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Toyota 3.4L Engine Swap - Replacing the 3.0L

article thumbnail After buying a '95 4runner for $1500 with a bad rod knock, I soon realized that I was going to have a hard time finding a good engine for it. After researching for a few days, I decided to install...
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Home arrow Technical Info arrow 3.4 Swap
Toyota 3.4L Engine Swap - Replacing the 3.0L Print
Monday, 05 June 2006
Article Index
Toyota 3.4L Engine Swap - Replacing the 3.0L
Fitting the Engine
Parts List
Oil Pan and Dipstick Info
Motor Mounts
Oil Pressure Sender
Wiring
Clutch
Exhaust
Fuel System, other lines
Power Steering
Radiator, Fan and Hoses
Throttle Cable
Air Conditioning
Cruise
 

Fuel System and other lines

You need the EVAP VSV (Vacuum Sensing Valve) from the 3.4, and the evaporater canister would be handy as well - although not necessary. You will be able to mount these in the stock location for the 3.0L engine. 

You will need to route fuel lines from the passenger side to the driver side. I chose to make a custom high pressure line that runs from the fuel filter, up and across the firewall, and comes out beside the brake booster. I used standard 5/16" steel hydraulic tubing with the original fittings from the ends. I used a single flare end rather than a double flare like he factory line, and it worked fine.

I used a piece of rubber fuel line for the low pressure return line. I routed this across the firewall to the factory fuel line.



Last Updated ( Thursday, 11 September 2008 )