Hasport 88-91 Civic CRX Dual-Height K-Swap Motor Mount Kit
Part Number: EFK2

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Product Details

Part Number:	EFK2
Brand:	Hasport
Position:	Mount Kit
Insert Hardness:	62a

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.

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