Crower 52243 Features:

Crower 52243 hydraulic flat tappet camshaft for Buick 400, 430, and 455 V8 engines; Level 4 Compu-Pro profile for heavily modified street-strip builds. 248°/252° duration at .050 in., .546 in./.559 in. gross lift, 1.6/1.6 rocker ratio, and 112° lobe separation angle for strong mid-range and top-end power. Operates in the 2000 to 5000 rpm range with a 5500 rpm redline and a definite lope at idle, making it ideal for aggressive hot street, drag strip, and marine use. Advertised duration is 311° intake and 316° exhaust; designed to deliver strong torque and horsepower in ultra-performance Buick big-block combinations.

Buick 400-455 Compu-pro H 248°/252° .546/.559 In. Lift 112° Features:

• Hydraulic flat-tappet camshaft for Buick 400, 430, 455 V8 applications; 248°/252° duration at .050 in. lift for aggressive street-strip power
• .546 in./.559 in. gross lift with 1.6/1.6 rocker ratio; strong mid-range and top-end torque and horsepower with pronounced idle lope
• 112° lobe separation angle with 311°/316° advertised duration; tuned for 2000 to 5000 rpm operating range and 5500 rpm redline
• Level 4 ultra-performance profile for heavily modified engines; ideal for hot street, drag strip, marine, and oval-track combinations
• Best with 10.25:1+ compression, headers, dual exhaust, large CFM carburetor, performance ignition, and high-stall or manual drivetrain setups

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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