3.4 Swaps The 3.4 V6 Toyota engine

Build your own 3.4 crossover pipe

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Old Jan 29, 2018 | 04:42 PM
  #121  
17dodgebros's Avatar
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Thanks for reposting pics
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Old Dec 14, 2021 | 12:54 AM
  #122  
ForLegs's Avatar
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This page has helped a lot. One question. Should my crossover be near or touching the heads? Fabbbed mine and on the right side it seems to be directly against the back of the engine
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Old Apr 7, 2023 | 11:51 AM
  #123  
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Did you need to use parts from the 3.0 crossover to modify the 3.4 crossover?
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Old Apr 23, 2023 | 11:59 AM
  #124  
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Great info. Will be trying to do my own. This will be a great reference.
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Old Jan 8, 2024 | 03:35 PM
  #125  
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From: Hawaii
I made a video following your instructions!

Hey this thread was awesome, it saved me so much money, and I wanted to add more content to it.

I filmed my process modifying the crossover pipe, and I noticed there isn't much videos on youtube showcasing the actual DIY process.

Here's my video

This is my first time doing anything like this (welding, posting to forums, doing an engine swap, etc..) so I appreciate any tips abt the swap, welding, anything.

I enjoy watching and reading everything about this 3.4 swap before I actually do it, so I figured maybe other people would appreciate a video.

Also will the VHT ceramic coating will protect the heads enough from the heat? or if I should buy a heat blanket like I added in my video? I feel like everyone has different opinions when it comes to this so I'm not sure what is best.

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Old Apr 27, 2026 | 06:09 AM
  #126  
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I am putting a 3.4 and the manual trans from a ‘98 tacoma into my ‘87 4runner and have started modding the crossover pipe, (i have the complete drivetrain assembled on the floor in my shop). It looks like the flange on the crossover is going to be extremely close to the clutch slave cylinder, and probably the frame rail, anyone ran into issues with this? Wondering if i need to get a 3.0 bellhousing to move the slave to the other side?
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Old May 4, 2026 | 07:46 PM
  #127  
rayl82's Avatar
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From: Medford Wisconson
Originally Posted by Neal3000
I am putting a 3.4 and the manual trans from a ‘98 tacoma into my ‘87 4runner and have started modding the crossover pipe, (i have the complete drivetrain assembled on the floor in my shop). It looks like the flange on the crossover is going to be extremely close to the clutch slave cylinder, and probably the frame rail, anyone ran into issues with this? Wondering if i need to get a 3.0 bellhousing to move the slave to the other side?
it wasn’t an issue for the 89 that jason4x4 built me. That truck has been in a few compilations crossed rivers that were deep as my seats and to Moab a handful of times with no issues. But if it’s close maybe space it out a bit more.. good luck!
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