PerformanceTrucks.net Forums

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

AI Heads on a 5.3 Silverado

Thread Tools
 
Search this Thread
 
Old 11-22-2011, 08:55 AM
  #11  
TECH Fanatic
iTrader: (1)
 
BrutalSierra's Avatar
 
Join Date: Feb 2011
Location: League City,TX
Posts: 1,309
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by gnd111
So you not only have a Fast 102 but a ported Fast 102? If so you may have more than a stock block 5.3 needs...
I concur! A fast 90mm would be your best bet! Especially for a truck. The 90mm would really help lowend torque.

I really believe a 102mm is overkill and hurting performance.
BrutalSierra is offline  
Reply Like
Old 11-22-2011, 02:28 PM
  #12  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default
Well I've been looking for a 6.0 block, so I am still in limbo. Unless some know where I can get a block. The trans I will beef it up to a 4l65e. Do you think that won't be a strong enough trans?
N/ALS1 is offline  
Reply Like
Old 11-22-2011, 02:36 PM
  #13  
TECH Addict
iTrader: (4)
 
SweetS10V8's Avatar
 
Join Date: Jun 2004
Location: Michigan
Posts: 2,584
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by gnd111
So you not only have a Fast 102 but a ported Fast 102? If so you may have more than a stock block 5.3 needs...
Incorrect....

Originally Posted by BrutalSierra
I concur! A fast 90mm would be your best bet! Especially for a truck. The 90mm would really help lowend torque.

I really believe a 102mm is overkill and hurting performance.
Even more wrong, dont guess. Tell us how a 102mm is overkill and hurts performance?
SweetS10V8 is offline  
Reply Like
Old 11-22-2011, 03:32 PM
  #14  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default
@sweets10v8- i was thinking that but was unsure.
I know the bigger cubes would be great but I'm trying to build what I have and still try to save for a 67' Nova powered by a 6.0 with the top end by AI with the FAST 102mm intake kit w/ ezefi.
N/ALS1 is offline  
Reply Like
Old 11-22-2011, 03:41 PM
  #15  
Moderator
iTrader: (19)
 
TXsilverado's Avatar
 
Join Date: Jan 2005
Location: Humble Texas
Posts: 18,316
Received 222 Likes on 148 Posts
Default
that's a massive top end for such a tiny cam IMO. i have a fully built transmission and fully forged 408 to sell that could really take advantage of that top end you have...
TXsilverado is offline  
Reply Like
Old 11-22-2011, 04:59 PM
  #16  
TECH Fanatic
iTrader: (1)
 
BrutalSierra's Avatar
 
Join Date: Feb 2011
Location: League City,TX
Posts: 1,309
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by SweetS10V8
Incorrect....

Even more wrong, dont guess. Tell us how a 102mm is overkill and hurts performance?
The 5.3 is a smaller motor, the 92mm would help add more power to the overall powerband as apposed to pushing the power to a higher rpm.

I've seen this on bigger LS1 motors.

It would make more peak hp but no soo much throughout the power band.
BrutalSierra is offline  
Reply Like
Old 11-22-2011, 05:35 PM
  #17  
TECH Enthusiast
Thread Starter
iTrader: (1)
 
N/ALS1's Avatar
 
Join Date: Oct 2011
Location: Baytown
Posts: 528
Received 1 Like on 1 Post
Default
TxSilverado pm me price on 408
N/ALS1 is offline  
Reply Like
Old 11-23-2011, 11:12 AM
  #18  
TECH Addict
iTrader: (4)
 
SweetS10V8's Avatar
 
Join Date: Jun 2004
Location: Michigan
Posts: 2,584
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by BrutalSierra
The 5.3 is a smaller motor, the 92mm would help add more power to the overall powerband as apposed to pushing the power to a higher rpm.

I've seen this on bigger LS1 motors.

It would make more peak hp but no soo much throughout the power band.
Again an incorrect assumption, the size of the throttle body opening has ZERO to do with power band!!

The LSXRT is the most powerful cathedral port intake FAST has ever made. It makes more power than the 78/90/92/102 car style manifolds.
Last edited by SweetS10V8; 11-23-2011 at 11:19 AM.
SweetS10V8 is offline  
Reply Like
Old 11-23-2011, 11:35 AM
  #19  
TECH Fanatic
iTrader: (1)
 
BrutalSierra's Avatar
 
Join Date: Feb 2011
Location: League City,TX
Posts: 1,309
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by SweetS10V8
Again an incorrect assumption, the size of the throttle body opening has ZERO to do with power band!!

The LSXRT is the most powerful cathedral port intake FAST has ever made. It makes more power than the 78/90/92/102 car style manifolds.

Not throttle body, I'm talking about the intake manifold.
BrutalSierra is offline  
Reply Like
Old 11-23-2011, 12:35 PM
  #20  
TECH Addict
iTrader: (4)
 
SweetS10V8's Avatar
 
Join Date: Jun 2004
Location: Michigan
Posts: 2,584
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by BrutalSierra
Not throttle body, I'm talking about the intake manifold.
Like i said, the LSXRT is the most powerful intake FAST makes.....in all rpm ranges.
SweetS10V8 is offline  
Reply Like



Advanced Search
Quick Reply: AI Heads on a 5.3 Silverado


Reply Closed Thread Share

All times are GMT -5. The time now is 05:48 AM.