Star Torkstar 577 Twin Cam Camshaft — .577 Lift

The best bolt-in performance upgrade for stock and Stage 1 Twin Cam chain-drive engines on the market — reliable midrange power, that signature Harley sound, and no spring upgrades required.

Part Description

The Star Torkstar 577 cam is engineered for riders who want real, reliable performance gains without tearing into their engine. Designed specifically for chain-drive 2007-and-up Twin Cam engines, the Torkstar 577 is a true bolt-in upgrade that works with stock valve springs and delivers a broad, satisfying midrange powerband right where everyday riding happens. With .577 lift, a 32° IVC, and a 224 x 248 duration profile, this cam adds substantial performance to stock and Stage 1 96, 103, and 110 cubic inch Twin Cam engines — all while sounding and feeling exactly like a Harley should doing it.

**Please note that we cannot ship cams to California. California customers please contact Moto Performance Garage of Las Vegas.**

Star Torkstar 577 Twin Cam Camshaft - .577 Lift

Name: Star Torkstar 577 Twin Cam Camshaft - .577 Lift
Brand: Star Racing
SKU: TC577C

SKU: TC577C

$439.95

Quantity

True bolt-in installation — no engine modifications or spring upgrades required

.577 lift — strong lift profile for meaningful airflow and performance gains

2,000 to 5,000 RPM powerband — shines right in the everyday riding range

Sounds like a Harley should — that classic lope and character at idle

Compatible with stock and Stage 1 96, 103, and 110 cubic inch Twin Cam engines
Excellent low-end torque and throttle response

Strong pull from idle all the way through midrange

Classic Harley sound with that signature loping idle (chop)

Best For: Street & Touring performance
Engine Years Valve Springs Lifter Guides

TC Stock + Stage 1 96, 103, 110 cubic inch engines 2007+ Stock Stock

Push Rods and Lifters can be stock.

Exhaust pairing matters: Star Cams will perform with all pipe configurations, but exhaust selection has a meaningful impact on results. Short exhaust systems create sound wave differentials that negatively affect low-RPM tune quality — a condition that cannot be fully corrected through tuning alone. For the smoothest low-end torque curve, a long 2-into-1 exhaust is strongly recommended. Trusted options include D&D, Fuel Moto, Bassani, ThunderHeader, and Krome Werks.

Professional tuning recommended for best results.