461 heads - 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 09-01-2012, 02:30 PM
Registered User
 
Last photo:
Join Date: Mar 2010
Location: Pennsylvania
Posts: 61
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
461 heads

Im building a factory motor for racing and I was wondering if there was ever a 461 Chevy head that came on a motor with under 10.25:1 compression. Any help would be great. A year would be even greater

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-01-2012, 08:51 PM
Registered User
 
Last photo:
Join Date: Apr 2012
Posts: 130
Wiki Edits: 0

Thanks: 1
Thanked 8 Times in 8 Posts
In 1967 and 1968, the base engine 327, 300 Hp in the Corvettes had 10.0:1 compression (and only in those two years). I think that these are 461 heads, as were used on the prior 300 hp Corvette engines.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-02-2012, 04:40 AM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,654
Wiki Edits: 0

Thanks: 15
Thanked 58 Times in 55 Posts
The 461 heads were casted from 1964 to 1966.
The 461X heads were casted from 1960 to 1963.
Over the years one thing I always noticed about the 461's where they had smaller chambers than the later camel back heads.
I don't think they ever came on a engine with less than 10.5:1 compression.
During those years only 2 small blocks were in production, the 283 and the 327.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-02-2012, 02:14 PM
Registered User
 
Last photo:
Join Date: Mar 2010
Location: Pennsylvania
Posts: 61
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I was afraid to hear that. The rules are so picky. What is the next best head to the 461s that came with a motor less than 10.25:1? Ex..462,186...etc. thank you for your input
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-02-2012, 04:04 PM
Registered User
 
Last photo:
Join Date: Apr 2012
Posts: 130
Wiki Edits: 0

Thanks: 1
Thanked 8 Times in 8 Posts
Word on the Corvette Forum was that the 300 hp, 10.0:1 '67 used the 462 head. The 300 hp '68 with 10.0:1 used a 291 head.
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:
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
461 Heads commando57 Engine 1 12-07-2004 10:27 AM
461 heads brodie Engine 2 01-29-2004 05:14 AM
461 Heads DTL504 Engine 4 11-11-2003 07:05 AM
461 Casting Heads Mustang_Killa66 Engine 15 02-28-2003 07:13 PM
461 heads 85 regal Engine 3 12-16-2002 10:07 PM


All times are GMT -6. The time now is 03:38 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.