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Old 07-03-2006, 02:28 AM   #16
bambam89lx
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Re: D16A6 block swap with a D16A1 Block

Quote:
Originally Posted by juv923
I Found out that it will be a direct fit and that i can use my Si transmission so thanks for the help. i ended up talking to a guy at JKmotorsports and he has done it before and i also found a friend who said he has seen it done. the only mount that is a little off is the back motor mount which is no problem. i was just trying to find out if anyone had done this before but since i have found a few friends that have i will have them help me out. Plus the integra was totaled and it was a friends so we pulled the motor. Who said i was in a sport i have a CRX witha mini-me setup which was done before i got it and now it has a cracked piston or rod. i also found out that i can use the Y8 head on it but im not goin to do that im goin to keep it a DOHC.
It won't be a direct fit. I don't know what your "friends" are smoking...but a D16A1 has NEVER been a direct fit. The mounts will NOT line up. The lower alternator bracket is going to sit on the axle. There's no way around that. The motor will never work man, and the head will NOT just bolt right on. I'm trying to save you ALOT of work. But, you'll find out when you go to put that head ont he D16a1 and see how GREAT it lines up.
Honestly, I'm thinking that they are thinking that you are talking about a Dohc ZC motor, which is NOT the same as a D16a1.
Even if you want to keep it dohc...it won't bolt up.
Besides, that motor has so little power it's not even funny. It feels like a sohc non vtec motor. Even if SOMEHOW you could get the motor to fit in there, it will be slower than your old motor.
You'll see though. Please post pics when you "get it in" the car. Chances are....we're probably never goin to see pics, because you won't get it into the car.
I am not just speaking out of my arse either...this is directly from first hand experience.

Good luck man.
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Old 07-03-2006, 04:22 AM   #17
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Re: D16A6 block swap with a D16A1 Block

Here's a link to my friends blog, he swapped a D16A1 in a 4G Civic (scroll down to February 22nd).
http://malichitesmansion.spaces.msn....onalSpace.aspx

You will find it's just like I described, you will need to elongate one of the holes on the tranny, tap another hole and make a drivers side motor mount. Your SI tranny does not share the same bolt pattern as the D16A1 (close but not the same), and the drivers side motor mount is totally different.

I have seen this done several times, and I've seen Malichite's car in person. This is not a "drop in" swap, it can be done but be prepared for some fabrication. I can also tell you from personal experience that there is no way the Y8 head will just bolt right on.

I am very familiar with the D16A1 and other D-series motors. I built a D16A1 and swapped it into my '86 CRX so I know what I'm talking about. Here are some pics:




Good luck!
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Old 07-03-2006, 10:09 AM   #18
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Re: D16A6 block swap with a D16A1 Block

ok that works... The motor is a D16A1 but do remember the research was done last night. Its a zc LS motor so it will be a direct fit. That I can tell you will be proven. and for Bambam, If your eyes are ok have you not seen that I was putting the entire motor in. The head swap was just an idea.. You need to stop tryingt to find small info to start a fight. I will show you what it is that I am doing. Remember the Engine Is DOHC (ZC) that came out of a 89 integra LS....
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Old 07-03-2006, 11:32 AM   #19
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Re: D16A6 block swap with a D16A1 Block

Quote:
Originally Posted by juv923
ok that works... The motor is a D16A1 but do remember the research was done last night. Its a zc LS motor so it will be a direct fit. That I can tell you will be proven. and for Bambam, If your eyes are ok have you not seen that I was putting the entire motor in. The head swap was just an idea.. You need to stop tryingt to find small info to start a fight. I will show you what it is that I am doing. Remember the Engine Is DOHC (ZC) that came out of a 89 integra LS....
I'm not trying to start a fight you idiot. I'm trying to save you the headaches. So which is it? Is the motor a ZC or a D16A1? It can't be both..... The motors are different. Actually, ZC's NEVER came in US 89 integras. ZC's were only made in Europe and Japan, so I still hope you know what engine you have. What does it say for the engine code? If it's a real "ZC" it will bolt right in. If it's a D16a1, it WONT bolt right in.
My eyes are just fine. You DID say at one point that you wanted to put the Y8 head on, I was just reinforcing the idea that it won't work without alot of help. I'm not trying to get into a pissing match with you. I was only trying to help you.
Like i said, I'd be willing to bet that it's a D16a1 and not a ZC, in which case it's going to be a PITA to swap that motor in, and it still is a weak ass motor.
It is much easier to swap a D16a1 into a PRE-88 civic/crx.
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Old 07-03-2006, 05:20 PM   #20
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Re: D16A6 block swap with a D16A1 Block

Quote:
Originally Posted by juv923
The motor is a D16A1 but do remember the research was done last night. Its a zc LS motor so it will be a direct fit. Remember the Engine Is DOHC (ZC) that came out of a 89 integra LS....
Keep in mind there are 4 versions of the DOHC ZC motors.

'85-'87 Civic/Integra ZC (brown top)
'88-'89 Integra ZC (black top)
'88-'91 Civic ZC (also black top, but not like Integra black top)
Extremely rare OBD1 Civic ZC

Don't confuse a D16A1 with a ZC. Once you start calling it a ZC, people will assume you're talking about a Civic ZC.

Also if it came out of a USDM car, it's a D16A1 (look at the engine tag). Even though the '88-'91 Civic ZC will drop right in, the '88-'89 Integra D16A1/ZC won't even though it looks similar. The reason for this is because the '86-'89 Integra is based on the '84-'87 CRX. Honda changed the D-series motor in '88 for the newer body style, but the '86-'89 Acura Integra was still mid way through production so they didn't bother to change the mounts or motor until '90 when the B-series was introduced. The '86-'89 Integra came late in the game when Honda decided it was time to build luxury and sports cars. Honda started the Acura division so the cars would be taken seriously and would not be associated with economy cars, that's why the Integra chassis is 2 years behind the Civic.

Also the D16A1/A8/A9/ZC motors are based on the '84-'87 EW D15 motors. In '85 Honda just slapped a DOHC head on an EW and called it a ZC. Honda made small changes to the motor over the years, and it is actually the predecessor to the B-series motors. This means it's not quite a D-series and it looks like a B-series, but it shares very few parts with either.
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Old 07-04-2006, 02:07 PM   #21
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Re: D16A6 block swap with a D16A1 Block

Yes we finally started figuring out what where we went wrong. We decided to just start over with the A6 block and rebuild it from where it had the problem.. We thought the motor that we did pull was going to work but we later found out that there was more then just slaping it in there. A few things would have need to be done but it still wouldnt have been the motor I wanted in there. Im going to stick with the stock motor and just do N/a tunning. So far we have a performance shop looking to sell us a A6 Block with 20 bore to it and oversized pistons. If I use that with my Y8 head I should be at a good start untill the internal work starts.
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Old 07-04-2006, 08:15 PM   #22
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Re: D16A6 block swap with a D16A1 Block

Quote:
Originally Posted by juv923
Yes we finally started figuring out what where we went wrong. We decided to just start over with the A6 block and rebuild it from where it had the problem.. We thought the motor that we did pull was going to work but we later found out that there was more then just slaping it in there. A few things would have need to be done but it still wouldnt have been the motor I wanted in there. Im going to stick with the stock motor and just do N/a tunning. So far we have a performance shop looking to sell us a A6 Block with 20 bore to it and oversized pistons. If I use that with my Y8 head I should be at a good start untill the internal work starts.
Smart. That's what we were trying to tell you man. That A6 block w/ Y8 head will make more power in stock form than a D16a1 anyway.
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Old 07-10-2006, 02:10 AM   #23
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Smile Re: D16A6 block swap with a D16A1 Block

ok so updates on what happend.. I went and bought a new A6 engine. We tore down my old one and swaped a few things.. got my new one together and dropped it in. Havent fired it up yet just had to do some wire connects and by tomarrow it will be ready. She looks so good sitting in there fresh and new... When we tore my old one I seen from the bad barrings the third piston and also the crankshaft was scrubbed so thats no good. Everything turned out pretty good this weekend.. So hopefully I will be in for a treat when I find out what a new cam and lite weight underdrive pully will do with the Y8 head.....also I used the A6 head gasket instead of the Y8 this time...I think the Y8 gasket wasnt sealing right last time...little oil leaks comming out under the head by the water outlet.....we'll see what happens this time..
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Old 07-10-2006, 01:29 PM   #24
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Re: D16A6 block swap with a D16A1 Block

Quote:
Originally Posted by juv923
ok so updates on what happend.. I went and bought a new A6 engine. We tore down my old one and swaped a few things.. got my new one together and dropped it in. Havent fired it up yet just had to do some wire connects and by tomarrow it will be ready. She looks so good sitting in there fresh and new... When we tore my old one I seen from the bad barrings the third piston and also the crankshaft was scrubbed so thats no good. Everything turned out pretty good this weekend.. So hopefully I will be in for a treat when I find out what a new cam and lite weight underdrive pully will do with the Y8 head.....also I used the A6 head gasket instead of the Y8 this time...I think the Y8 gasket wasnt sealing right last time...little oil leaks comming out under the head by the water outlet.....we'll see what happens this time..
All the sohc 1.5's and 1.6's use the SAME headgasket. The only difference is the material used and thickness. The A6 gasket is garbage....I hope you got a MLS gasket like the OEM Z6/Y8 gaskets are. The leak you had wasn't related to the gasket itself, it was installer error.
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Old 07-14-2006, 08:10 PM   #25
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Re: D16A6 block swap with a D16A1 Block

Ok, I saw some references from this site and I started reading this thread. I feel it is time to step in and debunk some of these miths. I am malichite. I am the one that lxndr linked too. I have a 4th Gen HB with a 87 D16A1 in it.

1. This was not a direct swap. I have all the info on my blog on how to do it. Lxndr was right, you must elongate one hole on the block, you must tap a hole in the tranny for the starter and you will have to make a custom mount. There have been a couple different methods for making this mount. Here is another thread on the topic with more info and 3 differnet cars that this has been done in with 3 different styles of mounts. http://www.thezcr.com/forums/showthr...ht=d16a1+civic

2. It will make the same power as a d16a6. Shinnanigans. The power curve is much better than the a6 and it makes a lot more torque earlier. It pulls much harder than any a6 I have ever seen. Worth the money

3. 86-87 d16a1 will not bolt right up. 87-88 d16a1s will. If there is a mount point on front of the block it is a 86-87. If there is a mount point on the timming belt side it is an 88-89.

4. D16A1 is "not" a ZC but it is very close. Almost all of the parts in and on a ZC will work in an A1 and vice versa. Biggest difference between the ZC and the A1 are the cams are slightly bigger in the ZC and the tooth count on the crank and cam pullys are different. Also the 86-87 has flat pistons as opposed to the 88-89 and ZC with domed pistons. The rods in the 86-87 are also stronger. They are almost as thick as GSR rods.

Do what you will but I recomend the extra time for the A1 if you can get it cheap. I have no complaints with mine. I did my swap in 3 days. It is not as difficult as it sounds. Go threw my blog and you can see the whole thing. Good luck

-Ryan
www.spaces.msn.com/malichitesmansion

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Old 07-15-2006, 12:16 AM   #26
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Re: D16A6 block swap with a D16A1 Block

now thats a dirty engine bay! clean that up dude

nice work on the swap, way too much trouble to go through tho
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Old 07-15-2006, 01:20 AM   #27
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Re: D16A6 block swap with a D16A1 Block

That is an old pic from when I was first doing the swap. Here is a new updated pic. Just have to finish cleaning up the wiring. To much to do and so little time. Not to worried about how dirty it is. This is my Group 2 Club Rally car anyways. Cant help the dirt.

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Old 07-15-2006, 05:09 AM   #28
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Re: D16A6 block swap with a D16A1 Block

Well i didnt stick witht the motor. I ended up buying another A6, the project took too long because some idiot didnt know what he was doing when he rewired the ecu. It was a pain in the ass.. An OBD1 Ecu with the OBD0 harness and OBD1 connecters on it when he should have just put a dang OBD1 harness in. Well I fixed it up and rewired some things. Fired it up and now have to bring it back into the shop, damn valve guids are bad on the Y8 head. I sware the next kid that rips me off is going to get a law suit for time and money waisted. But im hoping to have that problem fixed real soon. The A1 engine I gave to a buddy cause The rods in those you can use in an A6 block since they can hold about 220hp and the half shafts on the transmission worked great on his A6 Si tranny, the rest will be used for parts for other hondas....
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Old 04-22-2016, 11:28 PM   #29
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Re: D16A6 block swap with a D16A1 Block

I've got a D16A6 in my '89 si. I'm considering purchasing an '87 wagon, equipped with a 1.5 and Real Time 4WD. After reading this blog, am I to understand that this will drop right in (changing out the wiring harness and the computer)?
Also, my girlfriend wants to make it an automatic. That's no big project, is it?
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