What other modifications are recommended when installing this camshaft?

For optimal performance and drivability with the COMP Cams 290HR-12 camshaft, it is recommended to pair it with custom tuning, headers, and gears. A torque converter with a stall speed of 2200 RPM or higher is also advised to effectively manage the camshaft's characteristics.

What kind of idle can I expect with this camshaft?

This camshaft is designed for performance and features a rough idle. This is a common characteristic of aggressive camshaft profiles that increase valve overlap, indicating a more performance-oriented setup.

Can this camshaft be shipped to California?

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

COMP Cams LT1 290HR-12 Camshaft 07-306-9

Name: COMP Cams Camshaft LT1 290HR-12
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-lt1-290hr-12-t14-4389648
Price: 542.96 USD
Availability: BackOrder

COMP Cams Camshaft LT1 290HR-12

$542.96

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 LT1 290HR-12 hydraulic roller camshaft for GM LT1/LT4 engines. Features a rough idle and requires custom tuning.

Key Features

This is a COMP Cams Xtreme Energy hydraulic roller camshaft.
It has a 230 degree intake duration and 244 degree exhaust duration at .050 inch lift.
Designed for GM LT1 and LT4 engines.
Features a rough idle characteristic.
Requires custom tuning, headers, gears, and a 2200+ RPM stall torque converter.
Not CARB approved and cannot ship to California.

This camshaft is designed for various GM LT1/LT4 applications including Chevrolet Corvette, Camaro, Firebird, Caprice, and Cadillac Fleetwood models from the early to mid-1990s with 5.7L engines, as well as some 4.3L Caprice models.

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Product Details

This COMP Cams Xtreme Energy camshaft features a 230 degree intake and 244 degree exhaust duration at .050 inch lift, designed for GM LT1 and LT4 engines. This hydraulic roller camshaft is built for performance applications where a noticeable idle is acceptable and custom tuning is part of the build. It's intended for use with headers, gears, and a torque converter with a stall speed of 2200 RPM or higher to effectively manage the increased overlap and rougher idle characteristics.

The 290HR-12 camshaft is a well-built component for those looking to extract more power from their LT1 or LT4 engine. Its aggressive ramp rates and increased valve lift are designed to improve airflow into and out of the cylinders, especially when paired with other performance modifications like upgraded exhaust systems and intake manifolds. This camshaft is a significant upgrade over stock, and its performance benefits are most realized when the entire engine combination is optimized for its specific profile. Expect a distinct idle sound that lets you know this camshaft means business.

When installing this camshaft, it's important to have custom tuning ready to go, as the engine management system will need to be recalibrated to properly handle the camshaft's specifications. This ensures optimal performance, drivability, and engine health. This camshaft is not CARB approved and cannot be shipped to California.