weight differance between SBC/BBC - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-21-2012, 09:26 PM
Registered User
 
Join Date: Feb 2012
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
weight differance between SBC/BBC

I am swapping my small block for a big block and was curious what the weight differance was between the two motors so I can decide if I need to make any suspension modifications.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-22-2012, 01:43 AM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,248
Wiki Edits: 0

Thanks: 0
Thanked 74 Times in 68 Posts
With everything stock and no alum. intakes....about 125-150 lbs.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-22-2012, 06:55 AM
Registered User
 
Join Date: Nov 2011
Location: Virginia
Posts: 705
Wiki Edits: 0

Thanks: 0
Thanked 75 Times in 75 Posts
Nope, more like 300 lbs. A "dressed" small block weighs in the 600 lb. "neighborhood". A BB with iron heads and intake is well over 800, probably near 900. IMO, the single biggest drawback of BBC, the weight.

What type of vehicle?

Jim
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-22-2012, 07:03 AM
GT23T's Avatar
Registered User
 
Last photo:
Join Date: Jun 2010
Location: Texas
Posts: 53
Wiki Edits: 0

Thanks: 1
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by 66carson
I am swapping my small block for a big block and was curious what the weight differance was between the two motors so I can decide if I need to make any suspension modifications.

http://www.team.net/sol/tech/engine.html
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-22-2012, 07:07 AM
Registered User
 
Join Date: Feb 2012
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
type of vehicle

The motor is a 68' L88 and the vehicle is a 77' Chevy shortbox with 1/2 ton suspension.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-22-2012, 02:54 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,248
Wiki Edits: 0

Thanks: 0
Thanked 74 Times in 68 Posts
No Mr. P-body, you're wrong.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-22-2012, 03:45 PM
T-bucket23's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 57
Posts: 5,154
Wiki Edits: 26

Thanks: 7
Thanked 109 Times in 94 Posts
All things being equal it is about 100-125 LBS
__________________
Artificial Intelligence is no match for Natural Stupidity



Chet
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-22-2012, 05:16 PM
1971BB427's Avatar
Registered User
 

Last journal entry: Latest changes
Last photo:
Join Date: Dec 2010
Location: Portland
Posts: 1,575
Wiki Edits: 0

Thanks: 13
Thanked 248 Times in 215 Posts
Most SBC powered cars will handle the extra weight of a BBC without any suspension changes. If your prings are pretty old and tired then you'll want new springs, but I wouldn't change to BBC springs.
I swapped my '71 Camaro to SBC springs ack in 1975 for drag racing. I just rebuilt my suspension top to bottom, and replaced the front coils with SBC with A/C springs. Slightly heavier, but still sit perfect with my 427 and iron heads.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 02-22-2012, 05:31 PM
starnest's Avatar
elkyholic
 

Last journal entry: Center Link Installed
Last photo:
Join Date: Apr 2007
Location: Virginia Beach
Age: 60
Posts: 327
Wiki Edits: 0

Thanks: 4
Thanked 5 Times in 4 Posts
Quote:
Originally Posted by 66carson
The motor is a 68' L88 and the vehicle is a 77' Chevy shortbox with 1/2 ton suspension.
L88 Really?

Got a bona fide?
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 02-22-2012, 07:02 PM
stich626's Avatar
gearheadslife
 

Last journal entry: The TwoTonShu #10
Last photo:
Join Date: Aug 2011
Posts: 372
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
my 71 el camino was 130 lb heavier with the bbc..
than the 400 smallblock..
per the new england dragway scales.. add alum heads and intake and the difference is moot
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 02-22-2012, 08:38 PM
1971BB427's Avatar
Registered User
 

Last journal entry: Latest changes
Last photo:
Join Date: Dec 2010
Location: Portland
Posts: 1,575
Wiki Edits: 0

Thanks: 13
Thanked 248 Times in 215 Posts
Quote:
Originally Posted by starnest
L88 Really?

Got a bona fide?
Doesn't everybody have an L88?
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 02-23-2012, 04:52 PM
starnest's Avatar
elkyholic
 

Last journal entry: Center Link Installed
Last photo:
Join Date: Apr 2007
Location: Virginia Beach
Age: 60
Posts: 327
Wiki Edits: 0

Thanks: 4
Thanked 5 Times in 4 Posts
Excluding Corvettes at Carlisle, I've only seen one.

I regret not buying it, but it doesn't matter because back then I would have killed it, or myself.

I'd have to see a picture showing the ME or MG code, the 3946052 casting code, and a note with "Hotrodders" recently dated before I would believe.

Nothing personal, just that the mind can play tricks on us.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 02-23-2012, 06:10 PM
1971BB427's Avatar
Registered User
 

Last journal entry: Latest changes
Last photo:
Join Date: Dec 2010
Location: Portland
Posts: 1,575
Wiki Edits: 0

Thanks: 13
Thanked 248 Times in 215 Posts
I know what you mean. Every time someone sees my Camaro is a 427 they ask if it's an L88. Mine is not, but it is a dealer installed Corvette crate motor that was put in the car when it was new.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 02-24-2012, 03:06 PM
Jason7504's Avatar
Registered User
 
Last photo:
Join Date: Mar 2010
Location: Vancouver, WA
Posts: 215
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
how much weight is saved from alum heads, intake and water pump?
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 02-24-2012, 07:34 PM
327NUT's Avatar
Registered User
 
Last photo:
Join Date: Dec 2004
Location: So. Utah
Age: 67
Posts: 3,248
Wiki Edits: 0

Thanks: 0
Thanked 74 Times in 68 Posts
I would think that you would save around 50# on alum. heads on a sbc and about 75# on a bbc. The intake is around 20# ??? and the wtr pump 10# ??? just guessing...
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
differance between 2-k primers&epoxys triple 555 nickel Body - Exterior 1 01-15-2012 06:56 PM
size differance GM 350 and LS1 iceman36 Engine 1 03-13-2009 03:22 PM
Some one please Explain the differance? 67 Deuce 4 Me Transmission - Rearend 6 03-28-2005 07:14 PM
Differance Between Relays PU70 Electrical 3 02-26-2005 08:44 AM
Differance between 305's? Mike_82 Engine 2 10-20-2003 10:53 PM


All times are GMT -6. The time now is 03:29 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.