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

03 silverado heads

Thread Tools
 
Search this Thread
 
Old Jun 30, 2015 | 09:31 PM
  #1  
04450r's Avatar
Thread Starter
Registered User
 
Joined: Jun 2015
Posts: 45
Likes: 0
Default 03 silverado heads

Looking for or a direction to go with a set of heads for a 03 5.3 silverado. If anyone has a set forsale or options what to do
Reply
Old Jul 2, 2015 | 12:14 PM
  #2  
53bowtie's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Mar 2007
Posts: 1,614
Likes: 14
From: Detroit, MI
Default

budget?
Reply
Old Jul 2, 2015 | 12:42 PM
  #3  
04450r's Avatar
Thread Starter
Registered User
 
Joined: Jun 2015
Posts: 45
Likes: 0
Default

Well we was on a budge but done busted that one so really isn't a price limit but like to save as much as possible
Reply
Old Jul 2, 2015 | 03:15 PM
  #4  
bobfig's Avatar
TECH Apprentice
 
Joined: Oct 2010
Posts: 363
Likes: 3
From: Houston, TX
Default

are you stock dished pistons?

ether way get a hold of some 243/799 heads and have them milled .020" and use some comet .041" gaskets. would give you around a 9.9:1 compression ratio and a good quench to help with detonation. these heads also flow better then the 862/706 heads on there now.

if you want to spend more have them ported by some one that has good reputation.

243/799 heads are around $450-600 and porting are another $700+.
Reply
Old Jul 2, 2015 | 07:53 PM
  #5  
04450r's Avatar
Thread Starter
Registered User
 
Joined: Jun 2015
Posts: 45
Likes: 0
Default

That's what my buddies at btr racing told me. But heck looking for a set of heads for it really. Last part I need to start the build
Reply
Old Jul 2, 2015 | 08:13 PM
  #6  
bobfig's Avatar
TECH Apprentice
 
Joined: Oct 2010
Posts: 363
Likes: 3
From: Houston, TX
Default

imo they are worth it. had to get my 706 heads replaces as they cracked on me and i had 799 put on after getting them milled .030". now i have better flow and a 9.9:1 compression. feels good all over the power range yet better above 3000rpm.
Reply
Old Jul 2, 2015 | 11:55 PM
  #7  
04450r's Avatar
Thread Starter
Registered User
 
Joined: Jun 2015
Posts: 45
Likes: 0
Default

they should help out bc I went with a tbss intake, tbss throttle body ported out, btr cam, Longtubes, cold air intake and straight pipe. Only thing left is heads
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
5.3lSilverado
GM Engine & Exhaust Performance
25
Aug 29, 2016 12:48 AM
chopperloco
Trucks and SUV Classifieds
15
Jul 10, 2016 10:45 PM
D1SCSS
GM Parts Classifieds
44
Jan 25, 2016 10:14 PM
thunder550
Trucks and SUV Classifieds
9
Oct 8, 2015 04:53 PM
Offroadunleashed
Trucks and SUV Classifieds
0
Jul 20, 2015 02:25 PM




All times are GMT -5. The time now is 11:27 AM.