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Product Details
| Part Number: | HAS-EF |
| Brand: | Hasport |
| Transmission: | Manual |
Upgrade your EF chassis with the Hasport EFSTK / EFD2 Performance Engine Mount Kit, designed for 1988–1991 Honda Civic and CRX models with a manual transmission. Hasport offers this mount system in two configurations, allowing you to retain an original 1988–1991 D-series/ZC engine or install a later 1992–2000 D-series engine into the lightweight EF chassis.
The EFSTK configuration is designed for original 1988–1991 Civic and CRX D-series engines and is also compatible with 1988–1991 JDM SOHC and DOHC ZC engines. The EFD2 configuration allows the EF chassis to accept 1992–1995 Civic D-series engines using the 2-bolt block bracket as well as 1996–2000 D-series engines.
Hasport's performance mounts provide increased control over engine and transmission movement compared with worn factory rubber mounts. The system is designed for proper engine positioning and axle alignment while offering multiple urethane stiffness options for everything from a daily-driven street car to a dedicated competition build.
Features
- Performance D-Series engine mount kit for 1988–1991 Honda Civic and CRX
- Designed for manual-transmission EF chassis
- Available in EFSTK and EFD2 engine configurations
- EFSTK fits 1988–1991 Civic/CRX D-series engines
- EFSTK also supports 1988–1991 JDM SOHC and DOHC ZC engines
- EFD2 supports 1992–1995 Civic D-series engines with the 2-bolt block bracket
- EFD2 also supports 1996–2000 Civic D-series engines
- Replaces the factory left, right, and rear engine mounts in EFSTK applications
- Designed for ideal engine placement and axle alignment
- Helps reduce excessive engine and transmission movement
- Provides a firmer, more direct drivetrain feel
- Excellent replacement for worn or deteriorated factory mounts
- Designed using CAD/CAM engineering
- Available with multiple urethane bushing stiffness options
- Suitable for daily-driven, performance street, autocross, road-racing, and drag-racing applications
- Backed by Hasport's lifetime warranty
- Not compatible with the AWD Civic Wagon
- EFSTK – Engine Compatibility
Choose EFSTK when using:
- 1988–1991 Honda Civic D-Series engines
- 1988–1991 Honda CRX D-Series engines
- 1988–1991 JDM SOHC ZC engines
- 1988–1991 JDM DOHC ZC engines
Choose EFD2 when installing:
- 1992–1995 Honda Civic D-Series engines with the 2-bolt block bracket
- 1996–2000 Honda Civic D-Series engines
Available Bushing Stiffness
- U62A – Street: Best suited for daily-driven and performance street applications
- U70A – Race: Firmer option for aggressive street driving and motorsport use
- U88A – Extreme Race: High-stiffness option intended primarily for competition
- U94A – Most Extreme Race: Maximum urethane stiffness for dedicated race applications
Higher-durometer bushings provide greater control over drivetrain movement but will also transmit additional noise, vibration, and harshness (NVH) into the chassis.
Vehicle Fitment
- 1988-1991 Honda Civic / CRX
- Manual transmission applications
- Does not fit AWD Civic Wagon
Product Details
- Manufacturer: Hasport Performance
- Part Numbers: EFSTK / EFD2
- Product Type: Performance D-Series Engine Mount Kit
- Chassis: 1988–1991 Honda Civic / CRX (EF)
- Engine Family: Honda D-Series / Select ZC Applications
- Transmission: Manual
- Bushing Options: U62A, U70A, U88A, U94A
- Manufacturer Listed Weight: 10 lbs
Hydraulic Transmission Note
- If you're using a 1992–2000 Civic D-series manual transmission with a hydraulic clutch, Hasport specifies adding the EFDHC and EFDHCL components. Hasport's hydraulic conversion system allows the later hydraulic-clutch transmission to be used in the EF chassis while operating the clutch through the EF's cable system.
Choosing Between EFSTK and EFD2
- Choose EFSTK if your 1988–1991 Civic or CRX is retaining an original-generation D-series engine or compatible JDM ZC.
- Choose EFD2 if you're installing a later 1992–2000 D-series engine into your 1988–1991 Civic or CRX.
Whether you're restoring an EF with its original drivetrain or upgrading to a later D-series engine, the Hasport EFSTK / EFD2 Performance Engine Mount Kit provides a purpose-built mounting solution with improved drivetrain control, proper engine positioning, and bushing options to match everything from a daily driver to a dedicated race car.
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 | Notes |
|---|---|---|---|---|
| 1988 | Honda | CRX | DX | Manual |
| 1988 | Honda | CRX | HF | Manual |
| 1988 | Honda | CRX | Si | Manual |
| 1988 | Honda | Civic | DX | Manual |
| 1988 | Honda | Civic | LX | Manual |
| 1989 | Honda | CRX | Base | Manual |
| 1989 | Honda | CRX | HF | Manual |
| 1989 | Honda | CRX | Si | Manual |
| 1989 | Honda | Civic | Base | Manual |
| 1989 | Honda | Civic | DX | Manual |
| 1989 | Honda | Civic | LX | Manual |
| 1989 | Honda | Civic | Si | Manual |
| 1990 | Honda | CRX | Base | Manual |
| 1990 | Honda | CRX | HF | Manual |
| 1990 | Honda | CRX | Si | Manual |
| 1990 | Honda | Civic | Base | Manual |
| 1990 | Honda | Civic | DX | Manual |
| 1990 | Honda | Civic | EX | Manual |
| 1990 | Honda | Civic | LX | Manual |
| 1990 | Honda | Civic | Si | Manual |
| 1991 | Honda | CRX | Base | Manual |
| 1991 | Honda | CRX | HF | Manual |
| 1991 | Honda | CRX | Si | Manual |
| 1991 | Honda | Civic | Base | Manual |
| 1991 | Honda | Civic | DX | Manual |
| 1991 | Honda | Civic | EX | Manual |
| 1991 | Honda | Civic | LX | Manual |
| 1991 | Honda | Civic | Si | Manual |
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