LQ9 with LS3 Heads NEED CAM HELP!!! PLEASE - LS1TECH - Camaro and Firebird Forum Discussion



Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

LQ9 with LS3 Heads NEED CAM HELP!!! PLEASE

Reply
 
Thread Tools Search this Thread
Old 03-16-2017, 04:01 PM   #1
Registered User
Thread Starter
 
Join Date: Mar 2017
Posts: 2
Question LQ9 with LS3 Heads NEED CAM HELP!!! PLEASE

I have a 1987 Cutlass with 3.73 gears, a 2003 LQ9 with the matching 4L60E tranny. I also have a set of LS3 head that will be port and polished that i would like to put on my LQ9. I would like to know if the cams listed below will work for a DD (at least 80miles/day) or if you would recommend a custom grind. Also what Stall Converter would be best for a DD with the cams below. Will a dual spring with the max lift of .650 work? i would like to see around 475whp with at-least 14mpg if possible

Xer 273HR (224/230 .581/.588 114) or
LSr 273Lr HR12 (223/231 .610/.617 114+2)

Which of the 2 cams listed best for a DD lq9 with ls3 Heads?
Will a dual spring with the max lift of .650 work?
Stall size?
Valve Spring size?
Obnes Saintelot is offline   Reply With Quote
Old 03-16-2017, 09:16 PM   #2
TECH Fanatic
iTrader: (6)
 
Join Date: Apr 2013
Location: S.A., TX
Posts: 1,223
Default

1. Either cam will work fine as a daily driver.

2. A set of .650" springs is exactly what I'd use. Specifically, I'd go with a set of PAC 1221 springs. --->> http://www.racingsprings.com/LS-Engi...-1221/Item/766

3. A good 3000 stall converter.....I like Yank, Circle-D and Vigilante.

4. 475HP to the wheels is a bit of a stretch. I would think you'd see something around 430-450 and maybe 16 mpg.....depending on the nature and amount of your city driving.

5. Long-tube headers and at least a 2 1/2" duel exhaust are a must!

What conversion kit are you gonna use for the install? I went with Muscle Rods. --->> http://www.brphotrods.com/products/7...cts/index.html

You'll probably need a costume made (for length) driveshaft......so be prepared for that possibility.

Best of luck!!

KW

Last edited by KW Baraka; 03-16-2017 at 09:22 PM.
KW Baraka is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Best Cam and Heads for lq9? Hotrodlanepdf Generation III Internal Engine 7 11-28-2016 01:08 PM
ls1 cam for DD LS99TransAm Generation III Internal Engine 8 04-20-2016 12:54 PM
NA Cam Turbo Build Unachievable Forced Induction 8 09-09-2015 07:55 PM
Turbo/ cam match questions transaman98 Forced Induction 20 05-28-2007 04:00 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 03:51 PM.


 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: