Andrews EV27 Series Camshaft For Harley EVO 1984-2000
Unleash the Evolution: Andrews EV27 Camshaft for Harley EVO Big Twin (1984–2000)
The Andrews EV27 Camshaft is arguably the most popular and celebrated performance upgrade for the Harley-Davidson Evolution (EVO) Big Twin engine platform, covering models from 1984 through 2000. Designed specifically to address the performance limitations of the stock Harley cam, the EV27 transforms the riding experience by delivering a massive, usable increase in torque and horsepower, making it the foundational choice for nearly every EVO owner seeking better street performance.
Engineering for Mid-Range Muscle
The stock cam in the 80 cubic inch (1340cc) EVO engine is notoriously mild, offering flat, uninspired power delivery. The Andrews EV27 Cam was engineered to correct this by shifting the powerband to where street riders need it most: the low-to-mid RPM range (approximately 2,000 to 5,000 RPM).
Ideal for Street Use
The profile of the EV27 is known for building cylinder pressure quickly. This results in an immediate, noticeable boost in low-end and mid-range torque, which is what you feel when rolling on the throttle to pass traffic or accelerating off a stoplight. This emphasis on usable street power is why the Andrews EV27 has earned its reputation as the Best Bolt-In EVO Cam for daily riding and touring.
The True Bolt-In Advantage
One of the biggest selling points of the Andrews EV27 Series Camshaft is its simplicity of installation for the Harley EVO Big Twin 1984-2000.
No Head Clearance Issues: The lift profile of the EV27 is compatible with the stock valves and rocker arms, meaning there is no need to machine or modify the stock cylinder heads for valve clearance. This keeps the installation cost and complexity low.
Retains Stock Valve Springs: In most healthy EVO motors, the EV27’s lift is low enough that it does not require high-performance valve springs (though checking spring height and pressure is always recommended during any cam swap).
This true bolt-in EVO cam capability makes it a favorite project for competent home mechanics and an affordable choice for shop installation, reducing the overall cost of the Evolution Engine Upgrade.
Required Supporting Modifications
To fully realize the power gains promised by the Andrews EV27, supporting modifications are essential:
High-Flow Air Cleaner: The cam’s increased breathing capacity requires a performance air intake to feed the engine more air.
Performance Exhaust: A less restrictive performance exhaust system (such as a 2-into-1 pipe) is necessary to efficiently expel the increased volume of exhaust gas.
Carburetor/Fuel Management Tuning: For carbureted models (most pre-2000), a jetting change is mandatory. The engine needs a richer air/fuel mixture to run cool and maximize power with the new cam timing.
Paired with these essential components, the Andrews EV27 Camshaft is the most effective and reliable way to maximize the performance of your Harley EVO Big Twin, providing reliable, exciting power throughout the riding RPM range.
| Product Style | AmericanV-twin Item # | Catalog Number | Store Sku | MFR. Product # | Availability |
|---|---|---|---|---|---|
| Andrews EV27 Series Camshaft For Harley EVO 1984-2000 | 10213889 | 431-550 | 208239 | 291127 | In Stock: Ships within 24 hours |
This Product Fits
Harley Davidson
Disc Glide FXRDG 1984
Dyna Convertible FXDS 1994, 1995, 1996, 1997, 1998
Dyna Glide Custom FXDC 1992
Dyna Glide Daytona FXDB-D 1992
Dyna Glide Sturgis FXDB-S 1991
Dyna Low Rider FXDL/I 1993-1998
Dyna Super Glide FXD/I 1995, 1996, 1997, 1998
Dyna Wide Glide FXDWG/I 1993-1998
Electra Glide Classic FLHTC/I 1985-1998
Electra Glide Sport FLHS 1987-1993
Electra Glide Standard FLHT/I 1985-1998
Electra Glide Ultra Classic FLHTCU/I 1989-1998
Fat Bob FXEF 1985
FLH 1985
FXR2 CVO/SE 1999
FXR3 CVO/SE 1999
FXR4 CVO/SE 2000
Low Glide/Low Rider FXRS 1985-1993
Low Rider Chrome FXRC 1985, 1986, 1987, 1988
Low Rider Custom FXLR 1987-1994
Low Rider Sport FXRS-SP 1987-1993
Road Glide FLTR/I 1998
Road King Classic FLHRC/I 1998
Road King FLHR/I 1994, 1995, 1996, 1997, 1998
Softail Bad Boy Springer FXSTSB 1995, 1996, 1997
Softail Custom FXSTC/I 1986-1999
Softail Deuce FXSTD/I 1999
Softail Fat Boy FLSTF/I 1990-1999
Softail Heritage Classic FLSTC/I 1987-1999
Softail Heritage FLST/I 1986, 1987, 1988, 1989, 1990
Softail Heritage Springer FLSTS/I 1997, 1998, 1999
Softail Night Train FXSTB/I 1999
Softail Nostalgia FLSTN/I 1993
Softail Special FLSTN/I 1994, 1995, 1996
Softail Springer FXSTS/I 1988-1999
Softail Standard FXST/I 1984-1999
Sport Glide FXRT 1985-1992
Sport Glide Grand Touring FXRD 1986
Super Glide FXE 1985
Super Glide FXR 1986-1994
Tour Glide Classic FLTC/I 1985-1991
Tour Glide FLT 1985, 1986
Tour Glide Ultra Classic FLTCU/I 1989-1996
Wide Glide FXWG 1985, 1986
