I am looking at the big ***** thumpr cam kit from comp cams. I need info on if this will work on the ls4 and if I need anything else. Or if the kit contains everything I need. Please let me know. I need help on This. Cam kit link below!

http://www.compperformancegroupstore...ory_Code=ThKHR

 

This says

Fits '58-'021 262-400 cid Chevy Small Blocks2

Is that what you have?

 

I have 5.3l. 325CI

 

What year?

 

2007 impala SS

 

Hmm. Well that isn't 1958 to 2002 . Best keep looking.

 

If you delete DoD you will have many more cam options.

 

Yes I am planning on doing the dod delete when I do a cam

 

I just want some help finding the biggest cam I can and only having to replace the Cam, Lifters, Valve Springs, Retainers, Locks, Seals, & Timing Set

 

Hopefully someone with more Ls4 knowledge will pop in here, just trying to give ya ideas.

If you do the DoD delete and 3 bolt cam gear sprocket conversion, also different intake? then you can run any cam made for a Ls1, Ls2, Ls6 which would make your options unlimited.

 

For sure he will be installing an intake and injectors with rails when the heads come off, bigger throttle body, headers, high stall converter as all are a must for use with the biggest cams.

 

Alright thanks for the help. That will help me choose a bigger one. I am planning on doing the ls6 intake on it

 

Yeah I'm going to get a set of Doug thorly headers. Bigger injectors.

 

As already stated, once you delete all the dod parts any ls cam will fit. You'll need a different intake and full exhaust for sure. The specs of that cam are extremely large for a 5.3. In a street driven 5.3 I feel like low 230s duration is about as large one should go.

 

I believe the 2007 Ls 4 monte ss cam is
.482 / .490 cheapest bang for the buck is comp cams roller rockers sku # 19025-16 $471.12 for the set. They are 1.82:1 @ tickperformance. Effectively bringing valve opening to .542 /.550. Valves will hit the pistons at .600. Holley tall valve covers are needed for clearance pn 241-111 $219.95 / pair with hardware. Also a nice hard set of pushrods from summits pn1457325 $ 104.97 / set. Save your money and don't do an intake / throttle body mod unless you plan on turning crazy rpms.
Also with the MAS , just cut away the webing with a razor blade being careful not to touch or Nick the sensor wires. Your car will be drivable to the dyno / tuner but will run like crap on the way.also our factory injectors have a wide flow range so just to give ya stuff to think about. Hope this helps.

 

Check out BRIAN TOOLEY RACING... call them and tell them what you want and what you have they can custom grind you a cam for your needs. Also they sell AFM/DOD Delete kits for our LS4's

 

Thanks for the insight on custom cam grinds. As for the dod delete kit I'd suggest using the Chevy kit # CMB-09-0026 at summit for $390.52.