Genevieve

So finally some progress is being made on my project untill last night. We have the engine on the stand and noticed that the stock casting exhaust manifolds will not clear the "6th" bolt or the extra bolts for the #7 and #8 cylinder. This is an issue because the IPS turbo kit was designed to re-use these manifolds for their strength and their heat retention. My first thought was to try and use a shorty header designed for the 5th gen but I am not sure if they will clear the extra bolts or if they are structurally strong enough to support the turbos? Obviously the best option is a custom turbo manifold but my last quote of $2,000 seems a bit rough. Any thoughts and suggtions are greatly appreciated.

Thanks,

Fbodyjunkie06

iTrader: (10)

Hooker has a new cast iron manifold out for ls swaps just saw it in new GMHTP. Supposedly a block hugger design so I dunno if it will help, but they may work.

Cam72aro

iTrader: (28)

From what I have seen those manifolds are a copy of the 5th gen ls3 manifolds. Op, what stock manifolds come with the kit?

SKULL

iTrader: (7)

you could buy the turbo manifolds that obx makes and sells on ebay. a guy is running them on his lsx with twins

Genevieve

Holy fast response batman, thanks guys.


I will look into them.

Stock 5th gen ls3 manifolds are re-used. The kit doesn't come with anything.

I will look into those as well, thanks

LS1NOVA

iTrader: (12)

I built a turbo kit for an 06 GTO with a 6 bolt ERL/Trick Flow combo and used C6 manifolds with a header flange as a spacer with two gaskets. Thats the cheap way out.