What is the recommended break-in procedure for this camshaft?

Proper break-in is crucial for hydraulic flat tappet camshafts. You'll need to run the engine at 2000-2500 RPM for about 20-30 minutes immediately after installation. Refer to the manufacturer's instructions for the full procedure to ensure proper cam and lifter seating.

Does this camshaft come with lifters or other installation hardware?

This product is for the camshaft only. It is recommended to use new lifters when installing a new camshaft to ensure proper operation and longevity. Any other necessary installation hardware, such as gaskets or seals, would need to be purchased separately.

Can this camshaft be used in California?

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

COMP Cams High Energy Camshaft A8 252H-10 10-200-4

Name: COMP Cams Camshaft A8 252H-10
Brand: COMP Cams
Price: 326.36 USD
Availability: InStock

COMP Cams Camshaft A8 252H-10

$326.36

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 High Energy Camshaft A8 252H-10 for AMC 290-401 engines. Offers strong torque and smooth idle.

Key Features

Fits AMC 290, 304, 343, 360, 390, and 401 cubic inch V8 engines.
Hydraulic flat tappet design for a smooth idle and automatic valve lash adjustment.
Provides strong torque, particularly in the lower to mid-RPM range.
Noted for excellent mileage, making it suitable for daily drivers.
Features a 206/206 degree intake and exhaust duration.
Designed as a good stock replacement camshaft for AMC engines.

⚠️ 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

This COMP Cams High Energy camshaft is designed for AMC V8 engines, specifically the 290, 304, 343, 360, 390, and 401 cubic inch displacements. It's a hydraulic flat tappet camshaft, meaning it uses hydraulic lifters to maintain zero valve lash automatically, contributing to a smooth idle and overall quieter operation compared to solid lifter cams. This makes it a solid option for stock replacement or for builds where a comfortable idle and good drivability are priorities.

The A8 252H-10 camshaft is engineered to provide strong torque, especially in the lower to mid-RPM range, which translates to better pulling power for your AMC-powered vehicle. It's also noted for offering excellent mileage, a notable benefit for drivers looking to balance performance with fuel efficiency. The 206/206 duration rating (intake/exhaust) is a common choice for these engines, offering a good compromise between low-end grunt and upper-end breathing without sacrificing that smooth, stock-like idle.

This camshaft fits a wide range of American Motors and Jeep vehicles from the late 1960s through the early 1990s, including models like the Jeep CJ series, Jeep Cherokee, AMC Javelin, and AMC Ambassador. When installing, remember to follow the manufacturer's recommended break-in procedure to ensure proper seating of the new cam and lifters.