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

Big Ends?

Thread Tools
 
Search this Thread
 
Old Apr 22, 2010 | 07:13 AM
  #1  
a97transam's Avatar
Thread Starter
Staging Lane
 
Joined: May 2005
Posts: 71
Likes: 0
From: UK
Default Big Ends?

My friend has a 94 Formula with approx 100K miles.
He had a couple of head studs snap off on the drivers side and because of this the stock exhuast manifold was blowing quite bad, but otherwise it ran great with almost 40psi oil pressure at idle and 60psi at WOT.
He had the head removed at a local garage who drilled and tapped the heads for new studs and then it was all put back together - no other changes or performance mods added.
After picking up the car he thought something wasn't quite right. Performance was down.
Whilst out driving the oil pressure suddenly dropped down to about 20 (never hit zero) and the engine began to clank.
He immediately stopped and had car trailored to his house and then later it was transported to the same garage that did the head work. They have diagnosed a big end failure.
My question is this: Could the garage have done something that caused the failure or was it just bad timing that it happended the day after he collected it from them?
If you think they messed something up - then what?

Any advice or long-range diagnosis you can offer would be good.

Thanks
Reply
Old Apr 22, 2010 | 07:17 AM
  #2  
thehammer69's Avatar
Launching!
iTrader: (2)
 
Joined: Dec 2006
Posts: 285
Likes: 0
From: Goose Creek, SC
Default

They probably dumped a bunch of dirt in the intake valley and did a half assed job cleaning it out. Or not, could just be bad luck.
Reply
Old Apr 22, 2010 | 09:29 AM
  #3  
fleetmgr's Avatar
TECH Addict
 
Joined: Jun 2009
Posts: 2,012
Likes: 0
From: Tulsa, OK
Default

There's a good possibility that they did something wrong, the problem is proving it. You won't get any such proof by taking it back to the same shop that did the original work.
Reply
Old Apr 22, 2010 | 09:48 AM
  #4  
a97transam's Avatar
Thread Starter
Staging Lane
 
Joined: May 2005
Posts: 71
Likes: 0
From: UK
Default

You won't get any such proof by taking it back to the same shop that did the original work.
Agreed - but unfortunately I had no influence there....
Reply




All times are GMT -5. The time now is 02:47 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