D16Z6 intake manifold on my 98 civic

[hemz86]

Is it possible to swap on a D16z6 intake manifold onto my 98 civic dx which had the D16y7 intake manifold originally?

[4Bangin]

Yah but you should go with a Y8 manifold, its much better.

[hemz86]

Yah but you should go with a Y8 manifold, its much better.

got a good deal on this one and i know it is better than the y7 that i have. The thing is do i get a z6 gasket or a y7? b/c the y7 is causing me problems now that i have the z6 manifold on there

[kommon_sense]

ok... so you asked if it could be done after you already did it... :shock:

anyways, you should get the gasket that matches the manifold. So get a z6 gasket.

[hemz86]

Could that be causing a vacuum leak, which is causing such a wierd idle?

[pearl62]

NO, no no!!!

I have a Z6 intake manifold on my 96 Y7 and I originally tried the Z6 TB gasket... It kept pulsing from 1500-2000 because it didn't line up with the various ports on the Y7 TB and had a huge vacuum leak. I went back to a Y7 TB gasket and everything was fixed. Always use the gasket for the TB, not the manifold!

In my opinion, the Z6 manifold is just as good as the Y8. It flows well, but just has a slightly smaller plenum. Maybe a difference of 1-2 hp at most, but considering that z6 mani's are available real cheap, it's still worth it in my mind.

[hemz86]

see but the y7 tb gasket is what i'm using so maybe its b/c the gasket for the y7 doesn't match up with the z6 right. So maybe i should go get a gasket from honda instead of the autoparts store? I have a rough idle and it surges?

[kommon_sense]

NO, no no!!!

I have a Z6 intake manifold on my 96 Y7 and I originally tried the Z6 TB gasket... It kept pulsing from 1500-2000 because it didn't line up with the various ports on the Y7 TB and had a huge vacuum leak. I went back to a Y7 TB gasket and everything was fixed. Always use the gasket for the TB, not the manifold!

In my opinion, the Z6 manifold is just as good as the Y8. It flows well, but just has a slightly smaller plenum. Maybe a difference of 1-2 hp at most, but considering that z6 mani's are available real cheap, it's still worth it in my mind.

reread his post. between the head and IM, you use the gasket that matches the IM. between the tb and im, you use the gasket that matches the tb.

[kommon_sense]

see but the y7 tb gasket is what i'm using so maybe its b/c the gasket for the y7 doesn't match up with the z6 right. So maybe i should go get a gasket from honda instead of the autoparts store? I have a rough idle and it surges?

use a honda gasket, they are cheap and guaranteed right.