COMP Cams TC-3104 VThunder Front & Rear Camshaft Set Twin Cam .590/.590 250/258

The COMP Cams TC-3104 is a front and rear VThunder hydraulic roller camshaft set engineered as a high-performance upgrade for Harley-Davidson Twin Cam engines. With 0.590"/0.590" valve lift and 250°/258° duration (intake/exhaust), this cam set is purpose-built to unlock serious low-end and mid-range power in larger displacement builds.

Key Features:

• Valve Lift: 0.590" intake / 0.590" exhaust
• Duration: 250° intake / 258° exhaust
• Lobe Design: Sophisticated "Endurance Ramp" profile delivers strong power while minimizing stress on tappets and valve train components for extended service life
• Construction: 8620 billet steel for superior strength and durability
• Drive Type: Chain drive
• Cam Type: Hydraulic roller tappet
• Wide power band with excellent RPM pull through the gears, including strong 6th gear performance
• Sold as a complete front and rear set (pair)
• Made in the U.S.A.

These cams are an ideal choice for performance builds in the 103–120 cubic inch range, including 110" and 117" CVO combinations. They perform best alongside upgraded valve springs, modified cylinder heads, and a compression ratio of approximately 10.5:1. Whether you're building a sport touring machine or chasing strong mid-range grunt, the TC-3104 delivers a noticeable performance transformation.

Cross-Reference / Alternate Part Numbers: Drag Specialties 0925-1092 | UPC: 036584322542