SKU: COM42-308-4
UPC: 036584520153
MPN: 42-308-4
The Olds V8 Cam 270H (Hyd) 260-455 from COMP CAMS is a hydraulic flat-tappet camshaft engineered for Oldsmobile big-block V8 engines spanning the 260 to 455 cubic inch displacement range. This cam is purpose-built for enthusiasts and mechanics seeking reliable, street-friendly performance improvements without requiring complex valve train modifications. The 270H designation refers to a moderate lift and duration profile that balances drivability with noticeable power gains across the mid-range RPM band where most street and light-duty truck applications operate.
This hydraulic camshaft leverages COMP CAMS' precision manufacturing to deliver consistent valve timing and lift across the entire RPM spectrum. The hydraulic design eliminates the need for manual valve lash adjustment—the hydraulic lifters automatically compensate for thermal expansion and component wear, reducing maintenance intervals and ensuring stable performance in both hot and cold engine conditions. The 270H profile produces measurable increases in cylinder charge velocity and combustion efficiency, translating to improved torque output and throttle response without sacrificing fuel economy or cold-start reliability. Precision-ground lobes and hardened steel construction ensure longevity even under sustained high-RPM operation typical of weekend cruises and spirited driving.
The Olds V8 Cam 270H (Hyd) 260-455 is ideal for engine builders and restoration specialists working with classic Oldsmobile V8 powerplants, including 350, 400, 403, 425, and 455 variants. Installation requires basic mechanical knowledge and a camshaft degree wheel for proper timing verification; most experienced technicians complete installation during a routine engine rebuild or overhaul. This camshaft pairs seamlessly with stock intake and exhaust manifolds, original carburetor induction systems, and factory-spec cylinder heads, making it an accessible upgrade path for those maintaining originality while extracting genuine performance improvements.
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