i just bought a new 2006 chevy crew cab 6.0l i was looking at the passenger side of the manifold and it looks like there is a crack between the 2nd and 3rd spark plug... i took it to the dealer and they told me its suppose to be like that cause of heat reasons. can someone tell me is this is true or not..
thanks

 

Are you looking at the heat shield or the actual surface of the manifold?

 

auctally surface of the manifold where it bolts right up to the engine.. i can take a pic at lunch and post it

 

here are some pics i took

 

When I swapped mine out for the dynatechs I believe I noticed that on one of mine too, don't remember which side though. It was in the middle on the flange like you are describing.

 

i have never seen a manifold like that. i have allways had cars this is my frist truck all the modding i have done with my cars i have never seen anything like that..im going boosted and i dont want it to be a problem with leaks or antyhing..i just dont trust dealers and the crap the try and pull. and i havent had a chance to look under the hood of another chevy..

 

They are ALL like that and nothing to worry about. Thats why there is a bolt on both sides of it. It was planned.

 

ok thanks for the info guys i just wanted to make sure..