opinions on 400 BB mopar building - 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 05-01-2013, 01:55 PM
72 Dodge Charger Sgt/USMC
 
Join Date: Apr 2013
Location: NY hudson valley
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
opinions on 400 BB mopar building

hello everyone,

ive been researching for a while and i cannot make up my mind wether or not or how I should rebuild my 400 bb.

I startred reading many different threads about every one who has one and throws a "440" crank in and or bores to .030+ over stroked block.

I am kinda on the fence about just calling it a day and buying your basic rebuild kit gaskets and rings ect.. becuase i just spoke with the local Machine shop. I told him i was on a budget and what he could offer me to start out with for 2500 buck keep in mind this is not complete build just to get the ball rolling and his response was I can absolutley nothing for you with that amount. needless to say im thing just a rebuild half on my own.

I am not new to motors or building them but i dont have the means to machine anythiny i.e deck or hone...ect..

All I am looking for is something that sounds good and i could pull out on the weekend to the local track to play with no goals really all though any deceant cheap power is great any help is greatly appreciated.

btw this is going in my 72 Dodge Charger SE
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-01-2013, 02:36 PM
Registered User
 
Last photo:
Join Date: Jan 2012
Location: north east Ohio
Posts: 99
Wiki Edits: 0

Thanks: 2
Thanked 2 Times in 2 Posts
400 engine

I would think you could find something running for 1500$ or even less with a lot of searching.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-01-2013, 02:42 PM
72 Dodge Charger Sgt/USMC
 
Join Date: Apr 2013
Location: NY hudson valley
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by metalstorm View Post
I would think you could find something running for 1500$ or even less with a lot of searching.
well i already bought the 400 and it seems harder to come by when i was looking for mopar blocks plus the 400 i have came out of a 72 charger as well
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-01-2013, 04:09 PM
spinn's Avatar
More dogs than bones
 

Last journal entry: This makes a huge difference
Last photo:
Join Date: Oct 2004
Location: midwest
Posts: 2,212
Wiki Edits: 0

Thanks: 0
Thanked 67 Times in 65 Posts
They could not offer you a performance rebuild kit for less than 2500, that is bad.

The B/RB engines have always been expensive to build. The selection of good heads is limited too. There is a place called the 440source.com that has some good mopar deals. Manciniracing too.

If you want fun and cruise with power, the stock rebuild might be our best option.

A real good cruising package would be a magnum 360 with Rpm 4bbl intake , RT roller cam, 750 vac sec holley or 800 avs carb. That would be around $1500-2000 to get and complete.

A heavy 72 charger is a fat machine and needs some grunt to happily motor around.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-01-2013, 07:01 PM
72 Dodge Charger Sgt/USMC
 
Join Date: Apr 2013
Location: NY hudson valley
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by spinn View Post
They could not offer you a performance rebuild kit for less than 2500, that is bad.

The B/RB engines have always been expensive to build. The selection of good heads is limited too. There is a place called the 440source.com that has some good mopar deals. Manciniracing too.

If you want fun and cruise with power, the stock rebuild might be our best option.

A real good cruising package would be a magnum 360 with Rpm 4bbl intake , RT roller cam, 750 vac sec holley or 800 avs carb. That would be around $1500-2000 to get and complete.

A heavy 72 charger is a fat machine and needs some grunt to happily motor around.


Magnum 360 package?
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 05-01-2013, 07:55 PM
vinniekq2's Avatar
Registered User
 
Join Date: Jun 2012
Location: BC,Canada
Age: 56
Posts: 6,733
Wiki Edits: 0

Thanks: 236
Thanked 618 Times in 601 Posts
why not just build the engine factory stock with a small roller hydraulic cam. an aluminum manifold and headers?
contact paintedjester,hes a mopar fan and builds a lot of 400 hp street engines
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 05-01-2013, 08:06 PM
33Willys77's Avatar
Registered User
 
Join Date: Jan 2013
Location: Wisconsin
Posts: 354
Wiki Edits: 0

Thanks: 7
Thanked 52 Times in 50 Posts
It is easy to get horsepower out of a big block Mopar. Do a basic build on the bottom, get your compression around 10:1 and spend some money on heads. Get the heads to flow and you got it. Put a roller cam in - adjustable rockers - get the right stall and gears to make it all match. Now basic build on bottom, you can get by fine with cast pistons, get good rings. To rebuild heads, you can get almost $1000 in them, so consider getting a pair of aluminum for a few $$ more. You could then get by with a little more compression.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 05-01-2013, 08:38 PM
spinn's Avatar
More dogs than bones
 

Last journal entry: This makes a huge difference
Last photo:
Join Date: Oct 2004
Location: midwest
Posts: 2,212
Wiki Edits: 0

Thanks: 0
Thanked 67 Times in 65 Posts
Quote:
Originally Posted by sgt72charger View Post
Magnum 360 package?
Yeah, it sounded like big blocks were out of the spending limit.

I was thinking that a smallblock magnum headed 360 can be had cheap. Then rering, recam . That R/T cam in the 360 was pretty fast in a big heavy pickup. The truck was the Dakota? or Ram? Not good with current models.

440source has a 500" + stroker 400 kits balanced for under 2k.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 05-01-2013, 08:52 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,212
Wiki Edits: 326

Thanks: 595
Thanked 760 Times in 650 Posts
With this heavy car, I'm gonna give you my standard song and dance about starting at the rear with suspension, gears, posi, wheels and tires. It probably has an 8 3/4" pig, so I might be thinkin' 3.73/3.91/4.10 gears.
Mopar Posi Units for 8 3/4, Dana 60,8 1/4, 9 1/4 and others.

I'm assuming this rig is auto, so your next concern after the diff would be a looser converter.

I've known fellows who have satisfied their performance goals just with gears and converter, not messing with the motor at all. Of course, if you want to put some soup in the motor later, the rest of the drivetrain is already set up for it.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 05-02-2013, 07:58 AM
72 Dodge Charger Sgt/USMC
 
Join Date: Apr 2013
Location: NY hudson valley
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Any good sites for these parts any one could recommend
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 05-02-2013, 10:14 AM
spinn's Avatar
More dogs than bones
 

Last journal entry: This makes a huge difference
Last photo:
Join Date: Oct 2004
Location: midwest
Posts: 2,212
Wiki Edits: 0

Thanks: 0
Thanked 67 Times in 65 Posts
This stuff is pretty reasonable.

scroll on down to 400"



Stroker Kits from 440 Source!!

Brewers sells complete centersections for the 8 3/4/
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
Hey there! Building a 327 and would like some opinions... Nitelife76 Hotrodding Basics 14 10-21-2010 05:56 PM
general mopar engine build opinions 72DgChgr Hotrodding Basics 1 11-16-2009 09:00 AM
Raise compression on a Mopar 400 BREWSBROS Engine 0 09-23-2009 01:09 PM
Building a 350 Chev with a Cragar blower, does any one have any info or opinions ?? dufusperth Engine 1 08-24-2008 02:04 AM
400sbc V 400 Mopar Fletchy Introduce Yourself 1 11-22-2005 07:16 AM


All times are GMT -6. The time now is 09:31 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.