Dorman 615-183X intake

[65standard]

Has anyone used this aftermarket truck intake manifold? It looks good and with a little bit of work, it could look as good as the LS6 intake on the outside. It appears to be a direct replacement for the ugly truck intake for gen III motors.

The trailblazer SS intake seems to be for gen IV motors.

[XwalkerX]

but how well does it flow?

the stock truck intake manifold actually flows VERY well

[65standard]

I'm hoping it flow as good if not better than the stock truck intake. I just can't use the stock intake because it is too ugly. I'm building a hi-po 6.0L on a frame off restoration.

[XwalkerX]

I cant deny it looks much better.

im just saying personally I would only consider it after finding a flow chart or dyno chart VS the stock intake manifold.

[65standard]

Agree, that is way I'm hoping someone has tried this intake already.

[XwalkerX]

found this thread which had a pretty good side by side of the two

http://www.ls1truck.com/forums/power...ariants-2.html

[65standard]

Thanks for the link.

[roundhouse]

google up some pics of "shaved intake"

[Chris Coufal]

I looked at those also. Seems like most of the chatter I saw about them was related to them holding boost. Like you, I want to get rid of the UGLY truck intake.....and the LS6 used intakes are not very cheap. Everything I read stated that with some mild porting these would be great intakes. I'm just not sure the time it will take to clean them up is worth the cost difference.

[65standard]

Well, I ordered the Dorman 615-183X intake. Not sure what is different from the Dorman 615-183 intake. I'll let you guys know if it works out or not.

[Chris Coufal]

GL....I purchased a complete LS6 intake off ebay today for $350 shipped.

[65standard]

I can't use a car intake. I would have to change everything. The Dorman intake was $199 shipped. Both truck intakes out performed the LS6 intake.

[Chris Coufal]

Originally Posted by 65standard

Both truck intakes out performed the LS6 intake.

That's not what I have read.....the truck intake out performs the LS1 intake. The trailblazer intake is the better one that really shines. The LS6 is about 15hp average for everything I have read. And ya.....I'm having to swap water pumps, TB's and run some adapters for the injector connectors.

[65standard]

According to Hotrod, the trailblazer intake out performed the LS6 intake in power and torque everywhere.

[Chris Coufal]

Originally Posted by 65standard

According to Hotrod, the trailblazer intake out performed the LS6 intake in power and torque everywhere.

You are right about the TBSS intake .....I'm referring to the stock truck intake. You stated "both" truck intakes out perform the LS6 intake. If you are referring to this test they did.....it was also done with cam and heads.....not stock pull-outs. http://www.hotrod.com/features/1507-...ifolds-tested/

Hard to compare apples to apples.

LS1- 535
LS6- 557
TBSS- 562
stock truck- 549

And I was assuming you were using a pull-out and just doing a swap. If that's not the case then I stand corrected and apologize. I'm no expert and am learning as I go through my build.