SBC Xtreme Hydraulic Cam XE249H

The COMP Cams SBC Xtreme Hydraulic Cam XE249H is a purpose-built hydraulic flat tappet camshaft engineered for small block Chevy engines seeking aggressive mid-range power and street-strip versatility. This cam delivers 0.434-inch intake lift and 0.444-inch exhaust lift across a 249/260-degree duration window, optimized for the 1000 to 5000 RPM powerband where street-driven and bracket-racing engines spend most of their operational time. The 112-degree lobe separation angle (LSA) provides the rpm range, valve overlap characteristics, and fuel atomization needed for solid throttle response without demanding premium fuel or extreme tuning.

Hydraulic flat tappet design offers significant advantages for small block Chevy builds: hydraulic lifters automatically adjust for valve lash, eliminating the need for frequent rocker arm adjustments and simplifying engine maintenance. The XE249H's moderate lift and duration values make it compatible with stock or mildly ported cylinder heads without requiring custom valve spring packages, reducing build complexity and cost. The 112-degree LSA strikes a balance between cam duration and overlap—aggressive enough to support responsive power delivery, yet conservative enough to maintain vacuum for power steering and brake assist on street applications. COMP Cams' Xtreme Energy series is known for precision manufacturing and consistent lobe profiles that deliver repeatable performance across a production run.

This camshaft suits small block Chevy engine builders targeting bracket racing, street performance, or dual-purpose applications where mid-range torque and rideability matter as much as peak horsepower. The 249/260-degree profile is ideal for naturally aspirated engines running stock or mildly upgraded intake manifolds. The hydraulic lifter system makes this cam a practical choice for builders maintaining original-style valvetrains or looking to upgrade older engines without complete top-end redesign. Verification of lifter compatibility, pushrod length, and rocker arm geometry with your specific block, head, and induction package is essential before ordering.