Experience the thrill of enhanced performance with the COMP Cams Thumpr Hydraulic Camshaft Kit, precision-engineered for 1958-79 AMC 290-401 V8 engines. Each COMP Cams camshaft undergoes stringent testing to ensure superior quality and unwavering reliability.
This kit features a unique Thumpr design, specifically tuned to deliver impressive horsepower gains across a wide, usable torque band, making it the ultimate upgrade for muscle cars and street rods. The optimized intake valve timing and extended exhaust duration create aggressive valve overlap, resulting in that unmistakable, powerful exhaust note.
For optimal performance and that signature Thumpr sound, we recommend pairing this camshaft with aftermarket torque converters and higher rear gear ratios. Elevate your AMC V8’s presence and power with this expertly crafted camshaft solution.


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