work done to it including a JRSC, does this maybe have anything to do with it?)


My 1995 SE


The 1994 RS with JRSC

 

I may be wrong but i think the 94-95 LS motor has a valve cover like yours and the 96 and up had the other one. The previous owner of the RS might have just replaced the valve cover.

The only difference between the 2 that i saw (i have both valve covers) is the PCV valve. The newer ones has it on the valve cover while the older ones had it on the intake manifold. The intake manifolds are different too between the engines with different valve covers.

Sorry, dunno about the P4-2 thing.

**edit**
maybe when the previous onwer of the RS put the JRSC, he needed a place for the PCV valve. Since the JRSC replaced the intake manifold (where the PCV valve should be for a 94) there was no place to put the PCV valve... thus the newer style valve cover was needed. Damn am bored at work


[Modified by jonsteR, 7:30 PM 12/21/2001]

 

me too!

Thanks for the info, I wonder if that's what happened.
Anyone else have any info to confirm his thoughts? Sounds good to me!

 

yeah the bottom vavle cover is the 97 and u[p vavle cover. i have that one on my 98. but reall no diff, othere that pvc thingy.

 

Your car has the 94-95 valve cover as said previously...

The valve cover on the lower pic is, I believe a 97+, I think it changed in 96, maybe 97... but the motors should be the same, unless the engine in the lower pic was swapped for a 97+, which has a slightly more efficient quench area, resulting in a minor HP gain.

 

Cool! Thanks for the explanation guys, I'll let my friend know. He knows very little about the car. He bought it from a kid from Texas that needed quick $$$ bad, and so he got a good price. It's kinda ricey, with a body kit, 17" TSW's I believe, big wing, all that stuff... also the JRSC like I mentioned too. It's also LOUD-AS-HELL. DC race header, 3" pipe all the way back, with NO cat. YEah it's a rice bucket. I drove it to get a feel for the JRSC but couldn't pay attention to anything but the noise. Need to drive it again for an extended time to see if I really want a JRSC or engine swap for myself. My car has 105K miles and I plan on making it a full-fledged track car for next year.

One more note, on the HP gain from 97+ models. Wasn't the 94-96 rated 143hp, and the 97-01 models rated 140hp? I thought this was an emmisions thing that made it lose 3hp in the newer models, but I could be wrong (and probably am)

Thanks again!

 

94-95 = 142hp
97+ = 140
and yes it's because of emissions (OBDII)

 

First Pic= B18B 95 LS/RS/SE Motor 142 HP
Second Pic= B18A 94&older LS/etc. 140 HP

Different Cover Indeed!

 

Second pic is the newer B18B valve cover that was changed around 1998 like someone else said. The B20 in the CRV uses the same valve cover

 

Ok, so can someone clarify this...so far I have heard that the 94-95 have 142hp and 127 tq. The 97 and up have 140 hp and 124 tq. What about the 96's??? And what valve cover came with it? I am considering a B18B swap for my 99 civic. Would you guys say it's better to swap a 95 or a 96 and up motor? Thanks!

 

difference.

Valve cover #1 looks extremely gay, and old.

Valve cover #2 looks good, and new.

 

difference.

Posts from everyone else in this thread: Good and helpful

Post from 97blackteg: Gay and lame

 

well that is the difference, there is no performance gains, or anything. So actaully my anwser is more relavant then anyone elses.

 

1st pic was 94-95 non-vtec (B18A1)
2nd pic was 96+ non-vtec (B18B1)

power decreased in 96 due to OBDII

 

I thought the 2nd generation non-Vtec Integra's were b18a and the 94+ non-vtec motors were the b18b. I may be wrong tho.

 

First let me say that B18A1's only came in 1990-1993 Tegs. If you have a B18A1 in your 94+ Teg, you're getting ripped off. In 1994 Honda put B18B's in Tegs. ALL NON-VTEC 1994 AND NEW TEGS HAVE B18B's.

The 1991-1992 LS tegs had 130 hp
The 1992-1993 LS tegs had 140 hp
The 1994-1996 LS tegs had 142 hp.
The 1997 and up LS tegs have 140 hp.

The difference between the 91 and 92 hp numbers is due to slightly better cams and a better flowwing header. The difference between the 93 and 94 hp numbers is from slightly better cams again and an even better flowing head. The reason the hp numbers drop in 1997 is because thats the year that Honda went to OBD-II and that system robs you of 2 hp.

The pictures above are simply of different year B18B's. I'm not sure on the years but I believe in 1996 or 1997 they switched from the top valve cover to the bottom one. The first valve cover is the same one found on B18A1's, so that may lead people to believe they're looking at a B18A1.

-Steve

 

OK, so you're saying that my 1996 SE's ECU was changed by someone before I got it to an OBDII computer? They changed the ECU's to OBDII in 1996, which is also when the HP fell to 140HP.

Also, my friend's 1994 LS has B18A stamped on his engine... but he bought the car new and has never been swapped.... so how do we explain this? I think we need a poll. Everyone with a non-vtec integra w/the original engine in it, post your year and engine code. Maybe we can get this somewhat resolved.

 

Ok, so I'm off by one year on that. But I want to see pictures of this B18A1 94 LS. Take a pick of the engine stamp then take a pic farther out to show that it is in a 94+ car. If you can show me that, I'll show you a freak of Honda.

-Steve


[Modified by DAYUIZ, 10:54 AM 12/25/2001]

 

Actually, power went up for 97 to 142HP and 127tq despite OBDII.

and the first valve cover is the pre- 97 cover and the second is 97-00

 

the top one is a valve cover from either a 90-93b18a or 94-97 b18b. the bottom is from a 98-00 b18b. i bought a 98 head cause for p&p its the best head to work with. i had mine done and hoping to see a good number on the dyno. the thing to look for when checking for production dates is the numbers imprinted on the head. there's like 6 round imprints with different numbers. those tell you the month and year the head was produced.


[Modified by jdmotorsports, 4:42 PM 12/29/2001]