LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Bored TB

Thread Tools
 
Search this Thread
 
Old Sep 5, 2007 | 10:50 PM
  #1  
PEZ97T/A's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 57
Likes: 0
From: ATX
Default Bored TB

Hey if anyone out there bores TB hit me up i wanna bore my stock one to 52mm Thanx.
Reply
Old Sep 6, 2007 | 12:05 AM
  #2  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

The question is, how much do you want to spend? Because bored stockers are cheap on eBay.
Reply
Old Sep 6, 2007 | 01:19 AM
  #3  
ZONES89RS's Avatar
In-Zane Moderator
15 Year Member
iTrader: (25)
 
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
Default

^^^^X2
Reply
Old Sep 6, 2007 | 01:03 PM
  #4  
PEZ97T/A's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 57
Likes: 0
From: ATX
Default

Well should i buy a stocker or an aftermarket?
Reply
Old Sep 6, 2007 | 09:08 PM
  #5  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

For 52mm, buy a ported stocker. For 58 you have no other choice than aftermarket.
Reply
Old Sep 6, 2007 | 10:53 PM
  #6  
PEZ97T/A's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 57
Likes: 0
From: ATX
Default

What changes would i have to make tunnig wise from 52 to 58?
Reply
Old Sep 6, 2007 | 11:30 PM
  #7  
koolaid_kid's Avatar
TECH Junkie
iTrader: (21)
 
Joined: Jul 2005
Posts: 3,023
Likes: 1
From: Indianapolis
Default

The first thing you would have to do is bore the manifold, since stock is 52mm. If your sig contains all your mods, I am not sure why you would have to retune.
Reply
Old Sep 7, 2007 | 06:19 AM
  #8  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

Even going to 52, assuming you're an A4 car, you'll need to change the tunning to accommodate the extra airflow in conjunction with the line pressure. Since that's being done, you might as well have the car tuned anyways
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Sep 7, 2007 | 04:05 PM
  #9  
PEZ97T/A's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 57
Likes: 0
From: ATX
Default

Thats true aight cool thanks but it does already have a madZ28 tune and stuff.
Reply
Old Sep 7, 2007 | 08:39 PM
  #10  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

Originally Posted by PEZ97T/A
Thats true aight cool thanks but it does already have a madZ28 tune and stuff.
Doesn't matter. He'll have to re-tune it.
Reply
Old Sep 7, 2007 | 10:21 PM
  #11  
PEZ97T/A's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 57
Likes: 0
From: ATX
Default

O aight coo thanx for the help.
Reply
Old Sep 7, 2007 | 10:39 PM
  #12  
PEZ97T/A's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 57
Likes: 0
From: ATX
Default

Aight Cool thanx.
Reply
Old Sep 7, 2007 | 10:45 PM
  #13  
SS1156's Avatar
Launching!
iTrader: (4)
 
Joined: Apr 2007
Posts: 289
Likes: 0
From: Clearwater, Fl
Default

Stock is 48mm. You will have to open up the intake to accept the 58mm tb.
Reply
Old Sep 7, 2007 | 11:01 PM
  #14  
nighthawk15's Avatar
TECH Resident
 
Joined: Jul 2007
Posts: 749
Likes: 1
From: Spokane, WA
Default

EDIT: sorry, misread the post above me.

A 52mm will bolt right up with no alterations needed because though the stock tb is 48mm, the openings on the manifold are 52mm. For a 58 you wil need to port the intake.

Last edited by nighthawk15; Sep 7, 2007 at 11:10 PM.
Reply
Old Sep 8, 2007 | 10:04 PM
  #15  
PEZ97T/A's Avatar
Thread Starter
Staging Lane
 
Joined: Sep 2007
Posts: 57
Likes: 0
From: ATX
Default

o ok coo so 52 bolt on sweet so what are the better ones out there like i kno holley is good and bbk but which would yall recomend.
Reply




All times are GMT -5. The time now is 12:11 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE