Im building a mild LQ4 for a work truck that will see some moderate towing. All I plan to do as of now is add some lightly ported 243 heads, Comp Cams 212/218 LSx Cam "HIGH LIFT", long tube headers, a tune, and a good exhaust. This engine will never see 6000 rpms. Would adding an LS6 intake be worth the trouble, or will the factory one off my 04 LQ4 engine work well at the lower rpms I will be running?
Wouldn't be worth changing all the accessories, water pump pully, alt bracket, crank pulley. Stock intake would tow better, no low end loss. Are you adding a converter?
chevyboy.520
06 ecsb 5.3, FAST LsxRT 102, FTI cam! LT's, tru dual, magnaflow, 3400 stall, Performabuilt lvl2, 4.10s!
PRC stg 2.5 5.3 heads Awaiting to go on!
Nope. Staying with a stock converter.
I'd stay with the stock intake or a TBSS intake
chevyboy.520
06 ecsb 5.3, FAST LsxRT 102, FTI cam! LT's, tru dual, magnaflow, 3400 stall, Performabuilt lvl2, 4.10s!
PRC stg 2.5 5.3 heads Awaiting to go on!
i did the swap back in the day and gained nothing. the truck manifold is under rated IMO.
old mod list: H/C/I/N/E/G 408
new mod list: 5.3, gears/posi, mufler and tune : (
Good to know. Thanks guys.
Also any gains you see with an LS6 will be to the upper RPMS
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
Google search Max NA HP truck intake. According to the threads you will find the truck intake is capable of exceeding both your goals and mine. If you will never see 6k the truck intake is ideal. I shift at 6400 and the truck intake serves me well.
99 silverado 2500 4x4 ec lb, lq4 with 243 heads, pace setter long tubes, true duals with x pipe and bullet mufflers, comp 222 224 112 cam, 8.1 truck injectors, 4l80e with 2800 stall, 373 gears, 285 75 16 tires, efi live tune in progress, 350rwhp 360tq, 11.8 average mpg mixed driving
get a TBSS intake
I also did the swap on my 5.3 a while back and i couldnt tell any diff at all...maybe it was because i forgot to shave the ridges off the bottom of the intake and it couldnt sit flush over my coolant cross over and i had a massive intake leak. The truck intake has long runners and in theory is designed to help the lower rpm power. If your never gonna go over 6K save your money and buy somethin else. thats my
2008 GMC Sierra SLE....370ci LY6 with some goodiesSOLD
1995 C2500- LS1 swap with a mp112
build thread- http://www.ls1truck.com/forums/lsx-t...-ls1-swap.html
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