Will an oval port intake work with round ( peanut ) port 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 02-13-2008, 04:27 PM
Registered User
 
Join Date: Feb 2008
Location: ma
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Will an oval port intake work with round ( peanut ) port heads?

This is my first post guys. I am building a 1989 454 to drop into my boat. It has the round ( peanut ) port heads, and I'm wondering if an oval port intake would match up and fit without problems? Also, could I use the stock TB intake and bolt up a carb to it instead. I would rather go the new route with a better manifold if possible. I'm an old school guy I'm not a big fan of computers in engine management, just more things to break. All I need is air, fuel and spark to go, thats it. Thanks in advance for the help.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-13-2008, 05:03 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,230
Wiki Edits: 326

Thanks: 602
Thanked 764 Times in 654 Posts
I'm no big block expert by a long shot, having built only one 454 in my life, but I'm pretty sure that any standard deck manifold will bolt to any standard deck block. The only issue I see is with the port size mis-match using the larger port manifold with the smaller port heads. The motor will run of course, but it would seem there will be a lot of turbulence at the manifold/head interface.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-13-2008, 06:13 PM
Double_v23's Avatar
Horsepower Enthusiast
 

Last journal entry: Finished BMOD001FH
Last photo:
Join Date: Jul 2007
Location: Mooresville, NC
Posts: 1,495
Wiki Edits: 0

Thanks: 0
Thanked 4 Times in 4 Posts
I agree, the manifold will bolt up and it will work but flow will be reduced. This may not that bad if you are doing low speed low rpm driving. The answer to all your problems is to purchase the appropriate manifold.

You will need an adapter or a new manifold to run a carb.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-13-2008, 06:48 PM
31 five window
 

Last journal entry: Master cylinder
Last photo:
Join Date: Oct 2007
Location: louisiana
Age: 56
Posts: 1,571
Wiki Edits: 0

Thanks: 0
Thanked 13 Times in 13 Posts
I agree with the replies but If possible especially in a boat that will see a lot of high RPM I would get better heads to go with the better intake. Those peanut heads will kill the power on that engine.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-13-2008, 11:33 PM
Registered User
 
Join Date: Feb 2008
Location: ma
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Its not a go fast boat

I'm looking for the low end torque which the engine has already stock, not looking for high rpm. I'm installing something close to a 2:1 ratio tranny also. I don't think there are too many companys making the peanut port intake manifolds.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-14-2008, 01:33 AM
Member
 
Join Date: Nov 2001
Posts: 437
Wiki Edits: 0

Thanks: 0
Thanked 11 Times in 10 Posts
Peanut port heads.

I saw a peanut port intake manifold for carb use on Ebay. I cant remember who makes it. I think it may have been for boat application. You might check with Edelbrock, weiand or other manufacture websites, I imagine someone makes a manifold for the peanut port heads.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-14-2008, 11:43 AM
Registered User
 
Last photo:
Join Date: May 2006
Location: Abbotsford, B.C, Canada
Age: 49
Posts: 180
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
oval to peanut

yes it will mate up but that torque you had, your going to lose some of it as the peanut ports are going to slow down the air pattern
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
BBC large port oval head question - 781 JamesRS Engine 4 12-21-2009 06:29 AM
porting bbc 360 heads to fit big oval manifold malibu396 Engine 3 11-27-2007 11:23 AM
cheap 454 with peanut heads Haulin327 Engine 6 05-27-2006 11:06 PM
looking for some head(s) now i'm gonna explode! bullheimer General Rodding Tech 25 04-12-2004 01:16 PM
Cam Help black66 Engine 3 05-12-2003 06:15 PM


All times are GMT -6. The time now is 12:51 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.