bluebommer07

iTrader: (5)

i know everyone has or is running tr,tsp and so on cams well i want to get some insight on lunati cams and a lq4, this will be a daily driven motor and will have all the normal mods also, but has anyone seen or know how these to cams fair in a lq4 with 243 or 317 heads with/without work done to them. thanks.

first is 223/230 .534/.544 114
2nd is 227/233 .584/.584 113
3rd is 222/228 .567/.567 113
4th is 224/224 .560/.560 112

Vortec350ss

iTrader: (20)

I think that my first choice would probably be the 3rd option. I think option 2 is slightly too big for a DD, and option 1 is too big for the small amount of lift it has. The 4th option looks great too, but I think that these engines like a slight split to take advantake of the larger intake valves in comparison to a 5.3 head.

With #3 it looks like you may also be able to use LS6 springs as well, but that depends on the ramp rates of the cam. I would find a set of 243's to go along with this cam, and if you can use the springs you'll be in great shape for short money.

Thats enough duration on a tight enough LSA to have some lope to it too, but not enough to really kill drivability. It should sound real clean.

bluebommer07

iTrader: (5)

i kinda like the overall all number look of the 3rd choice myself

kent91011

iTrader: (1)

I just ordered the voodoo 227/233. I have a lq9 getting the stock heads worked with valve job and milled down to 68cc's.

Vortec350ss

iTrader: (20)

Is the engine in the truck yet? If not I would look into AI 243/317 heads and one of their cams to go with it. Their heads show crazy power gains, especially over untouched 317's. Their cam packages also seem pretty reasonable too. The combination of the 2 would be worth over 100 HP on an otherwise untouched LQ4. If you have no plans of boost you could go with something smaller than the stock 243 chamber to bring compression up around 11.0:1.
Combine that with all the right bolt on mods and you're lookin at close to 500 HP at the crank... not too shabby.

bluebommer07

iTrader: (5)

no engine is not in truck right now. honestly im not looking to have the much hp, this will be a budget builder and just a little toy nothing major im looking to accomplish or do with the truck.

Vortec350ss

iTrader: (20)

Well then find some stock 243's and don't go any bigger than cam choice #3. If you do you will really start to feel it in the drivability of the engine and stall combo.

bluebommer07

iTrader: (5)

im either getting yank 3000 or circled 3200

bluebommer07

iTrader: (5)

whats the stock cc on the heads and or they the 317s if so what all u getting done?

darnie

iTrader: (1)

why not a tr 220? i got one in my truck "5.3" tho? but i love it needs a stall tho