GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

4.8 performance

Thread Tools
 
Search this Thread
 
Old Dec 11, 2009 | 09:43 PM
  #1  
209393's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 17
Likes: 0
From: houston tx
Default 4.8 performance

i have a 2007 classic 4x4 with a 4.8 my debate right now is wut cam i should get i know u guys r sick of hearing about cam selection.. its between the ls6 and the ls1 hot cam.. here is the list of parts i have k&n cold air intake jba shortys no cats to a cherrybomb extreme custom tune by a local shop. i plan on doin a cast iron 5.7 when im through with school n it gets some down time than i plan on runnin a ms4 but thats atleast a year from now i want something for those woot nights with my buddys now
Reply
Old Dec 11, 2009 | 09:48 PM
  #2  
charcoal03silvy's Avatar
TECH Addict
iTrader: (1)
 
Joined: May 2009
Posts: 2,387
Likes: 1
From: South OKC/ Moore, OKlahoma
Default

Punctuation FTL......

For a 4.8 go 212 218. Tried and tested many times with great results.
Reply
Old Dec 11, 2009 | 09:52 PM
  #3  
209393's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 17
Likes: 0
From: houston tx
Default

i dont really know anything about cams kinda on joind to get some lol just thought of the gm cams cause my buddy at mounment chevy said he they sold th ls6 almost every other day for 4.8 n 5.3 trucks so i 212 218 duration? i forgot to state i want a rough idle cam with a slower lope
Reply
Old Dec 11, 2009 | 10:09 PM
  #4  
charcoal03silvy's Avatar
TECH Addict
iTrader: (1)
 
Joined: May 2009
Posts: 2,387
Likes: 1
From: South OKC/ Moore, OKlahoma
Default

get it off the shelf with a 112 LSA, and i guess have your tuner make it idle at a lower RPM for the lope.... There's tons of useful info on cams here. Search around
Reply
Old Dec 11, 2009 | 10:21 PM
  #5  
209393's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 17
Likes: 0
From: houston tx
Default

i kinda like this one here http://www.youtube.com/watch?v=7MwELq2zSxU i know it is really what the motor wants not what i want to throw at it but how do you think this will behave in my 4. i've been lookin online and i think i found the one im going to get the texas speed 220/220 its .581/.581 on a 112lsa

Last edited by 209393; Dec 11, 2009 at 10:29 PM.
Reply
Old Dec 11, 2009 | 10:24 PM
  #6  
charcoal03silvy's Avatar
TECH Addict
iTrader: (1)
 
Joined: May 2009
Posts: 2,387
Likes: 1
From: South OKC/ Moore, OKlahoma
Default

TOO big for a 4.8
Reply
Old Dec 11, 2009 | 10:29 PM
  #7  
209393's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 17
Likes: 0
From: houston tx
Default

the texas speed 220/220 is ?
Reply
Old Dec 11, 2009 | 10:33 PM
  #8  
charcoal03silvy's Avatar
TECH Addict
iTrader: (1)
 
Joined: May 2009
Posts: 2,387
Likes: 1
From: South OKC/ Moore, OKlahoma
Default

No no no, the one in the vid is too big. A 220 will be ok
Reply
Old Dec 11, 2009 | 10:40 PM
  #9  
209393's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 17
Likes: 0
From: houston tx
Default

i was jus showing the kind of idle i like, i'm sry for being a complete idot when it comes to internal enigne parts. This is going to be my first teardown/build so the 220 from tsp will be ok? What else should i get with it i know better springs im thinkin ls6 springs, a guy at school said i should get hardened pushrods also
Reply
Old Dec 11, 2009 | 10:41 PM
  #10  
charcoal03silvy's Avatar
TECH Addict
iTrader: (1)
 
Joined: May 2009
Posts: 2,387
Likes: 1
From: South OKC/ Moore, OKlahoma
Default

I'd go with some better springs IMO. Hardened PRs are definitely a plus.
Reply



All times are GMT -5. The time now is 10:02 AM.