COMP Cams Camshaft CS 299Qs10 .900 Base

This is the COMP Cams CS 299Qs10 hydraulic roller camshaft, designed for small block Chevrolet engines built from 1987 onward that use a factory roller camshaft setup. It's a popular choice for builders looking to get more performance out of larger displacement street engines, or those aiming for a street/strip combination with good cylinder heads. This camshaft features a 4-pattern lobe design, which helps optimize valve events for improved performance across a wider RPM range.

The camshaft has a duration of 246 degrees intake and 256 degrees exhaust at .050 lift, with a 4-pattern lift of 248 degrees intake and 258 degrees exhaust. This specific grind is well-suited for stroker small blocks with displacements in the larger cubic inch range, especially when paired with well-ported cylinder heads. The .900-inch base circle is a key specification, allowing for proper geometry with OE-style roller lifters and ensuring it fits within the engine block without clearance issues. It's important to note that this camshaft is intended for OE roller small blocks and is not compatible with LT-1 or LS1 style engines.

When installing this camshaft, ensure you have the necessary components for a hydraulic roller setup, including roller lifters, roller rocker arms, and pushrods that are compatible with the camshaft's specifications. Proper valve springs that match the camshaft's lift and RPM range are also critical for reliable operation. This camshaft fits a wide range of vehicles, including many Chevrolet, Buick, and Cadillac models from the late 80s through the mid-90s with the correct engine configuration.