SBF 351W Xtreme Hyd. Cam XE274H

The COMP Cams SBF 351W Xtreme Hydraulic Cam XE274H (part number 35-246-3) is a performance-focused camshaft engineered specifically for small block Ford engines seeking substantial power gains across the mid to high RPM range. This hydraulic flat-tappet cam delivers 0.519-inch intake and 0.523-inch exhaust lift with 274-degree intake and 286-degree exhaust duration, ground to a 110-degree lobe separation angle. The 1800–6000 RPM operating band positions this camshaft as a natural fit for street performance builds, weekend warriors, and engine builders targeting aggressive power delivery without sacrificing low-end drivability.

The hydraulic flat-tappet design offers distinct advantages for builders working within traditional small block Ford architecture. Lift values of this magnitude—particularly the asymmetrical 0.004-inch difference between intake and exhaust—optimize valve timing efficiency and breathing characteristics. The 110-degree lobe separation angle balances overlap and separation, enabling controlled combustion and manageable vacuum levels. Operating parameters spanning from 1800 to 6000 RPM provide realistic usability for street and dual-purpose applications, avoiding the extreme idle quality and marginal low-speed characteristics of radical valve events. This cam pairs seamlessly with stock or mildly upgraded valve train components, eliminating the need for expensive rocker arm upgrades or specialized pushrod geometries.

This camshaft targets small block Ford owners committed to noticeable performance improvement. Whether upgrading a classic muscle car, a vintage truck platform, or a modern hot rod project, the XE274H delivers measurable horsepower and torque gains through optimized valve events. Engine builders familiar with COMP Cams' Xtreme Energy series recognize the engineering focus on real-world power delivery and reliability. Installation requires standard small block Ford cylinder head compatibility and basic camshaft installation procedures; verify existing valve train clearance and lifter condition before assembly.