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

Need some advice please

Thread Tools
 
Search this Thread
 
Old Aug 21, 2015 | 06:52 PM
  #1  
Stephen Manchester's Avatar
Thread Starter
Staging Lane
10 Year Member
Liked
 
Joined: Nov 2014
Posts: 50
Likes: 1
Default Need some advice please

Well guys, i think i may have found my problem. A little history first. My 95 TA blew the factory LT1 up this last winter. After looking around i found a good deal on a low mile, 375 HP LT1/LT4 out of a 93 Corvette. i paid to have the motors swapped out due to not having a garage. Long story short, after a long time of my mechanic being ill and no work getting done on my car i went a picked it up yo finish myself. i got everything hooked and bolted back together and ready to test fire. after cranking all i would get was maybe a hit and even a pop back through the intake. i inspected all wires, plugs and firing order. i also tested the fuel pressure and checked all vacuum lines. after determining it was a problem in the ignition i removed the opti. wow, this is what i found. the opti looked as if it had been broken in several pieces before and someone had made a lame attempt at gluing it back together. after getting it apart this is what i found....give me your input as well as what my best option for replacement would be.
Attached Thumbnails Need some advice please-10346273_1490284644620339_1433732150096746287_n.jpg   Need some advice please-11866495_1490284634620340_1329218654302479463_n.jpg  
Reply
Old Aug 21, 2015 | 07:18 PM
  #2  
myltwon's Avatar
TECH Addict
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,965
Likes: 7
From: Palm Harbor, FL
Default

AC Delco opti, Delphi, or verified (locktited rotor screws, etc.) MSD
Reply
Old Aug 21, 2015 | 07:22 PM
  #3  
madmike9396's Avatar
TECH Junkie
15 Year Member
Liked
Loved
Community Favorite
iTrader: (29)
 
Joined: Jan 2009
Posts: 3,392
Likes: 220
From: North Carolina
Default

2nd ac delco
Reply
Old Aug 21, 2015 | 07:54 PM
  #4  
seymourbuttz's Avatar
Teching In
 
Joined: Apr 2015
Posts: 13
Likes: 0
Default

Thoroughly inspect rest of motor. Looks like that sucker may have been in water.
Reply
Old Aug 21, 2015 | 08:46 PM
  #5  
BTC's Avatar
BTC
TECH Fanatic
15 Year Member
Liked
 
Joined: Nov 2007
Posts: 1,745
Likes: 18
From: Lansing, MI via Bowling Green, KY, Dalton GA, Nashville, TN & Atlanta, GA
Default

It's not uncommon for the water pump to leak, or seep, onto the opti. My factory original opti looked a lot like that, and to be honest it probably looked a lot worse, when I removed it after 100+k miles. In my opinion, what you are seeing is very common. If you get a new opti, get a Delphi, which may be new, or an AC Delco, which will more than likely be a reman at this point.

Being broken is up like that is probably not common, but the rust is very common.
Reply




All times are GMT -5. The time now is 12:45 PM.

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