LSA Swapped 350z – 700+ Horsepower?!

This particular 350z came to us through a craigslist transaction involving a 4-wheeler. It started it’s life with us in rough shape, blown lower control arm bushings, the most bondo I think anyone of us have ever seen piled onto a single quarter panel (this is seriously ⅜ of an inch thick, maybe more), ruined interior, and burning enough oil to turn the rear bumper a nice shade of sut. We started by completely stripping the car’s interior and exterior panels, then removed the poor VQ35 from it’s home.

At this point we split up to conquer several tasks simultaneously. Finding wheels and a body kit to suit the car and our goals, sourcing a new powerplant and transmission, and sourcing all of the parts to make the swap happen.

We ended up with Work Meister M1 in 19×11.5 -36 and -44 F and R respectively, rocket bunny v1 wide-body kit and an LSA from a 2014 ZL1 Camaro.

For the interior we sourced the majority of the parts from an 06 350z, and made custom brackets to place a set of r35 GTR black edition seats into the vehicle. We also ordered a Sikky LS 350z swap kit to make the build progress at a faster rate. We ended up modifying the front subframe to move the LSA farther back into it’s new home and began the rest of the modifications. As this swap kit is not meant for a tr6060 transmission we custom built a cross member and were able to move the engine back far enough that a shifter relocation was not needed (as the tr6060 has one from the factory.) We also had some difficulties with the intake as it’s offset to the drivers side, making fitment difficult with the core support. We chose to move the radiator under the core support and use tight radius aluminum bends to make the intake work. It has an upward angle to it and we like it, so we decided to not continue fabricating something to make it more “standard LS swap.)

We installed TruHart air suspension front and rear with the programmable adjustable heights and cut the rear quarterpanels to allow for the rocketbunny kit to fit into place. As per the bosses request we made metal rear mini over fenders to fit inside of the kit so that it was water tight up against the bottom inside of the widebody rear over fenders.

With the engine fitted where we wanted it, it was time to start the engine modifications. The LS received a new cam and the valve springs / pushrods to support it. The cam itself is a custom grind by Jeff Lowry at Performance Specialties Inc specifically for the supercharged application.

While the engine was receiving its new cam, our other technician taped off and painted the engine bay a gloss black. We also added gold heat reflective tape to make the black paint really pop and keep the engine compartment heat separate from the passenger cabin. At this point we were ready for the final installation of the engine and to move onto the fuel system.

The original idea was to use the Sikky fuel line solution, but as it uses -6 an line it wouldn’t support our horsepower goals for this car. We ended up creating a return system out of the stock fuel pump housing. -8 an to the adjustable regulator and to the fuel rail, -6 return back from the engine bay to the tank. The pump is an in-tank walboro 450 and should be plenty to get us into the 700rwhp range.

The wiring was an interesting challenge as we decided to convert the LSA over to drive by cable. This meant reverting a lot of the sensors and the computer itself to an older style 99-02 camaro engine computer. With the help of a lingenfelter converter box for the reluctor wheel and a standalone LS1 harness converted to work for the 350z, we were finally on the downswing of the swap and moved onto the cooling aspect of the build

As I previously mentioned the intake prevented us from keeping the radiator in its factory location. We ended up using a radiator kit that allowed us to pick the core size and then weld the fittings on where they made the most sense for the hoses.

1967 LS6 Firebird
LSA Swapped 350z – 700+ Horsepower?!