Rod Rocket - 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> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-12-2011, 10:16 AM
Registered User
 
Last photo:
Join Date: Jul 2011
Location: australia
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Rod Rocket

Hi There,

can I fit a 3.875 in stroke crankshaft into a standard sbc 400 block?
If so, is there a large amount of clearancing required ?

Is there a problem with camshaft clearance?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-12-2011, 10:30 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Yes, it will fit. I wouldn't go any larger with a Stock 400 Block tho'.
It's only .125" or 1/8" more stroke.
You will have less Cam to Rod clearance, which you will have to check & clearance. A Small Base Circle Cam makes it easier but, isn't required.
Scat has some nice Stroker clearanced 4340 I-Beam Rods that work well.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-12-2011, 10:49 AM
Registered User
 
Last photo:
Join Date: Jul 2011
Location: australia
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Rod Rocket

Thanks for that.

Would you anticipate that I will need to relieve the block at all ?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-12-2011, 10:58 AM
SSedan64's Avatar
Registered User
 
Last photo:
Join Date: Dec 2007
Location: Macon, GA.
Age: 50
Posts: 6,016
Wiki Edits: 0

Thanks: 0
Thanked 46 Times in 46 Posts
Yes, it will probably need slight clearancing in the same spots the Factory clearanced for the 3.75" Crank.
A long Zip Tie works well for checking Cam clearance etc..

This is for a 383 but, you can see where the clearance problems are.
http://www.chevytech.info/2c42o17.html
Reply With Quote Quick reply to this message

Recent Engine 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:
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
350 vs 350 rocket American Muscle Engine 36 07-07-2009 08:18 PM
403 rocket eatonde Engine 8 09-04-2008 09:57 AM
p-17 Rocket says Hi Ya All p-17Rocket Introduce Yourself 1 10-30-2007 03:05 PM
I think it's a 350 rocket bobby hudson Engine 5 10-20-2006 07:57 PM
Rocket Car Moby302 Hotrodders' Lounge 2 12-10-2003 03:38 AM


All times are GMT -6. The time now is 02:29 PM.


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.