Ls6 intake manifold fitment
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Teching In
Joined: Feb 2017
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Ls6 intake manifold fitment I'm in the process of installing a ls6 intake on my 98 base corvette with an ls1. I took out the fins underneath the intake but it seems like my coolant line are higher than normal. The passenger side is lifted about an 1/8". If I push that side down it seems like it will work but I also don't want to start putting the bolts in and crack the new manifold. Is this a common problem when you take out the fins? I understand I can delete the coolant lines but from everything I read this route shouldn't cause any issues. Any advice is appreciated.
I ran them under an ls6 intake years ago and I think I didn't have to flatten them. I did have to flatten them when I ran them under a fast intake to clear.
https://ls1tech.com/forums/generatio...take-pics.html
https://ls1tech.com/forums/generatio...take-pics.html
Teching In
Joined: Sep 2016
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From: North Carolina
You do not have to change the coolant lines. I have a 98 and grinded down the fins on my ls6 intake to clear the lines. Take a hammer and tap the lines down lightly to get them flatten out. Also while you are there change out those knock sensors.
I used 4" grinder with a flapper wheel disk for the bottom of my intake. Take you time and make sure to buy a set of new intake gaskets and some foam for the front and back to keep water out of the knock sensors.
I used 4" grinder with a flapper wheel disk for the bottom of my intake. Take you time and make sure to buy a set of new intake gaskets and some foam for the front and back to keep water out of the knock sensors.
Thread Starter
Teching In
Joined: Feb 2017
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I chiseled down the fins and then took sand paper to see where all my high points were still and then brought those areas down to be flush but it seems like my coolant line coming out by the throttle body is raised up higher than normal. I really didn't want to go the route of doing the LS6 coolant line block off kit but I guess I never came across people flattening out the lines. I'll try doing that with caution.
Thanks for all the input!
Thanks for all the input!
