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Product Details
Make your K-series swap easier with the Hasport EFK2 Performance Engine Mount Kit, engineered specifically for installing a Honda K-series engine into the 1988–1991 Honda Civic and CRX (EF chassis). The EFK2 is designed for use with RSX and 2002–2011 Civic Si manual transmissions.
Hasport's EFK system features a dual-height mount design and patented flip mount, allowing you to optimize engine position for hood clearance, ground clearance, and axle alignment. With a K20, the lower setting allows the engine to fit beneath the stock hood, while the higher position can be used when maximum ground clearance is desired with an appropriate SiR-style hood.
Designed using CAD/CAM technology, the EFK2 provides the strength and precise positioning required for everything from street-driven K-swapped EFs to dedicated race builds.
Features
- Designed for K-series engine swaps into 1988–1991 Honda Civic and CRX
- EFK2 configuration works with RSX and 2002–2011 Civic Si manual transmissions
- Compatible with K20 and K24 engine applications
- Dual-height mounting system provides flexibility when positioning the engine
- Hasport patented flip-mount design
- Optimized engine placement for axle alignment, ground clearance, and hood clearance
- K20 can fit under the factory hood when using the lower mount position
- Available in multiple urethane bushing stiffness options
- Suitable for applications ranging from daily-driven street cars to dedicated drag and race builds
- Designed using CAD/CAM technology for accurate fitment and consistent construction
- Engineered to combine strength, performance, and clean styling
- Backed by Hasport's lifetime warranty
Available Bushing Stiffness
- U62A – Street: Best choice for most street-driven vehicles
- U70A – Race: Firmer option for aggressive street and motorsport use
- U88A – Extreme Race: Designed for serious competition applications
- U94A – Most Extreme Race: Maximum urethane stiffness for dedicated race builds
Vehicle Fitment
- 1988–1991 Honda Civic
- 1988–1991 Honda CRX
- Intended for Honda K-Series engine swaps
EFK2 is designed for:
- Acura RSX manual transmissions
- 2002–2011 Honda Civic Si manual transmissions
Specifications
- Manufacturer: Hasport Performance
- Part Number: EFK2
- Product Type: K-Series Engine Swap Mount Kit
- Chassis: 1988–1991 Civic / CRX (EF)
- Engine Family: Honda K-Series
- Transmission: RSX / 2002–2011 Civic Si Manual
- Bushing Options: U62A, U70A, U88A, U94A
- Warranty: Hasport Lifetime Warranty
Installation Note:
- The EFK-series installation requires cutting and welding, so this is not a completely bolt-in conversion. Hasport also notes that K24 applications using a K24 crank pulley may require additional clearance considerations, including a dropped radius rod.
The Hasport EFK2 is an excellent foundation for building a K-swapped EF Civic or CRX, offering flexible engine positioning, proven drivetrain support, and multiple bushing options to tailor the setup for street, track, or drag use.
| Part Number: | EFK2 |
| Brand: | Hasport |
| Position: | Mount Kit |
| Insert Hardness: | 62a |
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 1988 | Honda | CRX | DX |
| 1988 | Honda | CRX | HF |
| 1988 | Honda | CRX | Si |
| 1988 | Honda | Civic | Base |
| 1988 | Honda | Civic | DX |
| 1988 | Honda | Civic | LX |
| 1988 | Honda | Civic | RT 4WD |
| 1988 | Honda | Civic | Wagovan |
| 1989 | Honda | CRX | Base |
| 1989 | Honda | CRX | HF |
| 1989 | Honda | CRX | Si |
| 1989 | Honda | Civic | Base |
| 1989 | Honda | Civic | DX |
| 1989 | Honda | Civic | LX |
| 1989 | Honda | Civic | RT 4WD |
| 1989 | Honda | Civic | Si |
| 1989 | Honda | Civic | Wagovan |
| 1990 | Honda | CRX | Base |
| 1990 | Honda | CRX | HF |
| 1990 | Honda | CRX | Si |
| 1990 | Honda | Civic | Base |
| 1990 | Honda | Civic | DX |
| 1990 | Honda | Civic | EX |
| 1990 | Honda | Civic | LX |
| 1990 | Honda | Civic | RT 4WD |
| 1990 | Honda | Civic | Si |
| 1991 | Honda | CRX | Base |
| 1991 | Honda | CRX | HF |
| 1991 | Honda | CRX | Si |
| 1991 | Honda | Civic | Base |
| 1991 | Honda | Civic | DX |
| 1991 | Honda | Civic | EX |
| 1991 | Honda | Civic | LX |
| 1991 | Honda | Civic | RT 4WD |
| 1991 | Honda | Civic | Si |
Engine Fitment
| Engine |
|---|
| Honda 2.0L/1998CC - 4 Cylinder (K20Z1) |
| Honda 2.4L/2354CC - 4 Cylinder (K24A8) |
| Honda 2.0L/1998CC - 4 Cylinder (K20Z3) |
| Honda 2.4L/2354CC - 4 Cylinder (K24A2) |
| Honda 2.0L/1998CC - 4 Cylinder (K20A2) |
| Honda 2.4L/2354CC - 4 Cylinder (K24A2) |
| Honda 2.4L/2354CC - 4 Cylinder (K24A1) |
| Honda 2.0L/1998CC - 4 Cylinder (K20A3) |
| Honda 2.4L/2354CC - 4 Cylinder (K24A4) |
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