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

lQ4 part two....

Thread Tools
 
Search this Thread
 
Old Mar 27, 2012 | 04:09 PM
  #11  
Team Paulie's Avatar
Thread Starter
Registered User
iTrader: (1)
 
Joined: Sep 2009
Posts: 631
Likes: 0
From: Montana
Default

I have put about 30+ bottles though the 4.8,I spent all my coin on the motor and the machine shop and parts. The tune is always on the fat side,and I run TR-6 plugs.

SO....any ways,the cam is 228R with a 110LSA,this thing should chunk very good.

Could I mill a set of 799's .030's and still get away with using the stock intake?
Reply
Old Mar 28, 2012 | 10:20 AM
  #12  
Team Paulie's Avatar
Thread Starter
Registered User
iTrader: (1)
 
Joined: Sep 2009
Posts: 631
Likes: 0
From: Montana
Default

Every one keeps saying to mill the heads or dont mill the heads,could you reuse the stock intake without any mods?
Reply
Old Mar 28, 2012 | 04:45 PM
  #13  
01silvy's Avatar
TECH Enthusiast
 
Joined: Sep 2009
Posts: 670
Likes: 5
From: NC
Default

Well run what you got and just keep an eye on tune, you should be alright.. i think you can mill .030 and not run into any intake fitment issues.. if you mill more than that you will probly startto have problems.
Reply
Old Mar 29, 2012 | 09:08 AM
  #14  
Team Paulie's Avatar
Thread Starter
Registered User
iTrader: (1)
 
Joined: Sep 2009
Posts: 631
Likes: 0
From: Montana
Default

Theres that much room to play with the intake? DAAAMMMMEE
Reply
Old Mar 29, 2012 | 09:42 PM
  #15  
01silvy's Avatar
TECH Enthusiast
 
Joined: Sep 2009
Posts: 670
Likes: 5
From: NC
Default

yeah, you can usually mill them about .030" without fitment issues. Anymore than that and it starts to get alittle tight. I just remembered your running 799 heads, they will be a boost in compression already in stock form.. What compression ratio are you shooting for?
Reply
Old Mar 30, 2012 | 06:10 AM
  #16  
Beatdown Z's Avatar
Laid Back
15 Year Member
iTrader: (18)
 
Joined: Jan 2007
Posts: 2,389
Likes: 10
From: Newark, DE
Default

People have gone .050" without issue...
Reply
Old Mar 30, 2012 | 09:20 AM
  #17  
Team Paulie's Avatar
Thread Starter
Registered User
iTrader: (1)
 
Joined: Sep 2009
Posts: 631
Likes: 0
From: Montana
Default

Originally Posted by 01silvy
yeah, you can usually mill them about .030" without fitment issues. Anymore than that and it starts to get alittle tight. I just remembered your running 799 heads, they will be a boost in compression already in stock form.. What compression ratio are you shooting for?
I was trying to look around to find CC and ratios for the heads,I could only find that the stock 317 heads had 71cc chambers and the 799 heads I think had found that they were a 61 or 60cc heads,which would be,as you said be perfect for what I got going on and I would not cut em down.

Last edited by Team Paulie; Mar 30, 2012 at 09:29 AM.
Reply
Old Mar 30, 2012 | 08:23 PM
  #18  
01silvy's Avatar
TECH Enthusiast
 
Joined: Sep 2009
Posts: 670
Likes: 5
From: NC
Default

Yeah, i would leave them alone and only mill maybe ".010 if you had to clean them up alittle.
Reply
Old Mar 31, 2012 | 09:54 AM
  #19  
Team Paulie's Avatar
Thread Starter
Registered User
iTrader: (1)
 
Joined: Sep 2009
Posts: 631
Likes: 0
From: Montana
Default

The 799 heads are junk......gonna go back to using the stock 317's and mill.020's off em, I know those heads are good and not re welded like these 799's I got,turns out the 799's came off a envoy 5.3 engine and had a cracks in side the intake ports,got my money back and gonna use em towards the ending price.
Reply
Old Mar 31, 2012 | 03:52 PM
  #20  
01silvy's Avatar
TECH Enthusiast
 
Joined: Sep 2009
Posts: 670
Likes: 5
From: NC
Default

Dang that sucks, atleast you caught it before you bolted them on.. the 317's will flow well, just mill them like you said to bring the compression up alittle and let it ride.
Reply



All times are GMT -5. The time now is 12:59 AM.