Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

400 crank shaved ?!

Thread Tools
 
Search this Thread
 
Old Jul 14, 2010 | 10:15 PM
  #1  
F-Body Lover's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Dec 2005
Posts: 576
Likes: 0
Default 400 crank shaved ?!

I opened the oil pan off my 383ci and I noticed the crank is shaved at first I thought its normal but I dont think its normal I think the previous owner shaved it or something I toke pictures of the shaved area





is that normal? the engine was running before I take it off no issues with the short block only had problems with valves they were not fully closed and caused backfires thru carb but it was revving smooth should I complete the engine and run it or take off the crank and put 350 crank and thats it ?
Reply
Old Jul 15, 2010 | 06:27 AM
  #2  
cambirdracing's Avatar
TECH Resident
iTrader: (4)
 
Joined: Jun 2009
Posts: 865
Likes: 2
From: League City Texas
Default

Sometimes an engine builder will do that to shave weight if the rod/piston are lighter. Sometimes for clearance.
Reply
Old Jul 15, 2010 | 06:29 AM
  #3  
F-Body Lover's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Dec 2005
Posts: 576
Likes: 0
Default

will that effect something? because I dont want to build that engine and be sorry later
Reply
Old Jul 15, 2010 | 06:05 PM
  #4  
F-Body Lover's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Dec 2005
Posts: 576
Likes: 0
Default

anyone please ??
Reply
Old Jul 15, 2010 | 08:43 PM
  #5  
kenSS's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2005
Posts: 604
Likes: 0
From: Gap, PA
Default

NO you r fine. I use to cut .500" off the counterwieghts of cranks. Lighter and less windage and in some cases u have to to balance it properly. My 383 in my 86 camaro in my sig has .500" cut off the wieghts. My counterwieghts are all perfectly round and weighs about 5lbs less.
Reply
Old Jul 15, 2010 | 08:46 PM
  #6  
F-Body Lover's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Dec 2005
Posts: 576
Likes: 0
Default

whats your E.T in the 86 ? I will complete the engine as soon as I get the oil pan back from the shop
Reply
Old Jul 15, 2010 | 08:49 PM
  #7  
kenSS's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2005
Posts: 604
Likes: 0
From: Gap, PA
Default

My best so far was a 10.70 with a 1.60 60ft. My converter is too tight. Good luck.
Reply
Old Jul 16, 2010 | 07:11 PM
  #8  
F-Body Lover's Avatar
Thread Starter
TECH Enthusiast
 
Joined: Dec 2005
Posts: 576
Likes: 0
Default

I will build another 350 with .060 pistons and use the E-tec 200 heads and will keep the 383 in store or put the L98 aluminum heads on the 383 and use it in another car what do you think guys ?
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




All times are GMT -5. The time now is 03:09 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