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

LT1 Block interchange

Thread Tools
 
Search this Thread
 
Old Aug 15, 2006 | 08:59 PM
  #1  
Dr. Teeth's Avatar
Thread Starter
On The Tree
iTrader: (4)
 
Joined: Aug 2006
Posts: 138
Likes: 0
Default LT1 Block interchange

Are all the LT1 blocks that were made identical? So if Iwant to build a replacement engine for my 96 WS6 can I start with ANY LT1 block and build from there?
Reply
Old Aug 15, 2006 | 09:04 PM
  #2  
dhdenney's Avatar
TECH Veteran
iTrader: (53)
 
Joined: Feb 2004
Posts: 4,433
Likes: 0
From: Monticello, Kentucky
Default

All Corvette blocks were 4 bolt main and the F-cars, others were 2 bolt. The 4.3 LT1 (or whatever it was) obviously isn't a good one to start with. But the 350ci blocks are all the same pretty much.
Reply
Old Aug 16, 2006 | 06:23 AM
  #3  
Dr. Teeth's Avatar
Thread Starter
On The Tree
iTrader: (4)
 
Joined: Aug 2006
Posts: 138
Likes: 0
Default

Originally Posted by dhdenney
All Corvette blocks were 4 bolt main and the F-cars, others were 2 bolt. The 4.3 LT1 (or whatever it was) obviously isn't a good one to start with. But the 350ci blocks are all the same pretty much.
So it's pretty safe to assume that I could build another bottom end and then pull my motor and transfer the upper end and so forth without much care for the year/origination of the new block?

Thanks.
Reply
Old Aug 16, 2006 | 08:11 AM
  #4  
dhdenney's Avatar
TECH Veteran
iTrader: (53)
 
Joined: Feb 2004
Posts: 4,433
Likes: 0
From: Monticello, Kentucky
Default

I wouldn't think twice about it.
Reply
Old Aug 16, 2006 | 09:20 AM
  #5  
Landon@Texas Speed's Avatar
Teching In
 
Joined: Aug 2006
Posts: 27
Likes: 0
Default

Originally Posted by dhdenney
All Corvette blocks were 4 bolt main and the F-cars, others were 2 bolt. The 4.3 LT1 (or whatever it was) obviously isn't a good one to start with. But the 350ci blocks are all the same pretty much.
Werd...all LT1 350 blocks were about the same...i got an impala block in mine..
Reply
Old Aug 16, 2006 | 09:22 AM
  #6  
BarneyMobile's Avatar
10 Second Club
iTrader: (4)
 
Joined: Nov 2005
Posts: 789
Likes: 1
From: New Jersey
Default

I have a block out of a 96 vette.
Reply
Old Aug 16, 2006 | 04:21 PM
  #7  
UA-Plumber's Avatar
TECH Apprentice
iTrader: (2)
 
Joined: Jun 2006
Posts: 362
Likes: 0
From: Rockford, Illinois
Default

The impalas came with either the 350ci LT1 or the 265ci LT1
Reply
Old Aug 16, 2006 | 04:23 PM
  #8  
Honda Hunter's Avatar
TECH Addict
iTrader: (8)
 
Joined: Sep 2005
Posts: 2,401
Likes: 0
From: The beautiful Kingdom of Bahrain
Default

Originally Posted by BarneyMobile
I have a block out of a 96 vette.
Same here. If you can have it tested first Id do that but yeah I agree with what everyone else said
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Aug 17, 2006 | 11:40 AM
  #9  
GIZMO's Avatar
TECH Addict
iTrader: (8)
 
Joined: Jan 2004
Posts: 2,780
Likes: 3
From: Shelby, NC
Default

Originally Posted by UA-Plumber
The impalas came with either the 350ci LT1 or the 265ci LT1
The Impala only came with an LT1. The L99 (265ci) was the base motor for the Caprice. The L99 was not available in station wagons.
Reply
Old Aug 17, 2006 | 06:44 PM
  #10  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

As GIZMO was saying the L99 was base in the Caprice sedan only it was not available in anything else. You guys can add 94-96 Roadmasters and Fleetwoods to the list of donors as the only engine offered for them was the LT1.
Reply
Old Aug 17, 2006 | 09:37 PM
  #11  
Dr. Teeth's Avatar
Thread Starter
On The Tree
iTrader: (4)
 
Joined: Aug 2006
Posts: 138
Likes: 0
Default

thanks!
Reply




All times are GMT -5. The time now is 11:07 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE