What kind of idle can I expect with this camshaft?

This is a high-performance camshaft designed for street and strip use. As such, it will produce a rougher idle compared to a stock camshaft. This is a normal characteristic for this type of performance upgrade.

What other modifications are recommended to use this camshaft?

To maximize performance, COMP Cams recommends an engine with at least 9:1 compression, a torque converter with a 2500+ RPM stall speed for automatic transmissions, and upgraded intake, gears, and headers. These components help the camshaft perform to its potential.

Is this camshaft legal for use in California?

No, this camshaft is not CARB approved and cannot be shipped to California due to emissions regulations.

COMP Cams Hydraulic Flat Camshaft 96-601-5 - Buick 400, 430,

Name: COMP Cams Camshaft B455 287T H-107 T Th
Brand: COMP Cams
Price: 413.99 USD
Availability: InStock

COMP Cams Camshaft B455 287T H-107 T Th

$413.99

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

COMP Cams is known for performance engine parts. This Mutha' Thumpr camshaft is for Buick 400, 430, and 455 V8s, offering high performance for street and strip use.

Key Features

Fits 1967-1976 Buick models including Electra, LeSabre, and Riviera, as well as 1972 Pontiac Catalina.
Designed for Buick 400, 430, and 455 V8 engines.
Hydraulic flat tappet design for high-performance street and strip use.
Requires 9:1 compression ratio or higher.
Requires a 2500+ RPM stall speed torque converter for automatic transmissions.
Best results achieved with upgraded intake, gears, and headers.

⚠️ 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

COMP Cams is a well-known name for performance engine components, and this Mutha' Thumpr camshaft is built for drivers looking to get more out of their Buick V8. This hydraulic flat tappet camshaft is designed for Buick 400, 430, and 455 cubic inch engines, fitting a range of vehicles including the Buick Electra, Riviera, and LeSabre from the late 60s through the mid-70s. It's intended for high-performance street and strip applications, so expect a noticeable change in how your engine behaves.

To get the most out of this camshaft, you'll need to ensure your engine setup can support it. COMP Cams recommends a minimum of 9:1 compression, a 2500+ RPM stall speed torque converter if you have an automatic transmission, and that you have intake, gears, and headers already installed or planned. This combination helps unlock the camshaft's potential for improved performance. Be aware that this camshaft will result in a rougher idle compared to stock, which is typical for performance grinds like this.