What kind of idle sound can I expect from this camshaft?

This COMP Cams Thumpr camshaft is designed to produce a noticeable choppy and thumping idle sound. It's a key characteristic of the Thumpr series, giving your engine a more aggressive auditory profile.

What is the advantage of a hydraulic roller camshaft?

Hydraulic roller camshafts generally offer reduced friction compared to traditional flat tappet designs. This can lead to improved performance, better durability, and a wider operating RPM range for the engine.

What other components might I need when installing this camshaft kit?

While this is a kit, it's always recommended to consult the manufacturer's installation guide for a complete list of required components and procedures. This may include items like new valve springs, retainers, and lifters if not included, as well as appropriate break-in oil.

COMP Cams CS 283T HR-107 T Hydraulic Roller Camshaft Kit GK0

Name: COMP Cams Camshaft Kit CS 283T HR-107 T
Brand: COMP Cams
Price: 1261.81 USD
Availability: InStock

COMP Cams Camshaft Kit CS 283T HR-107 T

$1261.81

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COMP Cams CS 283T HR-107 T hydraulic roller camshaft kit for OE roller SBC engines. Creates a choppy idle and improved performance.

Key Features

Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc).
Thumpr 227/241 Hydraulic Roller Cam profile for a choppy, thumping idle.
Suitable for high-performance street applications.
Works with stock torque converters, but best with 2000+ RPM converters and gears.
Hydraulic roller design for improved performance and reduced friction.
Part number GK08-600-8.

⚠️ 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 is the COMP Cams CS 283T HR-107 T Hydraulic Roller Camshaft Kit, designed for Small Block Chevrolet engines that came with factory roller camshafts. It's built to give your engine a more aggressive, thumping idle and improved performance for street applications. This kit is a solid option if you're looking to change the character and powerband of your engine, and it works well with stock torque converters, though a 2000+ RPM converter and appropriate gearing will unlock its full potential.

The Thumpr camshaft series from COMP Cams is known for its distinctive idle sound, and this 227/241 duration profile is engineered to deliver that aggressive chop. It's a hydraulic roller design, which means it offers reduced friction and better performance compared to flat tappet cams. This kit is intended for OE roller Small Block Chevys from 1987 and newer, excluding LT-1 and LS1 variants. It fits a wide range of vehicles, including classic Chevrolet and GMC trucks, as well as models like the Camaro and Corvette from the late 80s and early 90s.

When installing this camshaft, it's important to follow the manufacturer's instructions carefully to ensure proper break-in and optimal performance. While it can work with a stock converter, upgrading to a higher stall speed converter and suitable rear-end gears will significantly enhance the cam's effectiveness, especially for performance driving. This kit is a significant upgrade for those seeking a noticeable change in their engine's sound and power delivery.