Your brand · Our CNC

Private Label CNC porting.

Your heads, cut on our CNC and checked on our flow bench. Private label, port development, digitizing and programming.

For manufacturers · engine builders · shops

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How a job runs

Send the head. Get it back flow tested and verified.

One casting or a recurring run — we quote it straight and machine it here.

01

Tell us the job

The casting, the goal, how many and when.

02

We quote it

Priced by head, spec and volume. No guessing.

03

Cut, checked, shipped

Machined on our CNC, flow-checked, back with its numbers.

What we do

All the CNC work, under one roof.

Open any one for the detail.

01

Private label porting

Ported heads that go out under your brand.

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  • CNC ported to a spec we agree on up front
  • Same port, run after run
  • Flow checked against supplied master port
  • Your brand and part numbers — small batches to recurring runs
CNC-cut LS7 intake runner during port development at Carma Performance02

Port development

A new port built for your head and your goal.

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  • Designed around a flow or power target
  • NA, boosted, big cam, street or race
  • Iterated on our flow bench until it hits the number
03

Digitizing

A hand port, turned into a CNC program.

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  • Digitize your port design
  • Reproduce it on CNC instead of by hand
  • Flow-checked against the original
Digitized master port model sliced for CNC porting programs04

CNC programming

Porting programs written for the job.

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  • Programs for new castings and revised ports
  • Built from a port we developed or digitized
  • Scoped per job — call and we'll talk it through
Finished CNC ported bowl and valve guide05

Porting to your spec

Your port, run on our machine.

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  • Run to the specification you give us
  • Extra capacity without the machine
  • Flow-checked so you know what shipped
392 HEMI combustion chamber with new valves after a valve job06

Valve jobs & head service

Finished heads, ready to bolt on.

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  • Multi-angle valve jobs
  • Stainless valves, Inconel exhaust options
  • Machine work while the heads are apart — machine shop

Already on the machine

Heads we've flow tested and verified.

Tap one for its flow data.

CNC ported LS3 intake port
LS3
+67 cfm peak gain
LS7 cylinder heads on the CNC fixture
LS7
+41 cfm peak gain
CNC ported LT1 intake port
LT1
+41 cfm peak gain
CNC ported Hellcat combustion chamber
6.2 Hellcat
+30 cfm peak gain

Also on the menu: 6-bolt LSXLT4LS1LS26.4 3926.1 SRT85.7 HEMICoyoteViper V10

Common questions.

Can the heads go out under our brand?

Yes — that's private label. Tell us what you need for branding and part numbers when you ask for a quote.

Is there a minimum order?

We quote by volume. Tell us the quantity and how often, and we'll tell you straight what makes sense.

Can you copy a port we already have?

Yes. Send the head in, we digitize the port so it can be cut on CNC, then flow-check it against the original.

How is pricing worked out?

Per job — the head, the port spec, the volume, and whether valve work is included. We'll put it in writing.

Do you work with shops outside Tennessee?

Yes. Heads ship in from anywhere and go back flow tested and verified.

Let's talk volume

Send us the head.

The casting, the goal and the quantity. We'll come back with a straight answer.

1035 3rd Ave S, Nashville, TN 37210 · Mon–Fri 8 to 5