2000.00 what to do with it. Help please.

[1slow01z71]

2001 or newer LQ4, all LQ9s will work. I would go with an LQ4 and try and find one that is an 05 or newer those come with the ls2 timing set which is a bit more stout and the rods from LQ9s which are beefier too. 05+ is what I would do with something around a 214/220 on a 114, good exhaust bias for the blower and wide lsa, but will haul ass with the low stall you want. Ask Daniel how he likes my cam choice for his truck

[txarkitekt]

+1 on Cody's comments regarding the 6.0L selection. And the cam is a good call too, but he could get away with something a little bigger---but yes, something with a bias towards the exhaust...maybe a 218/224 .563/.581 114 LSA. Oh, and I would also highly recommend you slapping on some LT headers. It will work well with the FI and cam...

[zeake]

+1 on Cody's comments regarding the 6.0L selection. And the cam is a good call too, but he could get away with something a little bigger---but yes, something with a bias towards the exhaust...maybe a 218/224 .563/.581 114 LSA. Oh, and I would also highly recommend you slapping on some LT headers. It will work well with the FI and cam...

No doubt about the headers. The poor thing is so choked up now you would not believe it.

[1slow01z71]

Alot of people will try and steer you towards bigger cams but the simple fact of the matter is smaller cams create larger torque down low and thats what makes a heavy ass truck fun to drive. You are going with a TIGHT stall so you need a good hit right off the line. The Whipples dont produce instant boost like the roots blowers do, the lysholms take a little to wind up all the way but they also have greater CFM potential so I would use a small cam to get you going and use the up top power potential of the lysholm to carry you through up top. A small cam is going to make your truck a tire frying beast when just toodling around town and nailing it. A larger cam will give you great top end but will be lacking a bit down low with a tight stall. If it was me I would go with a 3000 stall and step the cam up to a 218/224 or maybe even a 220/226. The 6 degree split has been shown to be the ticket on most blowers period unless you are running L92s then the splits get crazy something around 14-18* splits Heads arent that big of a deal on a blown app, I would hold off on that as your last mod unless you just want to go ahead and get it over with. You would gain around 40hp with a good set of heads from WCCH if not more but a cam is more bang for the buck. An LQ9 is nice but it is going to limit you on boost potential since it has a .6 higher CR then the LQ4 it will act better out of boost though. When it comes time for heads I would try and use WCCHs 74cc heads with a .06 HG to lower the CR as much as possible.

[zeake]

The whipple has no lag at all. It is instant power. The moment you start mashing the gas it goes.

[1slow01z71]

The whipple has no lag at all. It is instant power. The moment you start mashing the gas it goes.

I know it starts building boost but you arent instantly at peak boost are you? From the whipple and radix trucks Ive ridden in my observations were that the radix built full boost within 300-500rpm but it fell off up top, the whipple took about 1000-1500 with a small ass pulley to net 10#s of boost on a cammed 6.0 and carried it all the way to the shift and maintaned full boost after the shift. I imagine your boost comes on a little quicker since you are running a smaller motor and stock cam but throwing a bigger cam in there and more displacement means the charger has to breathe harder to fill the cylinders. And remember boost is a function of resistance so a bigger motor with a better flowing cam shaft has less resistance then a stock cam 5.3. Just my observation on what Ive seen and heard from first hand people.

[zeake]

I know it starts building boost but you arent instantly at peak boost are you? From the whipple and radix trucks Ive ridden in my observations were that the radix built full boost within 300-500rpm but it fell off up top, the whipple took about 1000-1500 with a small ass pulley to net 10#s of boost on a cammed 6.0 and carried it all the way to the shift and maintaned full boost after the shift. I imagine your boost comes on a little quicker since you are running a smaller motor and stock cam but throwing a bigger cam in there and more displacement means the charger has to breathe harder to fill the cylinders. And remember boost is a function of resistance so a bigger motor with a better flowing cam shaft has less resistance then a stock cam 5.3. Just my observation on what Ive seen and heard from first hand people.

Well I just thought my boost came on quick.

[zeake]

Another thought considering the LQ9 has 10 to 1 compression. Sell the whipple and buy some heads or keep the whipple.. . . . . . . .. . . Hell I am not sure.

[txarkitekt]

Good purchase Zeake!!!!
Ok..now for the mods...a cam kit is definitely the first thing to do. You can pick up a custom grind Comp cam and accessories for about $699 shipped from TSP. Like I said at the top of this page--I would go with a 218/224 .563/.581 114+3 LSA.

[1slow01z71]

It is a good cam and is a proven performer in his truck. The gt2-3 is similar, they definately have some weird grinds but they perform. I would keep the whipple if it was me. A set of heads isnt going make as much hp as a whipple on stock heads.