Centroid Performance Racing

Centroid Performance Racing

The world's #1 choice for performance racing machine tools.

A560 5-Axis CNC Articulating-Head Porting Machine

A560 XL 5-Axis Cylinder Head Porting Machine

Extra large machining envelope and 120° of head tilt provide unmatched capabilities

Call John Cowher for details or a formalized quotation. 814-571-4955 (direct)

The new A560 XL: a revolution in cylinder head porting and machining. The A560 is offered in two sizes, regular (A560) and extra large (A560 XL).Whether you need to port long V12 or diesel cylinder heads, have a large production volume of heads to port, or have a specialty application requiring extreme angles, the CENTROID A560 XL is the only choice. Unique heavy duty ballscrew drive articulating 5th axis provides superior rigidity than the competition. The XL is bigger and heavier in every way, this enables the XL to handle big heads, steel heads, cast iron heads and serious production machining capabilities. Included in the A560 XL turn-key package is a starter tooling package, expert training, and outstanding customer service and support.

Quick links: A560 XL Brochure (PDF) | Request a quote or in-person demo | Find your local representative

A560 XLTurnkey Package Includes:

  • Patented 5-axis CNC machine
  • M400 5-axis CNC control
  • Mastercam 5 axis CNC software with Port Expert.
  • 6 days personalized CNC porting training
  • 2 days personalized CNC Block training.
  • Digitizing probe & software
  • Starter Tooling package
  • Auto tool length setter
  • Cylinder head fixture plate
  • Tool holders
  • MPG electronic handwheel
  • Industry's best warranty & support

The A560 can port cylinder heads from a wide range of engine configurations: V12,V10, V8 heads, V6, Inline 6, 5 and 4 cylinders, Import, Motorcycle, Gas and Diesel engines. The CENTROID porting system overcomes limitations of other cnc porting machines with its unique and patented technology which provides better ports with seamless transitions.
Link to Photo Album.

The A560 has the capacity to CNC port long cylinder heads such as inline 6 cylinder gas and diesel heads. CENTROID has simplified the porting process, now you can digitize a head in the morning and be cutting perfect copies in the afternoon. The combination of accuracy, repeatability, training and support allows our customers to produce the most powerful race winnings heads on the market.


A560 porting a cylinder head

Patented Ballscrew Design

CENTROID's ballscrew drive articulating head was designed specifically for CNC Cylinder head porting. Made in the USA of rigid cast iron, the articulating head provides 60 degrees of tilt in each direction (120 degrees total) so the tool can cut even the most radical ports. The design of the A560 minimize tool motion for fast smooth cutting action. The unique ballscrew drive of the articulating head produces the smoothest 5 axis action on the market. The design also overcomes back lash and maintenance problems found with our competitors machines. Where others have tried CENTROID has succeeded with this ingenious robust design which produces fantastic ports.

CNC machined cylinder head port

Combustion Chamber

Versatile CNC Machine

Multi use machine: Port Cylinder heads and intake manifolds, machine combustion chambers, engrave letters, numbers and symbols, add o-ring grooves and more. V12,V10,V8 heads, V6 and 4 cylinders,Diesel, Import and motorcycle engines. Machine Aluminum, Cast Iron, Steel, & Composites.


Perfect Port Matching!

No other machine matches the accuracy of the the CENTROID porting system. Our superior combustion chamber side to manifold side matching guarantees that your design is being machined right where it is supposed to be.

Digitize and cut on the same machine

The A560 also has the capability to digitize in five axes. So, there is no extra machine to buy or out-of-house digitizing expense. The A560 comes equipped with on-machine 5 axis automatic cylinder head port digitizing. Copy and cut a head in less than a day, start to finish.

More than just a porting machine!

With it's +/-60° of head-tilt and a generous work envelope, the A560 excels at machining complex and difficult to fixture parts... making it well suited to a variety of applications beyond cylinder head porting.

Digitizing Probe

Integrated Automatic 5-axis Digitizing!

Digitize and Cut using the same machine and the same control software. No extra software to learn, no extra CMM machine necessary to digitize a head. The same setup menus used to cut are used to digitize. Real 5-axis Digitizing method is a CENTROID exclusive time saving feature that produces better results than the competition. No comparison to the 3 axis patch method the CENTROID 5-axis intake and exhaust port digitizing is fast and accurate. No other system can beat it!

Designed for Cylinder Head Digitizing

CENTROID's DP-7 probe and software is specifically designed for digitizing cylinder head intake, exhaust ports and combustion chambers. This patented probe has special features just for cylinder head copying. Simple for users to specify copy resolution for the most accurate and best results.

Automatic Head Setup

Not only is the probe used to copy your custom shapes, the same probe automatically sets the Head zero locations on the fixture. Quick, Accurate, Automatic part setup saves you time and makes setup simple.

Ultra accurate, stainless steel construction, advanced patented circuitry, interchangeable styli, Made in the USA

A560 XL Machine Specifications

Table Size 25.5” x 66.9” (650mm x 1700mm)
Longitudinal travel (X) 60" (1525mm)
Cross travel (Y) 26" (660mm)
Vertical travel (Z) 37.7" (950mm)
Spindle center to column 30" (762mm)
Maximum table load 2425lbs (1100kg)
Spindle power 36 Hp / 27 kW
Spindle taper CAT 40 (BT40 optional)
Spindle speed 20,000 RPM
Rapid feed rates (X,Y,Z) 1000 IPM XY, 865 ipm Z
ATC 24 Pocket Swing Arm Tool Changer
Guide ways Heavy Duty Linear Guide ways X,Y(Twin),Z
Accuracy 0.0005" (0.0127mm)
Repeatability 0.0002" (0.0051mm)
Axis drive motors 2X,Y,B 2.9kW, Z 4.4kW, A 1.8kW AC Brushless
Coolant pump 75 PSI Max, up to 35 gal/min, 110 Gallon Capacity
Auto lubrication pump 2.5Amp 2 litre reservoir
Power requirement 50-60Hz, 208-240v, 3-Phase 100A
Air requirement 90-100 PSI (6.2-6.8 Bar)

Machine Footprint

Length 196" (4979mm)
Width 138" (3506mm)
Max. Height 119" (3023mm)

Shipping Footprint

Length 156" (3963mm)
Width 92" (2337mm)
Height 111" (2820mm)


Machine 23,000lbs (10,432Kg)

Download the Brochure with Spefications in PDF, click here..

Machine Features:

  • M400 CNC control, Touch screen, Windows 10 OS, Quad core processor, SSD,USB,Wifi, Remote Support Access via internet, software updatable
  • +/- 60° (120° total) of head tilt, & machine geometry is so that cutter is center of rotation
  • All new for 2020 Heavier Machine Frame, with increased X,Y,Z travels
  • Full Enclosure w/ chip auger
  • 36 Hp 3 phase 20,000 RPM spindle, quick change CAT 40 taper
  • Laser calibrated for high accuracy
  • Massive cast iron B-axis with patented ballscrew drive for ultimate accuracy and damping for smooth cutting action, no gears!
  • Roller Cam rotary table in the A axis, provides longer life, less backlash, heavier duty construction providing maximum rigidity
  • C5 double nut ballscrews, direct drive.
  • Powerful AC servo motors on all axes, maximum torque and performance
  • Near zero backlash on all axes.
  • Heavy duty linear ways
  • Arm type Automatic Tool Changer (aka ATC) holds up to 24 tools at the same time.
  • Massive Meehanite Casting Stress relieved = smooth accurate cuts
  • CENTROID Digitizing probe, copy 3D shapes, blue print blocks, finds locations, sets zeros
  • Automatic tool length measurement
  • Automatic part zero position
  • Jog Handwheel (aka MPG)
  • Spindle chiller, 100% duty cycle
  • Auto Tool Coolant system with large coolant tank and high pressure
  • 1000 psi CTS (coolant thru spindle) option
  • Telescopic steel way covers
  • Power Drawbar, finger tip changing of tools in manual mode
  • Auto central lubrication system
  • Disc type oil/coolant separator
  • Safety glass front

    * Please note specifications and features subject to change without notice

CNC Cylinder Head porting and CNC block blueprinting and machining on the same machine!

Cylinder Heads to Blocks,
One machine, One fixture,
Zero swap-over time.

With the Block option the A560 XL transforms into a state of the art CNC Block blueprinting and machining center. There are no fixtures to swap out or realign to switch from cylinder heads to blocks! See a big block chevy brodix head being ported and a sbc block being blueprinted and machined on the same machine. click here for the video.

Machine Cylinder Heads,
and Engine Blocks,
with the A560 XL PB (Port/Block)

The A560 is really three machines in one. A state of the art CNC cylinder head machining center, a CNC block blueprinting and machining center and a all-around parts making machine. The A560 has the power and the rigidity to produce the best combustion chamber to manifold side transitions while at the same time producing the super low RA's on Block work.

Boring, Surfacing, Four bolt main cap conversion, Head stud conversion, Lifter boring, Stroker clearance machining, Block litening, Engraving, Freeze plug machining & threading, Drilling, Tapping, Threadmilling, cylinder head surfacing, manifold port matching and porting,


Make all kinds of parts with the A560

Make all kinds of parts!

Machine: Pistons, Manifolds, Covers, Impellers, Adapters, Spacers, Throttle Bodies, Injector rails, Connecting Rods, Bushings and more!

The built-in "Intercon" conversational programming software has many pre-programmed canned cycles for making parts. Circular and Rectangular Pocketing, Frame milling, Drilling (regular, chip breaking, deep hole), Tapping ( compression, rigid, regular and peck tapping), Threadmilling, Lines, Arcs, Cutter compensation, Onion skin pocket clean out, bolt hole circles, Facing cycles, auto corner radius, Canned subprograms: Mirror, Repeat, Depth Repeat, Rotate, Irregular Pocket cleanout with island avoidance, Auto finish pass, and Programming Help screens.

CNC Block Blueprinting with the DP4 touch probe

Automatic CNC Block Blueprinting: CNC Probing

Blueprinting any block begins by making very accurate measurements of the existing features so corrections can be made. The old way of laborious manual measurement has been eliminated. The CENTROID B4250 CNC Block machine is equipped with a high tech digitizing probe which automatically locates and measure cylinder bores (diameters, locations and angles), deck heights, and lifter bores with our exclusive easy to use block specific conversational software. To measure an entire block, simply choose the features to blueprint and the probe automatically measures the block and displays the actual diameters and positions of the cylinder bores (and other features) and compares it to the factory specs. The operator then chooses to make any modifications necessary.

The CENTROID DP-7 Probe is a state of the art, made-in-USA highly precise probe which can detect in all axis and directions. Since the probe is made by CENTROID the entire probing system is integrated and streamlined into the CNC machine, making block digitizing and probing a quick and simple process. Much more accurate, faster and repeatable than manually blueprinting a block!

Cylinder Boring

CNC Engine Block Cylinder Boring

Automatic Boring cycles are pre programmed and are menu driven with a simple fill-in-the-blank format. 360 degree CNC rotary axis will position the block at the exact blueprint angle automatically. Machine both cylinder banks with the same setup. Block database saves your work for future jobs. Bore on probed centers, blueprint, or any other specified location. Specialized boring tooling included. Quick, simple programming gets the job done accurately the first time. Operators program the block work to be done right at the machine.

Deck Surfacing with the CENTROID Flycutter

CNC Engine Block Surfacing

With a quick push button tool change the machine will surface the block to the exact deck height specified. The probe automatically detects the block existing surface height at multiple locations so the operator can choose the proper surface depth to machine to for a perfectly flat and square deck to the cylinder bore. Specialized CNC block surfacing tooling is included which produces incredibly smooth surfaces for superior gasket performance.

Lifter Bore Spot Facing

Head Stud conversion, automatic, drill, counter bore and tap... just takes minutes.

Convert blocks for head studs with ease. The machine will automatically drill out the exisiting threads counter bore the lead in and rigid tap (or threadmill) the threads to accept the new head studs. The CENTROID user friendly CNC Block software is conversational format which means all you have to do is fill in the blanks with the basic block information, no need to go out of house or learn G-codes, our easy to learn Block Software is made specifically for engine builders saving you time. You can save all of your programs and base new ones off of existing work, building a custom group of block machining programs specific to you applications!

Lifter Bore Spot Facing

CNC Spot Facing

Spot Face Lifter bores automatically. You have the ability to create and save your programs with CENTROID user friendly CNC Block software. No need to go out of house or learn G codes, our easy to learn Block Software is made specifically for engine builders saving you time.

Lifter Boring

CNC Lifter Bore Machining

Machine lifter bores to the exact diameter, location and angle needed with one simple setup. True up the stock size and location or bore complete new diameter, location or angle. Easily control feed and speed within the CENTROID conversational block software, the computer remembers your data for the next job as well, no need to reprogram. Easy manual override of programmed feeds and speeds via the operator control panel makes fine tuning adjustments easy to do on the fly.

Main Bearing Cap Conversion

4-Bolt Main Bearing Cap Conversion

The best way to accurately convert a block to 4 bolt mains. Automatic CNC drill and tap routines are pre programmed, the operator simply answers a few questions and the machine does the rest. CNC Angle Drilling and tapping for perfect 4 bolt main conversions. Straight or Splayed 4 bolt mains are no problem.

Cylinder Bore Chamfering

Cylinder Bore Chamfering

Chamfer cylinder bores automatically. Operators specifies amount of chamfer. Machine chamfers perfectly concentric with bore.

O-Ring Grooving

O-Ring Grooving*

Add o-ring grooves the the deck of any block. Any width and any depth, operator specifies oring specs and the machine does the rest.

* O-ring tooling is optional.

Grid digitizing a block face to create the profile

CNC Block Lightening

Automatically remove excess material. The probe copies the shape of the block and creates a tool path that perfectly matches the contour of every detail.

“Using the DP-7 probe and Centroid digitizing cycles you can digitize specific features on a block that can be used to create a block lightening program.”


A specified amount of material can be removed.

Threadmilling of Freeze Plug hole.

Threadmilling freeze plug holes. (and other threads)

CENTROID threadmilling canned cycle provides easy fill in the blank programming. Threadmill the threads on blocks and heads. Never break a tap again!

When should a thread mill be selected over taps?

In general, for production threading up to 3/8", taps are more efficient. However, if producing a wide variety of parts, threads, and materials on the same machine, threads mill are far more versatile. They will produce right or left hand, internal or external threads, single or multiple lead from #2-56 with the same mill. Materials range from soft, non-ferrous alloys to heat-treated steels, or tough alloys such inconel and titanium, where tap breakage often occurs. Pipe threads are easily produced without leaving the normal “stop lines” and creating the troublesome stringy chips normally produced by taps. In addition, thread mills can produce full threads to within one pitch of the bottom of a blind hole.


Engrave letters, numbers, and logos.

CNC Engine Block Engraving

Quickly and easily engrave letters, numbers, symbols and logos. Deck heights, phone numbers, serial numbers, web addresses and company logos are now simple to automatically add onto every block you blueprint.

Stroker Clearance Machining

Stroker crank clearance machining.

Easily machine clearance paths in the block for big stroker cranks.

Cylinder Head Surfacing.

Cylinder Head surfacing! Acheive incredible Ra's.

Switch from Block work to Cylinder head surfacing in minutes, surface heads better and faster than a dedicated surfacing machine. Super Low Ra's will make your customers happy.




See the A560 in action!

5 Axis CNC Porting Video with tool changer

A560 CNC Cylinder Head and Block Machining center video.

See a big block chevy brodix head being ported and a sbc block being blueprinted and machined. The A560 Articulating Head Machine saves machining time and produces the best combustion chamber to manifold side transitions while at the same time producing the super low RA's on Block work. No fixture to swap-out to switch from cylinder heads to blocks! See how it all works.

Related videos:

PRI '09 Video

5 axis CNC Supercharger porting and machining, Jeff Smith, Late Model Throttle at PRI

Jeff Smith, Owner of Late Model Throttle talks about his A560 and his working relationship with Centroid at the PRI Tradeshow 2019.


State-of-the-art CNC Control

Made in the USA, the CENTROID M400 comes from a long history of tough industrial CNC controls. The CENTROID CNC is known for its user friendly operator interface combined with powerful features which produce superior cuts and finishes with less work on your part. Simple setup menus guide you thru the process. Advanced CNC features like: Windows 10 OS, SSD (Solid State Drive), Internet ready with remote access/support, Touch Screen, Unlimited file size with accell/decell look ahead provides smooth continuous tool motion. USB 2.0 ports and Ethernet for easy file transfer. Stop and restart at any point. Program tool path graphics. The CENTROID is a fast PC based CNC with updatable software so you are always using the latest technology. Operator friendly floor stand is convenient and comfortable to use.

Mastercam CAD/CAM Software

Mastercam CAD/CAM Software with PORT EXPERT!

The latest Multi Axis Mastercam software with a one year maintenance agreement is included with every machine. We teach you how to use Mastercam to create perfect CNC ports every time. This powerful package opens your digitizing data and creates the program to port the head, also allows you to tweak hand ported designs if necessary. The CENTROID/Mastercam CNC porting system has significant advantages both in cost and effectiveness while at the same time is the easiest to learn and the best supported porting package on the market.

Mastercam Port Expert

All the software needed to digitize and recreate Cylinder Head Intake and Exhaust ports along with Combustion chambers is included with every CENTROID CNC porting machine. There is no extra software or equipment to buy. Our renowned one-on-one CNC porting training ensures you will be CNC porting heads faster than any other system on the market. The CENTROID system also enables you to locate key features of the head such as water jackets, bolt holes, and push rod holes to incorporate them right into the porting model so you are confident before starting to machine a head that there is no interference points with your new design. The digitizing probe picks up the data points automatically and added to the computer model so you can graphically see the ports, combustion chambers and other features of the head on the computer screen.

CNC Block software Anyone can learn how to run CENTROID's CNC Block software in an afternoon. CENTROID has simplified the block blueprinting and machining process. Common block operations have been preprogrammed for you. There is even a built in data base of factory blueprint data for common blocks. The digitizing probe automatically locates all the key dimensions of a block, the data is displayed on the screen and is compared to the blue print info. The operator can choose to machine on blueprint or at any other location. Simple fill in the blank menus with an easy to understand format will have you CNC'ing blocks in no time. You can base a new program on an existing program, so you don't always have to start from scratch, all your programs can be saved and backed up to a USB stick, LAN or back up hard drive. No out of house programming is required, you are in control of your own designs.
CENTROID CNC Training is comprehensive When you go with a CENTROID, you'll receive comprehensive one-on-one machine and control training from our dedicated staff. We been teaching shops the tricks of the CNC trade now for 30 years. Let us show you how a CENTROID CNC machines tool can increase both an engines horsepower and your bottom line.
    • Every training custom tailored to each customer, no cookie-cutter trainings
    • Personalized service and support
    • Direct support phone numbers, no automated systems or in between people
    • Remote troubleshooting, programming questions, and diagnostics right on the control
    • One support number to call for every single component in the system
    • Support available outside of 9-5 M-F
    • Expedited parts & accessories service, with in house machine shop, keeps you up and running.
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