Drag Cartel 004.5 Racing Camshafts for K-Series Are you pursuing the absolute maximum naturally aspirated power from your Honda K-series engine? The Drag Cartel 004.5 Camshafts are the result of rigorous, high-end race and dyno testing, engineered to deliver the most aggressive performance profile available for dedicated all-motor racing applications. These cams are the key to unlocking the K-series engine's full, untapped potential. Why are 004.5 Cams built for extreme performance? The 004.5 cams feature an extremely aggressive profile that maximizes airflow and top-end horsepower, making them essential for serious track use and competition builds Ultimate Horsepower: The high lift and duration specifications are designed for peak naturally aspirated performance, ensuring maximum airflow through the cylinder head. Aerospace-Grade Rigidity: Constructed from 8620 steel billet material, these cams provide superior strength and stiffness, which is crucial for reducing valve float and maintaining stability at sustained, extended RPM ranges. Precision Engineering: CNC-ground profiles ensure accuracy and faster valve action, taking full advantage of the K-series roller rocker design. Camshaft Specifications and Requirements The Stage 004.5 Cams are dedicated race components and absolutely require a fully upgraded valve train for safe and reliable operation. Material: All-New 8620 Billet Steel Intake Lobe Specs: Lift: 14.5 mm Duration @ 0.050": 0.276" Exhaust Lobe Specs: Lift: 13.7 mm Duration @ 0.050": 0.274" Required Upgrades (CRITICAL): Valve Train: Due to the extreme lift and duration, an upgraded valve spring and retainer combination is mandatory. We offer the Supertech SPR-H1021D 92lb Spring (Optional combo available) to safely manage these aggressive profiles. Installation Torque Specifications Ensure precise and reliable installation by adhering to the following factory torque values: Intake Cam Gear Bolt: 83 lb-ft Exhaust Cam Gear Bolt: 51 lb-ft Pulse Plates: 29 lb-ft Fitment and Engine Compatibility The Drag Cartel 004.5 Racing Cams are compatible with many popular K-Series platforms used in high-performance builds. Compatible Engines and Models: Make Model Engine Code Years Acura RSX Type S 2.0 K20A2 2002–2004 Acura RSX Type S 2.0 K20Z1 2005–2006 Acura TSX 2.4 K24A2 2004–2008 Honda Civic Si 2.0 K20Z3 2006–2011 Fits Both K20 & K24 Engines up to 8th Generation Honda Civics Incompatibility Warning: These cams are NOT compatible with the following engines: K24Z7 Block / Engines K24W1 Block / Engines Ready to build an all-motor beast? The Drag Cartel 004.5 Cams are your ultimate power upgrade!