What does 'bare cylinder head' mean?

A bare cylinder head comes without any internal components like valves, springs, retainers, or seals. This allows you to choose specific parts that match your engine's performance goals and your build requirements.

Why is a CNC machined combustion chamber important?

CNC machining creates a highly precise and consistent combustion chamber shape and volume. This leads to improved airflow, more predictable compression ratios, and ultimately, better engine performance compared to hand-finished or less precise methods.

What kind of Pontiac engines does this cylinder head fit?

This Edelbrock cylinder head is designed for Pontiac V8 engines manufactured between 1962 and 1979, including displacements from 326 (5.3L) up to 455 (7.4L) cubic inches.

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Specifications

Brand: Edelbrock
Part #: 60539
UPC: 85347605392

Edelbrock Cylinder Head Pontiac Performer RPM CNC Chamber 72cc Bare Single

Name: Edelbrock Cylinder Head Pontiac Performer RPM CNC Chamber 72cc Bare Single
Brand: Edelbrock
SKU: edelbrock-edelbrock-cylinder-head-pontiac-performer-rpm-cnc-chamber-72cc-bare-si-t14-127832
Price: 1361.15 USD
Availability: BackOrder

$1361.15

On Backorder

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

Edelbrock Cylinder Head Pontiac Performer RPM CNC Chamber 72cc Bare Single. Features CNC machined chambers for improved flow.

Key Features

Fits 1962-79 Pontiac 326 (5.3L), 350 (5.7L), 389 (6.4L), 400 (6.6L), 421 (6.9L), 428 (7.0L), and 455 (7.4L) c.i.d. engines.
Features a CNC machined combustion chamber for consistent volume and improved flow performance.
72cc chamber size is ideal for higher compression engine builds.
Port flange configuration is patterned after the 1969-1970 Ram-Air IV Pontiac Cylinder Head.
Has thicker deck surfaces compared to other brands for a more solid build.
This is a bare cylinder head, allowing for custom valvetrain component selection.

This cylinder head is designed for 1962-79 Pontiac V8 engines ranging from 326 to 455 cubic inches.

⚠️ 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

If you're rebuilding the top end of your 1962-79 Pontiac 326 through 455 cubic inch V8, a well-built cylinder head is crucial for performance. This Edelbrock Performer RPM CNC bare cylinder head is designed to give your engine a significant boost in airflow and efficiency. It's patterned after the port flange of the legendary Ram-Air IV Pontiac cylinder head, giving you a solid foundation for a high-performance build.

What sets this head apart is the CNC machined combustion chamber. This advanced machining process ensures a consistent and precise chamber volume, which directly translates to improved flow characteristics and more predictable compression ratios. With a 72cc chamber volume, these heads are particularly well-suited for higher compression builds where maximizing power output is the goal. The deck surfaces are also thicker than many other heads on the market, offering a robust platform for your build.

Since this is a bare cylinder head, it allows you to select the exact valvetrain components – like valves, springs, retainers, and locks – that best match your engine's specific needs and your performance goals. This level of customization is key for serious engine builders. Remember that this part is not CARB approved and cannot be shipped to California.