3.4 Swaps The 3.4 V6 Toyota engine

3.4L swap headers

Thread Tools
 
Search this Thread
 
Old Apr 14, 2008 | 11:05 PM
  #1  
Five1Nine8Eight's Avatar
Thread Starter
Registered User
 
Joined: Feb 2005
Posts: 117
Likes: 0
3.4L swap headers

Hi guys, I searched but didn't come up with much. What aftermarket headers are you guys using on your 3.4L swaps?
Reply
Old Apr 15, 2008 | 09:42 AM
  #2  
mt_goat's Avatar
Contributing Member
 
Joined: Nov 2002
Posts: 10,666
Likes: 5
From: Oklahoma State
One of the first places I researched before starting my 3.4 swap was the ORS Technical Articles. Click here: http://www.offroadsolutions.com/technicalarticles.htm

Quote from ORS

If performance exhaust is desired, we recommend using the Downey header system with a custom built exhaust system. When using the Downey system, exhaust will need to be routed down both sides of the bell housing to a custom crossover pipe underneath the vehicle. Earlier Toyotas were designed to have the exhaust routed down the driver side of the vehicle. With this header setup care must be taken when routing the exhaust down the passenger side to be clear of fuel lines, brake lines, and the front drive shaft (and don't forget the fuel tank too).
Reply
Old Apr 15, 2008 | 09:51 AM
  #3  
fillsrunner4's Avatar
Registered User
 
Joined: Jun 2004
Posts: 2,906
Likes: 2
From: Woodinville, wa
Downey make the best headers for that motor IMO
Reply
Old Apr 15, 2008 | 12:47 PM
  #4  
Elvota's Avatar
Contributing Member
 
Joined: Jun 2005
Posts: 3,415
Likes: 9
From: Phx, AZ
I used Downey headers for my swap as well.
Reply
Old Apr 22, 2008 | 01:20 PM
  #5  
JGrund85's Avatar
Registered User
 
Joined: Feb 2008
Posts: 248
Likes: 1
From: Greeley, Colorado
^ x2 on the downeys...clearance issues on the passenger side with the fuel line though.
Reply
Old May 13, 2008 | 10:44 PM
  #6  
89934runr's Avatar
Registered User
 
Joined: Apr 2006
Posts: 297
Likes: 0
I know I'm a day late & a dollar short on this, but I used the Downeys, with a bit of massaging. I also made a Y-pipe with ball flanges to mate to it. Here's a few mock-up shots:

PS- I just helped a friend swap in his 3.4 with Edelbrock headers (for a 2K Taco)- we had to make a longer crossover/downpipe, but they fit nicely. I'll try to get some pics up.


Reply
Old May 14, 2008 | 03:04 AM
  #7  
Five1Nine8Eight's Avatar
Thread Starter
Registered User
 
Joined: Feb 2005
Posts: 117
Likes: 0
Forgot about this thread. Thanks for the replies everyone, I'll be ordering the downey headers for the 5VZ, now do they fit in a 2WD frame? I guess I'll find out.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
clok
86-95 Trucks & 4Runners
1
Aug 1, 2015 09:42 PM
1996Taco
95.5-2004 Tacomas & 96-2002 4Runners
3
Jul 20, 2015 12:02 AM
Seattle_Sign_Guy
95.5-2004 Tacomas & 96-2002 4Runners
0
Jul 12, 2015 12:38 PM
Coreyr384
86-95 Trucks & 4Runners
2
Jul 10, 2015 11:13 AM




All times are GMT -8. The time now is 02:26 AM.