COMP Cams Camshaft A8 279T H-107 T Thumper

COMP Cams is well-known for making performance parts that help engines run better, especially in muscle cars and street rods. This A8 279T H-107 T Thumper camshaft is designed to give your AMC or Jeep engine a serious performance boost. It's built to create that aggressive, hard-hitting exhaust note you hear at idle, making your vehicle sound as mean as it performs. This camshaft is a great choice if you're looking to get more horsepower and a broader torque curve out of your engine.

The design of this Thumper camshaft features an early intake valve opening and a long exhaust duration. This setup creates a lot of valve overlap, which is what gives you that distinctive race car idle sound. To make sure your drivetrain can keep up with the engine's improved powerband, you'll typically need an aftermarket torque converter with a higher stall speed (around 2000 RPM or more) and a lower gear ratio. Also, be aware that this camshaft can reduce vacuum at idle, so if your vehicle has power brakes, you'll likely need to install a vacuum canister, pump, or hydroboost system to maintain proper brake assist.

This camshaft fits a wide range of AMC vehicles, including models like the AMX, Ambassador, and Hornet, as well as many Jeep models such as the CJ5, CJ7, Cherokee, and Wagoneer. It's a solid option for anyone wanting to add a noticeable performance upgrade and a unique idle sound to their classic American or Jeep vehicle.