What is the recommended valvetrain for this camshaft?

COMP Cams recommends using their matching hydraulic roller lifters and appropriate valve springs for this camshaft to ensure optimal performance and longevity. It's always best to consult the manufacturer's installation guide for specific recommendations.

Will this camshaft fit my 1975 Pontiac Grand Am?

Yes, this camshaft is listed as fitting the 1973-1975 and 1978-1979 Pontiac Grand Am. It is designed for Pontiac 265-455 V8 engines.

Does this camshaft come with lifters or valve springs?

This product listing is for the camshaft only. Lifters, valve springs, and other necessary valvetrain components are typically sold separately and should be chosen based on COMP Cams' recommendations for this specific camshaft grind.

COMP Cams XR264HR-10 Hydraulic Roller Camshaft 51-413-11

Name: COMP Cams Camshaft P8 XR264HR-10
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-p8-xr264hr-10-t14-135929
Price: 661.71 USD
Availability: BackOrder

COMP Cams Camshaft P8 XR264HR-10

$661.71

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 XR264HR-10 hydraulic roller camshaft for Pontiac 265-455 V8 engines. Improves performance with a 212/218 duration.

Key Features

Fits Pontiac 265-455 V8 engines.
Hydraulic roller camshaft design for improved performance and durability.
Intake duration of 212 degrees at .050 lift.
Exhaust duration of 218 degrees at .050 lift.
Designed for street performance applications.
Part number 51-413-11.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

With a 212 degrees of intake duration and 218 degrees of exhaust duration at .050 lift, this COMP Cams XR264HR-10 camshaft is built for Pontiac V8 engines ranging from 265 to 455 cubic inches. This hydraulic roller camshaft is designed to offer an improved powerband for street performance applications, giving you a noticeable boost in acceleration and overall engine response. It’s a popular choice for those looking to wake up their classic Pontiac, whether it’s in a Firebird, Grand Prix, or Catalina.

The Xtreme Energy series from COMP Cams is known for its ability to provide significant performance gains without requiring extensive modifications to your engine. This particular grind, the XR264HR-10, balances street drivability with a more aggressive power curve. It’s engineered to work well with stock or slightly modified cylinder heads and intake manifolds, making it a versatile upgrade for many Pontiac builds. You can expect a healthy increase in torque and horsepower, especially in the mid-range, which translates to a more engaging driving experience.

When installing this camshaft, it's important to ensure your valvetrain components are in good condition. COMP Cams recommends using their matching lifters and valve springs for optimal performance and reliability. While this camshaft is designed for a wide range of Pontiac V8s, always double-check the specific fitment for your vehicle to confirm compatibility. This is a significant upgrade for anyone looking to enhance the performance of their classic Pontiac V8.