Vortec heads on older block? - 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 03-13-2012, 07:27 AM
Supporter of the 4.3 liter V6
 
Last photo:
Join Date: Dec 2010
Location: The Villages, Florida
Age: 21
Posts: 132
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Vortec heads on older block?

Hey guys i know i ask alot of 4.3 liter related questions but there is not much info out there on these little motors... Anyway i was at the junk yard the other day and saw a tbi 4.3 with vortec heads (the good ones after 96). My question is can i take newer heads like that and put on my block (1986 4.3l with stock heads and carb intake)? I know the intake and lifters and cam will have to be addressed but im just after head info right now

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 03-13-2012, 07:41 AM
BOBCRMAN@aol.com's Avatar
Member
 
Last photo:
Join Date: May 2002
Location: Holly, michigan
Posts: 8,115
Wiki Edits: 0

Thanks: 25
Thanked 266 Times in 249 Posts
Probably not. There were at least 5 different series of 4.3 Vortec heads made. Intake and valve train parts were not interchangable as a rule. Year, VIN code and application were factors.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-13-2012, 11:55 AM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,655
Wiki Edits: 0

Thanks: 15
Thanked 59 Times in 56 Posts
The heads will bolt on, however, it's not a freebie. To run the Vortec heads you'll need a set of special screw in studs made by ARP and a eight bolt Vortec intake. The Edelbrock Vortec intake costs over $240 however there is a aftermarket source for intakes that GM made for the 4.3 in boats, these intakes are single plane with a divider plate and are made of cast iron. You can get one off Ebay for $197 with shipping. I wouldn't bother to run a 4.3 if it doesn't have a roller cam.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-13-2012, 12:27 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
DV has the head info covered. You need SA rockers, ~2000-up stockers were roller trunnion, but were also net lash.

Here's a cast iron Vortec spreadbore marine intake, single plane w/the divider:



This is a marine deal, they run at the torque peak for the most part; part throttle, off-idle driveability isn't high on the list of priorities. Personally I would not use this intake on the street.

And there's an intake for the Rochester 2G:


Last edited by cobalt327; 03-13-2012 at 12:33 PM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 03-13-2012, 12:38 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Found a good page on rocker arms on the 4.3L V6. I think by now studs should be available for the 1993 to 1999 V6 engines with screw in rocker studs.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 03-13-2012, 02:19 PM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,655
Wiki Edits: 0

Thanks: 15
Thanked 59 Times in 56 Posts
I'm outta luck then Cobalt, I got that very intake and will be trying it out before long. The reason why I wanted it was it's the only 4.3 Vortec intake I found that has a Quadrajet pattern on it.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 03-14-2012, 06:52 AM
Supporter of the 4.3 liter V6
 
Last photo:
Join Date: Dec 2010
Location: The Villages, Florida
Age: 21
Posts: 132
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
So there are adapters and such that would allow that to work? also a cam, lifters, aftermarket valve springs and intake manifold are in the plans as well.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 03-14-2012, 09:09 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by DoubleVision
I'm outta luck then Cobalt, I got that very intake and will be trying it out before long. The reason why I wanted it was it's the only 4.3 Vortec intake I found that has a Quadrajet pattern on it.
Well, you know how the V6 isn't as affected by an open plenum intake as a V8 when using an open plenum- hell, my little 229 V6 has a stock open plenum 2-bbl. OEM aluminum intake, and it doesn't seem any worse for it, although that's all I've ever had on it so I don't have anything to compare it to. But I mean, there's no flat spots or anything like that. It IS slow, though...
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 03-15-2012, 07:07 AM
Supporter of the 4.3 liter V6
 
Last photo:
Join Date: Dec 2010
Location: The Villages, Florida
Age: 21
Posts: 132
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Well Cobalt327 we should meet up one day and we'll try your v6 against mine. Mines aweful slow as well, although all my friends have v8s so there's no comparison there. I'd like to whoop my buddy with a 4.9 ford inline but somehow i just can't keep up Oh well I have the loudest v6 in the land but thats about it haha
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 03-15-2012, 10:23 AM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
Quote:
Originally Posted by ChadGresham
Well Cobalt327 we should meet up one day and we'll try your v6 against mine. Mines aweful slow as well, although all my friends have v8s so there's no comparison there. I'd like to whoop my buddy with a 4.9 ford inline but somehow i just can't keep up Oh well I have the loudest v6 in the land but thats about it haha
I managed to beat a 2.8L '82 Camaro w/my 229 V6 Chevy- but that ain't saying much...
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 03-16-2012, 06:44 AM
Supporter of the 4.3 liter V6
 
Last photo:
Join Date: Dec 2010
Location: The Villages, Florida
Age: 21
Posts: 132
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
My buddy had one of those 90 model camaros with the little 3.4liter or somethin and he thought he was hot ***** because it was faster than the other cars leaving the traffic lights. Fortunately for his dumb ***, they weren't trying to race him! haha
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 03-18-2012, 07:56 PM
Banned User
 
Last photo:
Join Date: May 2011
Location: N.E.
Posts: 385
Wiki Edits: 0

Thanks: 9
Thanked 6 Times in 6 Posts
Sort of unrelated, but related:

http://www.youtube.com/watch?v=ddA1MgLex2Q

i'd like to talk about this jewel in another thread.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 03-19-2012, 06:37 AM
Supporter of the 4.3 liter V6
 
Last photo:
Join Date: Dec 2010
Location: The Villages, Florida
Age: 21
Posts: 132
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Yes it is possible to make big power out of a 6 cylinder, the problem i always run into is finding the money for the upgrades.. haha
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
Can the newer Vortec pistons and rods be used in an older block? Twistedwrench Engine 4 02-13-2008 07:38 PM
LT1 heads on older block almega Engine 1 01-23-2005 09:08 AM
older heads on newer 350 block? dpjmw Engine 1 07-30-2004 05:49 AM
LT1 Heads on Older Block? Hammar Engine 9 04-24-2003 10:23 AM
Are sbc throttle body heads & older block compatable? Rodrunner Engine 2 03-11-2003 03:11 PM


All times are GMT -6. The time now is 03:13 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.