Putting a ls6 intake man. on my 98 ls1. Should I put two coolant pipes on the ls6 or just one.

Putting a ls6 intake man. on my 98 ls1. Should I put two coolant pipes on the ls6 or just one.

First, not aware of any coolant pipes on the intake manifold.

Second, are you talking about the steam vents? On the 98 they come from the heads and run up under the manifold.

The steam vents may interfere. You may need to get the updated pieces. It blocks the rear vents and only links the front vents.

:iagree: he is right on this.

Here's what you need to convert:
GM#12602544 and 2x GM#12602540
$37 and $7ea @ Partstaxi. You can re-use th existing little rubber/metal washers.

Hey good luck buddy!

I just did the front cross over and used the block offs in the rear. Works fine.