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

Crankcase pressure

Thread Tools
 
Search this Thread
 
Old Nov 4, 2011 | 05:34 PM
  #1  
shix's Avatar
Thread Starter
Launching!
 
Joined: Aug 2010
Posts: 234
Likes: 0
From: Cincinnati, Ohio
Default Crankcase pressure

I just finished my v6 to v8 swap and drove my car for a short time. After about 30 minutes of normal driving i got into it and it runs like a champ. On my way back home it started huffing white smoke and i got very worried. When i got home i opened the hood and realized that the smoke was coming off my headers. My valve cover gasket blew out part of the way and the pcv tube on the passenger side was out of the valve cover as well. Any advice on how to help evac this pressure would be awesome.
Reply
Old Nov 4, 2011 | 06:13 PM
  #2  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

is the engine completely stock/rebuilt/performance built?
pcv valve funtional?
Reply
Old Nov 4, 2011 | 06:17 PM
  #3  
lt1slowz28's Avatar
TECH Resident
 
Joined: Apr 2010
Posts: 787
Likes: 0
From: T E X A S
Default

that's a lot of pressure...on the pass side valve cover try seeing if you have slight suction, or pressure coming out.


you sure the motor is good? that much blow by can't really be fixed by PCV.
Reply
Old Nov 5, 2011 | 01:09 PM
  #4  
shix's Avatar
Thread Starter
Launching!
 
Joined: Aug 2010
Posts: 234
Likes: 0
From: Cincinnati, Ohio
Default

the motor was fine when it was in my z. All i did to it was replace timing chain, water pump and put headers and exhaust on it. Then had it tuned. It runs strong and everything i will check everything today when i get a chance. I really hope i don't have to tear it apart. I am a poor college kid
Reply
Old Nov 5, 2011 | 05:18 PM
  #5  
stevo9389's Avatar
TECH Enthusiast
 
Joined: Mar 2009
Posts: 680
Likes: 8
From: Clearwater
Default

that tube should be sucking in and not blowing out.
+1 on checking the PCV

when mine was stuck shut my tube kept comming loose and leaking all the time.
Reply




All times are GMT -5. The time now is 01:42 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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