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

casting #s

Thread Tools
 
Search this Thread
 
Old May 1, 2009 | 11:22 PM
  #1  
DisturbedTA's Avatar
Thread Starter
TECH Enthusiast
iTrader: (3)
 
Joined: Apr 2009
Posts: 572
Likes: 0
From: morristown,tn
Default casting #s

ok ipulled the heads from the motor for my ta and the casting is 10128374 i was wondering if these are good porting heads and what year they r off of the car was a 94 ,never kno tho right thanks
Reply
Old May 1, 2009 | 11:58 PM
  #2  
za355tx's Avatar
TECH Resident
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (109)
 
Joined: Dec 2007
Posts: 994
Likes: 2
From: Dfw
Default

Yes 374's are good for porting. The 643's are good too. The ones least suitable for porting are the 561's.
Reply
Old May 2, 2009 | 12:36 AM
  #3  
James Montigny's Avatar
11 Second Club
iTrader: (13)
 
Joined: May 2006
Posts: 2,843
Likes: 0
Default

Originally Posted by za355tx
Yes 374's are good for porting. The 643's are good too. The ones least suitable for porting are the 561's.
Reply
Old May 2, 2009 | 04:44 AM
  #4  
robsquikz28's Avatar
TECH Veteran
iTrader: (246)
 
Joined: Mar 2008
Posts: 4,984
Likes: 1
From: Chicago/Crown point
Default

yessur
Reply
Old May 2, 2009 | 05:57 AM
  #5  
DisturbedTA's Avatar
Thread Starter
TECH Enthusiast
iTrader: (3)
 
Joined: Apr 2009
Posts: 572
Likes: 0
From: morristown,tn
Default

sweet!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Reply
Old May 3, 2009 | 05:00 PM
  #6  
monster81's Avatar
TECH Regular
 
Joined: Oct 2008
Posts: 430
Likes: 0
From: Bahrain
Default

i recently gasket matched a set of aluminum heads off a '97 camaro casting # 12551561,,didnt want to port the whole thing cuz im already goin to get AFRs in the next few months,,,,,,,anyway,what makes these bad heads for porting,,i never noticed that, whats the diffrence, any flow rate diffrence between the diffrent casting numbers
Attached Thumbnails casting #s-dsc00041.jpg   casting #s-dsc00042.jpg  
Reply
Old May 3, 2009 | 05:30 PM
  #7  
GIZMO's Avatar
TECH Addict
iTrader: (8)
 
Joined: Jan 2004
Posts: 2,780
Likes: 3
From: Shelby, NC
Default

Originally Posted by monster81
any flow rate diffrence between the diffrent casting numbers
Yes. As cast the 561's flow quite a bit less than the other castings.
Reply




All times are GMT -5. The time now is 04:59 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE