The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Opinions on what 6.0L LQ9 into LSx UPGRADES to do??

skoffice · 01-10-2011, 01:35 AM

IMO I would go with a bigger cam if you plan on using the L92 heads. They flow significantly more air than the cathedral port heads and you want to make full use of this flow. Also they require offset intake rockers that you would have to buy unless you find a set that comes with them. The manifold you would need would be the LS3 or any rectangle port manifold from the newer trucks that come with these heads. As for the fuel rails they are the same spacing, but I think the mounting points are different where the bolts go into the manifold so you would have to check on that. I guess the real question is how much money are you trying to spend and what are you tryin to accomplish with the engine?

01-10-2011, 01:35 AM	#2
skoffice Registered User Join Date: Apr 2007 Location: Elk Grove, CA Posts: 375	Re: Opinions on what 6.0L LQ9 into LSx UPGRADES to do?? IMO I would go with a bigger cam if you plan on using the L92 heads. They flow significantly more air than the cathedral port heads and you want to make full use of this flow. Also they require offset intake rockers that you would have to buy unless you find a set that comes with them. The manifold you would need would be the LS3 or any rectangle port manifold from the newer trucks that come with these heads. As for the fuel rails they are the same spacing, but I think the mounting points are different where the bolts go into the manifold so you would have to check on that. I guess the real question is how much money are you trying to spend and what are you tryin to accomplish with the engine? __________________ 1964 C10 Shortened Shortbed Cammed LQ9 P&P 1967 C10 Trophy Truck BB 438 (soon to be worked on again)