SKU: COM42-231-4
UPC: 036584520344
MPN: 42-231-4
The COMP CAMS Olds V8 Cam 280H (Hyd) 260-455 is a purpose-built hydraulic flat tappet camshaft engineered for Oldsmobile V8 engines ranging from 260 to 455 cubic inches. This camshaft serves restoration specialists, performance engine builders, and classic car enthusiasts who demand reliable valve actuation and predictable power delivery in vintage muscle and street machines. The 280H designation reflects a mid-range lift profile designed to balance street drivability with respectable performance gains while maintaining compatibility with factory hydraulic valve train geometry.
This hydraulic flat tappet design features symmetrical 0.490-inch lift on both intake and exhaust lobes with a 280-degree duration specification and 110-degree lobe separation angle, optimized for 2000 to 6000 RPM operating range. Hydraulic lifters automatically compensate for thermal expansion and valve train wear, eliminating the need for manual valve adjustments and reducing maintenance complexity in daily-driven applications. The flat tappet design maintains compatibility with OEM pushrods and rocker geometry, making installation straightforward for engine rebuilds and upgrades without requiring extensive valve train modification.
This camshaft is ideal for Oldsmobile V8 builds targeting reliable street performance, whether for 260, 307, 350, 403, 425, or 455 displacement variants. Buyers performing complete engine overhauls or mid-life restorations will appreciate the proven COMP CAMS engineering and the balanced valve lift profile that avoids extreme rocker ratios or port work. Proper installation requires fresh hydraulic lifters and verification of pushrod length to ensure optimal valve train clearance and consistent performance across all RPM ranges specified.
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