What is the primary benefit of the 358 VVT/AFM 27 camshaft grind?

The 358 VVT/AFM 27 camshaft grind is designed to provide a significant improvement in mid-range power and torque. This results in better acceleration and a more responsive feel, especially in everyday driving scenarios.

Can I keep my factory VVT and AFM systems with this camshaft?

Yes, this camshaft is specifically designed to work with GM's factory Variable Valve Timing (VVT) and Active Fuel Management (AFM) systems. This allows you to retain these features while still gaining performance.

What other components should I consider when installing this camshaft?

When installing a new camshaft, it's highly recommended to replace the valve springs and pushrods to ensure proper operation and durability. Proper engine computer tuning is also essential to take full advantage of the camshaft's performance capabilities.

COMP Cams GM LS 358 VVT/AFM 27 Camshaft 689-425-13

Name: COMP Cams Camshaft GM LS 358 VVT/AFM 27
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-gm-ls-358-vvt-afm-27-t14-4393290
Price: 589.76 USD
Availability: BackOrder

COMP Cams Camshaft GM LS 358 VVT/AFM 27

$589.76

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 GM LS 358 VVT/AFM 27

Key Features

Fits GM LS engines with VVT and AFM.
Part number 689-425-13.
Designed to improve mid-range power and torque.
Retains factory VVT and AFM systems.
Works with stock or mildly modified cylinder heads and intake manifolds.
Not CARB approved; cannot ship to California.

This camshaft is designed for GM LS engines equipped with VVT and AFM. Please consult manufacturer fitment data to confirm compatibility with your specific vehicle and engine configuration.

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Product Details

This COMP Cams Camshaft, part number 689-425-13, is specifically designed for GM LS engines that feature Variable Valve Timing (VVT) and Active Fuel Management (AFM). It's a popular choice for LS swaps and builds looking to improve performance while retaining these factory technologies. The 358 VVT/AFM 27 grind offers a noticeable bump in power and torque, especially in the mid-range, making it suitable for a wide variety of applications from daily drivers to more performance-oriented builds.

COMP Cams has engineered this camshaft with a focus on drivability and compatibility with factory VVT and AFM systems. This means you can often retain your stock torque converter and other supporting components, simplifying the installation process. The camshaft profile is designed to work well with stock or mildly modified cylinder heads and intake manifolds, providing an improved powerband without requiring extensive modifications. It's a well-built component that aims to deliver a significant performance upgrade for your GM LS engine.

When installing this camshaft, it's important to ensure you have the correct supporting components. While it's designed to work with VVT and AFM, you'll need to verify compatibility with your specific engine's computer tuning. It's also recommended to replace valve springs and pushrods when installing a new camshaft to ensure optimal performance and longevity. This camshaft is not CARB approved and cannot be shipped to California.