Intake manifold bolt pattern diferences?

[SchoolBoy]

Ok guys I have heard that there are one or two bolts that are different between the 84 and 86 manifolds. I am wanting to know if my head will accecpt an 86 intake.....

3974


If it will what else would I need to pull off of an 86 tbrid to make this work on my svo? The dipstick tube and bracket, bracing, anything else?

[Raven855]

The 86 head has an extra bolt hole. You could use the 86 manifold as is or you could drill and tap your head for the additional hole. In addition the fuel rail is different, so grab the fuel rail. On the bottom side of the intake you will find the fan coolant switch. It is different on the 86. The 86 is a larger diameter and has 2 wire connections on it, while the 84 has 1. Add a jumper to ground and adapt the connector on your harness. They are the same temperature wise. There is also a knock sensor on the manifold that you will not use. The schema and knock algorithms are different between the 2, so just unplug it and when you hear knock get out of it quickly.

[SchoolBoy]

I have a pe ecc in the car already so I want to run the knock sensor....

[Raven855]

How did you handle the boost controller? Running a manual?

[SchoolBoy]

How did you handle the boost controller? Running a manual?

Yep I have the gillis valve