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Callies Freedom Series Camshafts
Camshaft, LT Turbo 231, 231°/242° @ .050", .648"/.635" lift, 115.5°+3 LSA, 2500–7200 RPM
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Estimated Ship Date: Apr 16, 2027 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
181-041
Part Type:
Product Line:
Summit Racing Part Number:
CPI-181-041
Cam Style:
Hydraulic roller, OE roller
Camshaft Use:
Turbocharged
Camshaft Manufacturers Description:
High-lift, long-duration cam engineered for aggressive turbocharged LT applications. Maximizes airflow and top-end horsepower while maintaining usable boost response. Ideal for larger turbo setups or engines with ported heads and supporting mods. Strong mid- to high-RPM torque curve perfect for track or heavy-duty performance builds. 3° advance enhances throttle response and cylinder pressure under boost.
Basic Operating RPM Range:
2,500-7,200
Intake Duration at 050 inch Lift:
231
Exhaust Duration at 050 inch Lift:
242
Duration at 050 inch Lift:
231 int./242 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.648 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.635 in.
Valve Lift with Factory Rocker Arm Ratio:
0.648 int./0.635 exh.
Lobe Separation (degrees):
115.5
Remanufactured:
No
Computer-Controlled Compatible:
Yes
Valve Springs Required:
No
Quantity:
Sold individually.
Callies Freedom Series Camshafts
Callies Freedom Series camshafts are high performance camshafts engineered to deliver exceptional results across a wide range of street and street/strip builds, from mild upgrades to aggressive performance combinations. Each camshaft is precision ground from billet steel cores on state of the art CNC equipment and heat treated for outstanding strength and long term durability. Rigorous quality control, including precision measurements and laser scanning, ensures cam lobe geometry is consistent and meets Callies' exacting standards. With profiles ranging from mild naturally aspirated street applications to fully built naturally aspirated, supercharged, and turbocharged setups, the Freedom Series offers solutions for everything from waking up a stock engine to supporting the most demanding high performance cars and trucks.
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