Nashville Performance has earned a stellar reputation as a premier destination for car enthusiasts seeking high-quality engine swaps and custom builds. Among the most transformative modifications available, swapping a vehicle’s factory powerplant for a Nissan RB series engine stands out as a pathway to exhilarating performance. These swaps not only unlock immense horsepower but also breathe new life into classic platforms. With a dedicated team, state-of-the-art fabrication, and a deep understanding of the RB engine family, Nashville Performance has delivered countless success stories. This article explores some of their most impressive RB swap customer builds, the technical artistry behind them, and the broader impact these projects have on the community.

The RB Engine Family: A Brief Overview

The Nissan RB series engines have achieved legendary status among automotive enthusiasts. Introduced in the late 1980s, these straight-six powerplants were designed to deliver robust torque, high revs, and exceptional durability. The family includes several notable variants: the RB20DET (2.0-liter, turbocharged), RB25DET (2.5-liter, turbocharged), RB26DETT (2.6-liter, twin-turbo), and RB30DET (3.0-liter, turbocharged). Each offers distinct characteristics suited to different applications. The RB26DETT is perhaps the most famous, powering the iconic Nissan Skyline GT-R and producing over 600 horsepower in modified form. The RB30DET, often built from a combination of an RB30 block and RB26 head, provides a larger displacement for exceptional torque. These engines are prized for their robust iron blocks, advanced cylinder head designs, and extensive aftermarket support. Nashville Performance selects the optimal RB variant for each project, ensuring the build achieves the customer’s goals—whether for street driving, track work, or drifting. For more technical specifications, enthusiasts can refer to resources like the Wikipedia entry on the Nissan RB engine.

Customer Build #1: The Classic Skyline GT-R

Among Nashville Performance’s standout achievements is the restoration and upgrade of a classic Nissan Skyline GT-R (R32). The owner, a lifelong fan of the GT-R lineage, wanted to retain the car’s iconic character while dramatically increasing its power output. The team performed a full engine rebuild of the RB26DETT, incorporating forged pistons, stronger connecting rods, and upgraded main bearings to handle elevated boost pressures. They fitted a pair of Garrett GTX3076R turbochargers along with a custom intercooler and a ventilated hood for heat management. A Haltech Elite 2500 ECU was tuned on a dyno to deliver a seamless power curve. The result: over 600 horsepower at the wheels and a torque curve that keeps the driver planted. Beyond raw power, the team upgraded the transmission to a strengthened RB25-based six-speed gearbox and installed a triple-plate clutch to handle the torque. The car now serves as a dual-purpose street and track machine, participating in time-attack events and enthusiast meets. The customer reported that the car feels “alive and responsive” at every throttle input, with the exhaust note—a mix of turbo whistle and straight-six roar—drawing crowds wherever it appears.

Technical Details That Made the Build Shine

  • Engine: Fully built RB26DETT with forged internals, polished ports, and a custom intake plenum
  • Turbochargers: Twin Garrett GTX3076R with external wastegates and a custom intercooler
  • Fuel System: Upgraded injectors (1000cc), dual Walbro 450LPH pumps, and a surge tank
  • Management: Haltech Elite 2500 ECU with flex-fuel capability for E85
  • Output: 610 whp and 560 lb-ft torque on pump gas

This build exemplifies how Nashville Performance combines meticulous engineering with a client’s vision to create a standout vehicle. The Skyline GT-R now competes in local hill climbs and has won several “Best Engine Swap” awards at regional shows.

Customer Build #2: The Drift-Ready Nissan 240SX

Drifting demands a specific blend of power, torque, and chassis balance. For a customer who competed in grassroots drift events, Nashville Performance transformed a tired Nissan 240SX (S14) into a formidable drift weapon. The original KA24DE engine was removed in favor of an RB30DET—a hybrid engine using an RB30 block with an RB26 cylinder head. This combination provides the high-revving character of the RB26 with the displacement needed for abundant low-end torque. The team reinforced the block with ARP main studs and a billet main girdle. A single Precision 6466 turbocharger was mounted in a custom forward-facing manifold to improve spool and reduce lag. The drivetrain received a custom driveshaft, a reinforced differential with a 2-way limited-slip, and a six-speed sequential gearbox from a Nissan 350Z. Suspension upgrades included coilovers, adjustable control arms, and a full roll cage for safety. On the track, the car now delivers consistent, controllable slides through corners with immediate throttle response. The customer noted that the swap “transformed the car from a fun daily driver to a genuine competition-level machine.” The 240SX has since podiumed at multiple Formula Drift Pro-Am events and continues to be a showcase of Nashville Performance’s fabrication talents.

Key Components of the RB30DET Drift Build

  • Block: RB30 from a Nissan R31 or VG30-based sources, machined to accept RB26 head
  • Turbo: Precision 6466 CEA ball-bearing, Tial 44mm wastegate
  • Cooling: CSF triple-pass radiator, oil cooler, and upgraded intercooler
  • Suspension: BC Racing coilovers, front and rear sway bars, solid bushings
  • Output: 580 whp and 530 lb-ft torque on a custom tune

This build demonstrates that RB swaps are not only for GT-Rs; they can revitalize everyday cars like the 240SX into competition-ready platforms. Nashville Performance’s expertise in custom fabrication allowed them to solve the unique packaging challenges of the S14 engine bay, including modifying the firewall for turbo clearance and rewiring the entire harness to work with the standalone ECU.

Customer Build #3: The Street Sleeper Nissan Silvia S13

Not every build is about extreme power; some customers desire a subtle, reliable daily driver with a punch. A Nashville Performance client brought in a clean Nissan Silvia S13 (180SX) with a desire for a reliable RB25DET swap. The goal was 400 horsepower with daily-driver comfort, no radical idle, and minimal modification to the exterior. The team sourced a low-mileage RB25DET from a Japanese R33 Skyline and performed a mild rebuild, replacing timing components, oil pump, and gaskets. They used a Borg Warner EFR 6758 turbocharger—known for its fast spool and high efficiency—along with a front-mount intercooler and a 3-inch stainless exhaust. The car retained its factory air conditioning and power steering. A Link G4+ ECU provided a smooth, drivable tune with flex-fuel capability. The result: 420 horsepower at the wheels with a broad torque plateau. The customer described the car as “a wolf in sheep’s clothing—quiet enough to drive to work but savage when you step on it.” This build shows that RB swaps can be practical and stealthy, appealing to enthusiasts who want performance without shouting about it.

Daily-Drivable RB25DET Specs

  • Engine: RB25DET with standard bore, polished head, upgraded valve springs
  • Turbo: BorgWarner EFR 6758 with T3 flange .80 A/R
  • Cooling: Mishimoto aluminum radiator with electric fans
  • Fuel: 550cc injectors, AEM fuel rail, Walbro 255 LPH pump
  • Output: 420 whp and 400 lb-ft on 93 octane

This street-sleeper approach appeals to a wide audience, proving that Nashville Performance can tailor an RB swap to any lifestyle. The project also involved custom wiring to integrate the Link ECU with the S13 chassis, preserving all factory gauges and amenities. The customer now logs over 20,000 miles per year with zero issues, a testament to the team’s thorough build process.

Customer Build #4: The Wagono? RB26DETT-Powered Nissan Stagea

Nissan’s Stagea—a station wagon that shared the R33 Skyline chassis—is a beloved platform for those who need practicality without sacrificing performance. Nashville Performance took on a unique project: a Stagea 260RS model originally equipped with an RB25DET, but the owner wanted the ultimate sleeper—a twin-turbo RB26DETT swap. The team performed a full drivetrain conversion, including the engine, transmission, and all-wheel-drive system sourced from a wrecked R33 GT-R. The RB26DETT received a mild build with metal head gaskets, forged pistons, and upgraded fuel components. Twin Garrett GT2860RS turbochargers provided excellent response, and a custom exhaust system with active valves kept the sound civilized during daily driving. The car retained its towing hitch and interior comfort features, making it a dual-purpose family hauler and weekend track toy. The customer reported that the Stagea now pulls harder than many sports cars he has owned, while still fitting his family of four. This build illustrates the versatility of RB swaps and Nashville Performance’s ability to tackle any platform.

Stagea RB26DETT Build Highlights

  • Engine: Built RB26DETT with forged rods and pistons, balanced rotating assembly
  • Turbos: Twin Garrett GT2860RS, HKS cast iron manifolds
  • Drivetrain: R33 GT-R AWD system with upgraded half shafts
  • Suspension: Coilovers with adjustable damping, stiffer sway bars
  • Output: 500 whp and 470 lb-ft on 93 octane

The Stagea project took six months to complete, given the complexity of integrating the GT-R AWD system and wiring. Nashville Performance fabricated custom mounts and modified the transmission tunnel to fit the six-speed gearbox. The result is a one-of-a-kind wagon that turns heads at car meets and outruns many purpose-built track cars. The owner often uses it to tow a small race trailer, demonstrating the engine’s reliability under load.

Technical Challenges and Solutions in RB Swaps

Performing an RB swap is not a simple bolt-in affair. Each vehicle presents unique hurdles, from engine mount fabrication to wiring integration. Nashville Performance has developed a systematic approach to overcome these challenges. Common issues include clearance for turbocharger placement, oil pan clearance with the front crossmember, and adapting the coolant and intake systems. For example, the S14 240SX required a custom radiator mounting and short ram intake to fit the RB30DET. The Stagea needed a custom downpipe to clear the steering rack. Wiring is especially critical; Nashville Performance often uses standalone ECUs from Haltech or Link to simplify integration and gain full tuning control. They also replace the entire engine harness with a custom loom, ensuring reliability and ease of troubleshooting. Another challenge is balancing the engine and transmission weight: RB engines are heavy, so they often upgrade engine mounts and install polyurethane bushings to reduce movement under load. For each build, the team performs a mock-up with brackets and test fits before final fabrication. This attention to detail prevents costly mistakes and ensures the swap is both safe and durable.

The Role of Nashville Performance’s Expertise

What sets Nashville Performance apart is not just technical skill but a customer-centric philosophy. They work closely with each client to define goals, budget, and timelines. The shop’s in-house dyno allows them to fine-tune every build for maximum power and drivability. They also offer ongoing support, helping customers with maintenance, upgrades, and troubleshooting. Many customers return for future projects, building long-term relationships. The team’s knowledge extends beyond engine swaps; they are adept at custom fabrication, welding, and tuning, making them a one-stop shop for complete builds. Their reputation has attracted clients from across the Southeast, who ship their cars for major overhauls. Testimonials frequently mention the professionalism and transparency of the staff. As one customer put it: “They explained every step, and the final product exceeded my expectations. I wouldn’t trust anyone else with my car.” This commitment to quality has made Nashville Performance a trusted name in the performance community.

Aftermarket Support and Parts Selection

Success in an RB swap also depends on selecting the right aftermarket parts. Nashville Performance sources from reputable manufacturers to ensure reliability and performance. Common partners include Garrett Motion for turbochargers, AEM Electronics for engine management, Exedy for clutches, and Radiator Express for custom cooling solutions. They also work with specialized RB parts suppliers like Mazworx and Spoolinup Performance for critical components like oil pans and timing kits. For tuning, they rely on software from Haltech and HP Tuners. The shop educates customers on part choices, helping them avoid cheap knock-offs that can cause engine failure. They recommend upgrading the fuel system, intercooler, and exhaust before increasing boost, ensuring the engine can safely handle higher outputs. For those looking to replicate similar builds, resources like Garrett’s Boost Advisor help in selecting the right turbo, while forums such as Nicoclub provide community knowledge. Quality parts and proper installation are the keys to a long-lasting RB swap.

Community and Events: Where These Builds Shine

Nashville Performance’s RB swap customer builds do not gather dust in garages; they are actively used in the automotive community. Many owners participate in local car meets, such as the annual Nashville Cars and Coffee, where these swaps draw large crowds and inspire other enthusiasts. Some builds, like the drift 240SX and the Skyline GT-R, compete in organized events. The drift car has been a regular at Formula Drift Pro-Am rounds in the Southeast, while the GT-R has tackled hill climbs at places like Tail of the Dragon and Poconos. The Stagea wagon frequently appears at shows like Import Alliance and Hot Import Nights, earning awards for best engine swap and best wagon. These public appearances not only showcase Nashville Performance’s work but also foster a community of like-minded car lovers. The shop often hosts open houses and dyno days, inviting customers and curious enthusiasts to see builds in progress. The success stories shared on social media encourage others to pursue their own RB swaps, creating a thriving ecosystem of custom car culture. For event schedules, enthusiasts can follow Nashville Cars and Coffee for local meetups.

Conclusion: The Lasting Impact of RB Swaps

Nashville Performance’s top RB swap customer builds demonstrate the transformative power of engine upgrades. From the iconic Skyline GT-R to the practical Stagea wagon, each project elevates the vehicle’s capabilities while preserving its personality. The team’s engineering expertise, attention to detail, and commitment to customer satisfaction have produced reliable, high-performance machines that owners cherish. For enthusiasts considering an RB swap, Nashville Performance provides a clear path: start with a vision, consult the experts, select quality parts, and commit to proper tuning. The results speak for themselves in every success story. Whether restoring a classic, building a drift car, or creating a street sleeper, the RB engine family remains a versatile and rewarding choice. Nashville Performance continues to push boundaries, helping customers realize their dream cars and contributing to a vibrant community that celebrates automotive passion. As more enthusiasts discover the thrill of an RB swap, the stories from this shop will inspire countless future builds.