What kind of idle sound can I expect with this camshaft?

This COMP Cams Classic Thumpr camshaft is specifically designed to produce a choppy and thumping idle sound, characteristic of many performance street cams. It's a notable feature that many enthusiasts look for in classic engine builds.

Do I need to replace my torque converter when installing this camshaft?

No, this camshaft is designed to work well with a stock torque converter. This can simplify the installation process and potentially reduce the overall cost of your engine upgrade.

What other parts should I consider replacing when installing a new camshaft?

When installing a new camshaft, it's a good practice to replace the lifters to ensure proper break-in and performance. Inspecting your valve springs for wear and proper tension is also recommended for optimal valvetrain health.

COMP Cams Camshaft 364-425 279T H-107 T 91-600-5

Name: COMP Cams Camshaft 364-425 279T H-107 T
Brand: COMP Cams
Price: 529.20 USD
Availability: InStock

COMP Cams Camshaft 364-425 279T H-107 T

$529.20

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams camshaft for Buick 364, 401, 425 Nailhead engines. Delivers strong torque with a classic choppy idle.

Key Features

Fits 1957-1966 Buick models with 364, 401, and 425 Nailhead engines.
Provides a classic choppy/thumping idle sound.
Designed for street applications, offering strong torque with a stock torque converter.
Features 227 degrees intake duration and 241 degrees exhaust duration.
Has a 107-degree lobe separation angle for improved low-end torque.
Hydraulic flat tappet design.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're looking to give your classic Buick Nailhead engine a serious dose of street performance, this COMP Cams Classic Thumpr camshaft is a solid choice. Designed specifically for Buick 364, 401, and 425 cubic inch engines, this camshaft aims to provide that unmistakable choppy, thumping idle that enthusiasts love, while also improving torque for street applications. It's built to work well with a stock torque converter, making it a more straightforward upgrade for many builds.

This camshaft features a 227-degree intake duration and a 241-degree exhaust duration, with a lobe separation angle of 107 degrees. These specifications are chosen to create a strong torque curve that pulls well from lower RPMs, making your vehicle feel more responsive in everyday driving. The hydraulic flat tappet design is a popular choice for many classic engine builds, and COMP Cams is well-known for producing reliable valvetrain components. This particular grind is intended for street use, balancing an aggressive idle sound with usable power gains.

When installing a camshaft, it's always recommended to replace your lifters and inspect your valve springs to ensure optimal performance and longevity. It's also important to note that this camshaft is not CARB approved and cannot be shipped to California. This camshaft fits a wide range of Buick models from the late 1950s through the mid-1960s, including popular vehicles like the Electra, LeSabre, and Wildcat, among others.