KLZE bottom with a KF-DE intake manifold

[Lori Carlyle]

hey guys,

I'm in the middle of a KLZE swap and due to some really bloody bad purchases and events, I've only got a KF-DE intake manifold

Everything else is from the KLZE, Cams, TB, ecu ect ect.

Will it bolt directly on and will it work? and what kind of HP will I get until I can get another IM. (yes, I know that's an very wide margin for people to guess but as long as it runs I don't care at this point!)

[RobMinhas]

Inlet manifold is intake manifold right?

You'd probably want to make sure you have ze/de injectors and AFAIK it will not up since the KF is quite similar to the k8/kls

[Lori Carlyle]

Yeah, sorry, Intake Manifold.

I've got the fuel rails and injectors from the KLZE so that's not a problem.

[MrMazda92]

So long as the ports are matched it won't be an issue, as you have resolved the injector difference from the get-go!

[Lori Carlyle]

So long as the ports are matched it won't be an issue, as you have resolved the injector difference from the get-go!

Hang on... so if I just drop the KLZE Fuel rails onto the KFDE Intake Mani, it will work?

[RobMinhas]

I don't think the fuel rails will match, you'd have to use the KF fuel rail and the KL injectors.

[MrMazda92]

With exception to the KJ setup(injectors aside), every K series intake can be mix-n-matched.

If the ports are D shaped, it will work relatively well(assuming the VRIS points aren't off by too far, or you have it tied open/removed).

If the ports are oval shaped, it will function as a KL01 intake on a KL31 set of heads would.

[Lori Carlyle]

The ports are mismatched, I should with some luck be getting the missing parts for the correct Manifold from a member on here. Saves a lot of hassle.

Thanks for the input gents. /Tipshat.

[Nd4SpdSe]

The runners are narrower on a KF IM, you'll be restricting airflow, so you'll lose power, but it will work.

[MrMazda92]

Internally or externally narrower?

[Nd4SpdSe]

Both. You should be able to see and compare the runners on the KF will look (externally) almost as narrow as a K8, or really, it'll look like a K8 straight neck.

Internally it should be a lot narrower as well unless the walls are super thin, but it's no different than the ports matching from a K8 IM on a DE but the IM runners being more restrictive.

Even with the mis-matched runners, it was reported that where were gained when putting on a ZE IM on a DE

[Josh]

Both. You should be able to see and compare the runners on the KF will look (externally) almost as narrow as a K8, or really, it'll look like a K8 straight neck.

Internally it should be a lot narrower as well unless the walls are super thin, but it's no different than the ports matching from a K8 IM on a DE but the IM runners being more restrictive.

Even with the mis-matched runners, it was reported that where were gained when putting on a ZE IM on a DE

True story^^^

The KF IM is a little better than the K8 IM for the reason Nd4SpdSe said. It is an upgrade for a K8 motor for sure, but on the DE one will more than likely loose a little bit, but it will work for sure.

I would run the IM until you can source another, it will not be that bad. You could always port match it but if you plan on sourcing a proper IM then it may not be worth it.