87 intake manifold & plenum swap.

[matt921]

HI everyone., So I have been searching all day and have only found a few people who have done this. I know I have to drill the return line hole in the manifold to keep the stock location of the hot air. My main question is do I have to modify anything to make this work. I seen I would have to cut my upper plenum and modify it for the turbo. Is there any other modification I would need to do to the manifold to make this work. If you have one on your set up can you please help me out shed some light.
Thank you everyone

 

[sy1322]

What are doing, converting?

 

[sy1322]

I'm almost done with mine, cut 84 intake, welded 86 upper plenum, gutted, and some other stuff

 

[sy1322]

Look at my page intercooled 84

 

[matt921]

I have the whole 87 intake lower upper plenum 62mm tb. I am just going to swap the whole thing but leave ghee turbo on the stock location.

 

[sy1322]

Yea that's the way I got mine

 

[matt921]

Did you have to modify the upper plenum?

 

[sy1322]

Somebody else did, and the te-60 turbo fit, tight fit though

 

[matt921]

Awesome well I'll have to do that. Do you have any pictures

 

[cwmccray]

 

[cwmccray]

 

[cwmccray]

 

[sy1322]

Nice!!!

 

[matt921]

Cwmccray. Did you weld something on the back of the lower to make it flat?

 

[cwmccray]

Yes

 

[matt921]

Why.what's the reason for it

 

[Justa_v6]

Here is my set up
87 intake and modified upper plenum.
TA-49 turbo.


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[matt921]

Pretty. Do you think you lost anything from modifying the upper.

 

[Sherif]

I put my turbo oil drain line into the back of the block instead of into the intake manifold. I drilled it out and threaded it. also shaved my plenum down and welded on a back plate just like all of these guys who have done similar mods and honestly looking at the plenum, I couldn't see how it wouldn't effect the air flow. I mean after all the only purpose of the upper plenum is to help direct the airflow

 

[Sherif]

also block off the EGR, saves a lot of space in my opinion, and it looks pretty