Our Engines
Performance Engines

RPE Suzuki Hayabusa GSX-R 1340cc
RPE have advocated lightweight, high-output Suzuki Hayabusa powertrains in racing applications for two decades. Radical’s unique technical relationship with Suzuki means that the latest 1340cc Generation 4 engines are the most durable combined engine and gearbox packages on the market.
Engine Spec
Max Power | 198.8 hp |
---|---|
Max Torque | 120.1 ft/lbs |
Weight | 83 kg |

RPE Suzuki Hayabusa GSX-R 1500cc
As proven by Radical’s own best-selling SR3 race car, our stroked 1500 variant of the Hayabusa proves you don’t need capacity to deliver outstanding performance. Loved by circuit and off-road racers alike, this RPE-developed variant benefits from bespoke components including a forged Arrow crank and unique Cosworth pistons.
Engine Spec
Max Power | 226.2 hp |
---|---|
Max Torque | 134.3 ft/lbs |
Weight | 83 kg |

RPE Macroblock 2.7L V8
Designed and manufactured in-house by RPE since 2005, the acclaimed Macroblock V8 is the lightest and most compact production racing V8 on the market. Naturally aspirated and high-revving, this 72-degree flat-plane V8 delivers not only exception performance but also an exhilarating soundtrack, whilst remaining cost-effective, simple and reliable to operate.
Engine Spec
Max Power | 431.3 hp |
---|---|
Max Torque | 236.5 ft/lbs |
Weight | 105kg |

RPE Ford EcoBoost 2.0L High Output
Radical were the first third-party manufacturer to adopt Radical’s award-winning EcoBoost engine technology in 2011, and since then we’ve developed the 2.0 to astounding heights. Using our experience garnered in single-seater and GT competition, this powerplant is ideal for a range of FIA-mandated championships globally.
Engine Spec
Max Power | 360 hp |
---|---|
Max Torque | 335 ft/lbs |
Weight | 115kg |

RPE Ford EcoBoost 2.3L I4
The EcoBoost 2.3 is the latest addition to the RPE race engine stable. Our team can offer a range of tuning options suitable for standalone racing applications, or as performance improvements to trackday applications with the engine in its native Ford installation, including the Mustang and Focus ST.
Engine Spec
Max Power | 362.1 hp |
---|---|
Max Torque | 361.1 ft/lbs |
Weight | 115kg |

RPE Ford EcoBoost 2.3L High Output I4
With more comprehensive internal and reciprocating component changes, up to 550hp is now possible from this advanced powerplant. Even at modest boost pressures, the 2.3 High Output variant boasts the highest specific output of any RPE unit, at over 236hp per litre.
Engine Spec
Max Power | 542.9 hp |
---|---|
Max Torque | 432.9 ft/lbs |
Weight | 115kg |

RPE Ford EcoBoost 3.5L V6
As used in the race-winning Radical RXC GT3, the EcoBoost V6 is RPE’s largest and most powerful standard engine line, with power outputs exceeding 654hp in unrestricted form. It’s a durable, torquey and tractable engine, ideal for endurance racing competition and other long-distance, high-performance disciplines.
Engine Spec
Max Power | 654.3 hp |
---|---|
Max Torque | 530.9 ft/lbs |
Weight | 187kg |
We also have experience with the following engine ranges:
- Suzuki GSX-R 1000cc
- Kawasaki ZZR 1100cc & 1200cc
- Yamaha FJ 1100cc & 1200cc
- Ford EcoBoost I4 Turbocharged 1600cc
- Ford Cyclone 3700cc N/A V6
- Honda K20, B16 & B18
- GM Ecotec / XE
- AR A-Series
- Ford ‘Kent’ Crossflow
and many more