Big Block 82 Pontiac Gran Prix - 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 11-21-2006, 04:55 PM
william27103's Avatar
Member
 
Last photo:
Join Date: Jun 2004
Location: North Carolina
Age: 27
Posts: 117
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Big Block 82 Pontiac Gran Prix

I want to put a big block in an 82 Pontiac Grand Prix. It has the 4.1 v6 in it, original motor.

I have chevy big blocks readily available, but i was wondering if it would be easier to put in a Pontiac big block, like a 400 or a 455. It would also be good to have the chevy in there because of the transmission choices...

anyone know what this requires or where I can get conversion parts

I picked up the car for $200 and want to have a little fun with it

Thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-21-2006, 05:59 PM
curtis73's Avatar
Hates: Liver. Loves: Diesel
 
Last wiki edit: How to find cheap parts
Last journal entry: Found an LQ9 today
Last photo:
Join Date: Dec 2005
Location: Carlisle, PA
Age: 41
Posts: 5,227
Wiki Edits: 16

Thanks: 12
Thanked 10 Times in 7 Posts
The BBC will be cheaper, but that car should come drilled with all possible motor mount holes and configurations ready for whatever. The pontiac engine technically died in 1981, but the holes should be there for it. Should be as simple as buying the right motor mounts and dropping whatever GM engine in you wish... except Caddy, but MTS and other companies make swap mounts to fit the 500 in it.

BOP trannys are pretty easy to find these days. Getting a little more scarce, but not bad. I have a freshly rebuilt TH400 BOP tranny with exactly 27 miles on it sitting here without a tail housing. I could be convinced to sell it You would need a TC, and a tail housing, but it has a deep cast aluminum pan on it.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-21-2006, 06:04 PM
Registered User
 
Join Date: Aug 2006
Location: NC
Posts: 45
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ive done the bbc swap before. it is pritty basic, Just get the mounts for a monte carlo with a sbc. Then set her in, all the brackets you can get for a 77 chev burb with a 454. If you want to run the AC then you will need to run the stock low profile valve covers. If you have no ac plans then just ditch the ac box and use a non ac box. A th350 is a direct swap for trans mounting.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-30-2009, 01:50 PM
Ifit aint fix...Don't broke it
 

Last journal entry: 52 fleetline firewall
Last photo:
Join Date: Mar 2009
Location: georgia
Posts: 60
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
swap

If you want to run the exhaust inside the frame you will have to bump the stock mounts up between1 1/2 or 2 inches otherwise you will have to flatten the pipes off the the stubby headers. The stock low flow 80s model truck exhaust manifolds will solve this problem but they weigh a ton and restrict flow. The ac box is in the way and you might have to trim and patch it a little for some clearance some are okay some aren't and it also depends on valve covers etc....Good Luck you Effort will be rewarded (Until the first trip to the gas station )
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
Ford Big block 4 spd bellhousing bigblocktorino Transmission - Rearend 3 10-05-2006 04:56 AM
hv big block pump for small block roy383ci Engine 9 05-24-2006 07:52 AM
small block or big block southrncuz1816 Engine 16 03-19-2006 08:40 PM
69 Camaro Big Block Underhood Photos?? EricTopless68 Camaro Engine 4 03-10-2004 07:03 PM
Is the Pontiac 350 considered a big block? PD69 Engine 9 07-23-2003 12:00 PM


All times are GMT -6. The time now is 03:16 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.