What is the primary advantage of the CNC machining on these cylinder heads?

The fully CNC machined intake ports, combustion chambers, and exhaust ports allow for precise porting and smoother airflow. This results in improved performance, maximizing horsepower and torque for your engine.

Are these cylinder heads compatible with modern intake manifolds?

These heads maintain the stock 23-degree valve angle and the intake flange bolt pattern, specifically designed to work with intake manifolds from 1986 and earlier. For later model manifolds, modifications or adapters may be necessary.

What is included with these Edelbrock cylinder heads?

The Edelbrock E-CNC 225 cylinder heads come equipped with high-quality lightweight valve springs and heavy-duty hardware suitable for maximum lift. They are sold individually, so you will need to purchase two for a complete engine.

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Specifications

Brand: Edelbrock
Part #: 61205
UPC: 85347612055

Edelbrock Cyl Head SBC 23 Deg E-Cnc 225 Hyd Roller

Name: Edelbrock Cyl Head SBC 23 Deg E-Cnc 225 Hyd Roller
Brand: Edelbrock
SKU: edelbrock-edelbrock-cyl-head-sbc-23-deg-e-cnc-225-hyd-roller-t14-128092
Price: 1904.90 USD
Availability: BackOrder

$1904.90

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Edelbrock E-CNC 225 Small Block Chevy cylinder heads. Fully CNC ported for maximum horsepower and torque.

Key Features

Fits 56+ vehicle make/model combinations.
Fully CNC machined intake ports, combustion chambers, and exhaust ports for improved performance.
Maintains the stock 23-degree valve angle and intake flange bolt pattern for use with 1986 and earlier intake manifolds.
Offers up to 30-60 horsepower increase over the Performer RPM cylinder head.
Features 7/16" studs and angled spark plugs.
Includes high-quality lightweight valve springs and heavy-duty hardware for maximum lift.

⚠️ 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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About this part

Product Details

Starting with the fully CNC machined intake ports, combustion chambers, and exhaust ports, the Edelbrock E-CNC 225 cylinder heads are built for serious performance. These heads maintain the stock 23-degree valve angle and the intake flange bolt pattern, meaning they'll work with intake manifolds from 1986 and earlier. This design choice makes them a straightforward upgrade for many classic Small Block Chevy builds.

The E-CNC 225 heads are designed to significantly increase horsepower and torque, offering an improvement of up to 30-60 horsepower over the Performer RPM cylinder head. They come equipped with high-quality, lightweight valve springs and heavy-duty hardware capable of handling maximum lift, making them suitable for both high-performance street applications and dedicated racing use. Each head is made in the U.S.A., ensuring a well-built component for your engine.

These cylinder heads fit a wide range of Small Block Chevy applications, including popular models like the Chevrolet C10, Camaro, and GMC C1500. They are ready to help you extract more power from your V8 engine.