Willis Fabrication

10/24/2026

Here’s a big build we completed entirely in-house! 🔥

We started with a low-mileage 6.0L LQ4 and 4L80E combo sourced from a box truck. We went through the engine, performed our usual reliability upgrades, and added a cam kit.

The transmission received a Jake’s Stage 2 kit paired with a Circle D 3400-stall billet converter.

Turbo setup 🌀

The turbo kit features a custom hard-piped intercooler that doubles as the center hood latch support while still clearing the factory safety latch. We modified the cast hot side manifold and fabricated a custom crossover pipe. To help manage backpressure with this turbo setup, we cut the 60mm piston-style wastegate directly into the hot side of the turbo.

The turbo is a VS Racing 78/75 billet-wheel unit, chosen for its midrange torque. And man, does it deliver! Full boost comes in at 3,200 RPM, making this a seriously fun street setup.

The exhaust consists of a full 3.5-inch turbo-back system that was hand built with a Vibrant muffler and a recirculated wastegate.

Drivetrain & brakes 🔧

We ditched the factory 10-bolt rear end in favor of a Ford 9-inch with custom driveshaft. We also overhauled the braking system and converted the rear brakes to discs.

The details that set this build apart 👌

There are countless small details throughout this truck that really bring the build together:

Hard lines for all engine-bay vacuum and boost reference lines.
An integrated boost gauge in the factory gauge cluster, matching the OEM colors and font.
A Holley screen tucked into the ashtray that folds away when not in use.
Coil packs relocated underneath the truck, allowing the wiring to run beneath the turbo manifold and away from excessive heat.
The factory speedometer and odometer retained using a Dakota Digital box that drives the OEM speedometer cable.
Factory-style small-block senders adapted to the LS so the original oil pressure and coolant temperature gauges function properly.

A/C! ❄️

We adapted the LS A/C compressor to the factory A/C system using custom lines and a newer-style receiver-drier, all while retaining the factory wiring and switches.

This build is a great example of what happens when you combine thoughtful engineering, custom fabrication, and attention to the little details. So much more went into this truck than meets the eye!

📞 Interested in a custom build? Give us a call at 207-576-3853

10/02/2026

Hard to believe it’s been 5 years already! 🎉

Thank you to our amazing customers, family, and friends for supporting us throughout the years. We are incredibly thankful for every referral, every customer, and every job that has helped us get to where we are today.

Kyle and I are so excited to see what the next 5 years bring as we continue to grow and build our business.

Here’s to the next 5!

-Mary

08/21/2026

This perfect black on black 1962 Impala ss convertible was brought to us for a pile of drivability upgrades. We installed a full dual Holley sniper EFI kit. Including a Holley gas tank with built in EFI fuel pump. We also installed a full classic auto air ac and heat system. We added a power brake booster to help the peddle feel of the 4 piston bear brakes that were previously added. Lastly we installed a retro sound classic looking radio with modern features like Bluetooth. The entire package really makes the car much more modern and comfortable to drive.

207-576-3853

04/22/2026

01/07/2026

This 94’ Ford Ranger is a missile. With a built 302 Ford and a Paxton supercharger going to a manual gear box it is a powerhouse. We installed the supercharger “kit” that unfortunately was missing a lot of parts. We made a custom belt system for the blower by turning spacers and machining brackets to make the tensioner and idler system work. We then installed a Holley sniper EFI system with a Holley Hyperspark distributor and CDI box. The Hyperspark system allows the Holley EFI to control engine timing electronically. The Holley pulls timing as the blower builds boost. We built out the fuel system with a rising rate regulator and removed a pile of wiring from the engine bay. The exhaust rear section was redone and we did bed side exit exhaust on both sides.

207-576-3853

12/31/2025

This LS swapped 1971 firebird came to us to have the rear exhaust section built. We removed all the clamps on the front section kit and welded all the joints to prevent leaks. There were a pair of 3” cutouts added to the x pipe followed by the fabrication of the rear section of the exhaust. We really liked the customers choices of tips and mufflers and so did the judges at Yessahbub! as it took best exhaust!

207-576-3853

08/18/2025

This obs F350 came to us for a header install followed by a full dual 3” exhaust and a retro sound radio install. We went with a pair of 3” Borla Pro XS mufflers for a deep sound but not too loud driving around town.

207-576-3853

06/05/2025

This 98’ M3 was brought up to us for a post purchase inspection and some preventive maintenance! We did all the common E36 chassis bracing plates for both subframes and rear trailing arms. The steering was all updated to a E46 zhp rack and E46 tie rods. We converted the rubber steering coupler to a universal as well to help with steering feel. The car then received a full custom 4 wheel alignment for track use. We installed a custom set of gauges inside the cluster and in the center console. The gauges in the cluster uses the factory data wiring for the ecu to display anything the computer will output while looking completely oem. Lastly, we resealed the Vanos Vvt and replaced the leaking power steering lines.

207-576-3853

04/18/2025

This 1986 Toyota blizzard was one of the hardest projects we have done but the results were so worth the effort. Every system in the whole truck has been modified or outright replaced with custom parts and built completely in house.

The blizzard was brought to us after having a major mechanical failure in the drivetrain. The customer sourced a 1997 Toyota 1kz-t and transmission from a European Land Cruiser that is much more modern and makes a lot more power. We built one off engine and trans mounts were made to bolt in the new drivetrain as well as having to cut out a large chunk of the transmission tunnel. The next step was to manual convert the transfer case since the vacuum actuator for 2x4 was going to be inside the frame on the blizzard. The transfer case was split and converted and we did a custom twin stick setup for t-case control. The and trans tunnel were redone to accommodate the much larger drivetrain.

The next hurdle was converting the blizzard chassis from cable clutch to hydraulic for the more modern transmission. We modified the stock clutch peddle and built a custom linkage using a 4runner master cylinder and a custom adapter plate for the firewall. We built a custom downpipe for the turbo and a stainless intake tube that uses the oem blizzard air box.

The engine wiring was a big part of this swap. There are no avail diagrams for either the chassis or the new engine. We built a full custom engine harness that maintained the factory gauges and added dual electric fans. The oem blizzard ac compressor was then reused with the help of a custom machined billet adapter plate. This allowed us to bolt it to the new engine while maintaining the whole stock ac system.

Lastly, we removed the stock triple gauges from the dash board and modified the trim to accept a set of auto-meter gauges to keep an eye on the vitals. We also installed a digital egt display into an unused vent on the drivers side. The result is a truck that looks nearly original that has been resto modded to a much more useable level. The power output increase is substantial and the drive ability is so much better!

207-576-3853

04/06/2025

Here’s a custom window install we did for a new local food trailer. After the customer supplied the desired window and picked the location we started cutting. We modified the interior frame work and built a support structure to hold up the window frame. We then laid out the location for the folding table and built a support frame for it to be installed. The customer can now finish the build out inside!

If you’re looking to get into the schedule give us a call! 207-576-3853