Stage 4 F-35 LS3 N/A Camshaft

The Texas Speed "F-35" Stage 4 camshaft is a performance upgrade engineered for naturally aspirated LS3 engines utilizing L92/LS3 rectangle port cylinder heads. With a 235/248 duration, .649/.615 lift, and a 111 LSA (109.5 ICL), this camshaft is designed to deliver significant power gains, providing adequate piston-to-valve clearance on stock short-blocks. It is intended for customers seeking the most powerful camshaft option that still maintains reasonable clearance. This "F-35" camshaft shows gains over the stock LS3 camshaft starting at 3,100 RPM, with a strong pull from 4,500 RPM to its 6,600 RPM peak horsepower. Dyno testing indicates an estimated increase of 93 horsepower and 27 ft-lbs of torque. For vehicles equipped with automatic transmissions, a minimum stall speed of 3,600 RPM is recommended for streetability, while a 4,000+ RPM stall speed is beneficial for track applications. The optimal operating range for this camshaft is between 2000 and 7000 RPM. Installation of this camshaft requires specific supporting modifications and components. It necessitates the use of TSP/PAC .660 Dual Valve Springs and ideally an upgraded rear gear ratio of 3.42 or numerically higher. Furthermore, this camshaft is exclusively offered in a 3-bolt design. Owners of vehicles with a single-bolt factory camshaft will need to acquire a three-bolt conversion kit, which includes a 4x upper timing gear for proper camshaft position signal and an ARP camshaft bolt kit. The option for a conversion kit with a complete, upgraded timing set is also available. While the "F-35" camshaft can be made to work as a daily driver with proper tuning, it is generally not recommended. Its aggressive powerband and requirements position it as more suitable for weekend street/strip use. For those seeking more information or assistance with camshaft selection, Texas Speed & Performance offers direct consultation via phone.