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

Does AC Delco Make Decent Opti's?

Thread Tools
 
Search this Thread
 
Old Apr 3, 2009 | 10:34 AM
  #1  
NitrousJunkie's Avatar
Thread Starter
On The Tree
iTrader: (5)
 
Joined: Nov 2004
Posts: 108
Likes: 0
From: Waterloo Iowa
Default Does AC Delco Make Decent Opti's?

I'm in need of an Opti, found a guy with a low mileage AC Delco unit but I'm weary because its not a GM/Delphi.

Is there anything to be worried about with these? Anyone have any experience using AC Delco Units?

Thanks.
Reply
Old Apr 3, 2009 | 10:37 AM
  #2  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

AC Delco are great...then again what opti is great
Reply
Old Apr 3, 2009 | 10:38 AM
  #3  
GreatV8's Avatar
Teching In
 
Joined: Feb 2009
Posts: 37
Likes: 0
From: Stevenson,WA
Default

+1 that's what I'm running
Reply
Old Apr 3, 2009 | 10:45 AM
  #4  
dkishton1486's Avatar
On The Tree
 
Joined: Mar 2006
Posts: 121
Likes: 0
From: Boardman, Ohio
Default

Be leary....Just because its low milage doesnt mean he didnt get coolant in it taking off the waterpump
Reply
Old Apr 3, 2009 | 10:56 AM
  #5  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

^^True true..how much is he asking for it? Did he tell you about how many miles were on it?
Reply
Old Apr 3, 2009 | 11:01 AM
  #6  
transamws6_97's Avatar
TECH Fanatic
iTrader: (5)
 
Joined: Jun 2005
Posts: 1,300
Likes: 1
From: Cincinnati, OH
Default

If I'm not mistaken I believe delco optis are made my delphi
Reply
Old Apr 3, 2009 | 11:05 AM
  #7  
ss.slp.ls1's Avatar
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default

Originally Posted by transamws6_97
If I'm not mistaken I believe delco optis are made my delphi
Both actually. At first the OEM parts were made by AC Delco, later they were made by Delphi. Both are quality oem parts. You can't go wrong with either.
OP - I would suggest removing the cap of the opti and thread locking the rotor screws.
Reply
Old Apr 3, 2009 | 11:33 AM
  #8  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Default

Originally Posted by NitrousJunkie
I'm in need of an Opti, found a guy with a low mileage AC Delco unit but I'm weary because its not a GM/Delphi.

Is there anything to be worried about with these? Anyone have any experience using AC Delco Units?

Thanks.
It's the same thing.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Pouria Savadkouei
story-1

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

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Apr 3, 2009 | 01:53 PM
  #9  
schwoch1's Avatar
On The Tree
15 Year Member
 
Joined: Apr 2006
Posts: 135
Likes: 2
From: Burlington, Wisconsin
Default

Like the other person said, A/C Delco is Delphi and vice a versa. I have found that no matter who makes an opti, it can fail. I had to walk twice last year, once with a Cardone reman and once with a A/C Delco unit. Goes to show that anyone can have bad parts!!! I decided to get rid of it all 'cause I got tired of walking!!!

Mike
Reply
Old Apr 3, 2009 | 01:57 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 transamws6_97
If I'm not mistaken I believe delco optis are made my delphi
The Optispark is Delphi, but the OPTI(cal sensor) is Mitsubishi (Sorry, had to heh)
Reply
Old Apr 3, 2009 | 02:27 PM
  #11  
sweetbmxrider's Avatar
TECH Addict
iTrader: (13)
 
Joined: Sep 2008
Posts: 2,768
Likes: 3
From: jersey shore
Default

its oem quality. stick with it!
Reply
Old Apr 3, 2009 | 02:33 PM
  #12  
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 sweetbmxrider
its oem quality. stick with it!
Yep! Just make sure it's not an eBay "Remanufactured" unit unless it's by Thepartsladi (or something to that extent).

Also avoid Accel opti stuff like the plague, in case yo are planning to buy just the Optispark w/o cap and rotor (not sure if they even sell it that way).
Reply




All times are GMT -5. The time now is 10:58 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