Competition Machining Services building and sign in New Milford, CT

Full service
engine shop

Competition-grade engine machining, purpose-built race engines and full dyno services under one roof. Every complete build leaves with its power curve.

5.0 on Google · Call 203-748-7356
New Milford, CT · 571 Danbury Rd
30+ Years in competition machining
10 Machining services in-house
100% Of complete builds dyno-tested
5.0 Google rating

Services

Full-service precision machining for performance and competition engines. Nothing gets sent out. Block decking, boring, honing and balancing all happen in our shop.

Engine builds

Purpose-built race and performance engines, assembled to spec.

Engine dyno tuning

Tuned on our Stuska dyno, with power curves and torque figures.

Block decking

Flat, true deck surfaces for a proper head seal.

Pressure testing

Blocks and heads checked for cracks and leaks before work starts.

Line honing

Main bores aligned and sized for correct crank clearance.

Milling & honing

Surface milling and finish honing to race-level tolerances.

Flywheel milling

Flywheels resurfaced for clean clutch engagement.

Valve jobs

Seats and valves cut for sealing and flow.

Cylinder bore & hone

Bores cut and honed to size for your pistons and rings.

Balancing

Rotating assemblies balanced for smooth, durable power.

Precision grinding a component in the shop
Twin Weber four-cylinder race engine installed in a freshly painted engine bay
Cylinder head being machined
Dual-carb Ford FE engine built in the shop
Small-block Chevy with Edelbrock intake, finished in the shop
Ford flathead V8 with Offenhauser heads and intake

Competition-grade precision

Dimensions held to tolerance, at race-level standards.

All in-house

Decking, boring, honing and balancing in our own shop.

Straight to the point

Honest assessments and real quotes, no upselling.

Dyno data, not guesses

Complete builds come with power curves, torque figures and break-in data.

Real shop experience

Decades of work, from a team with track experience.

Local and accessible

Close to the Northeast racing community, with a fast response.

Our Process

  1. 1

    Consultation

    Call or email with your engine specs and goals. Get an upfront quote.

  2. 2

    Teardown & inspect

    Every component inspected and cleaned before machining begins.

  3. 3

    Machine & build

    All machining in-house; builds assembled to spec.

  4. 4

    Test & deliver

    Complete builds dyno-tested before delivery. Pickup or delivery.

How our two shops
work together

Don’t want to deal with pulling the engine? You don’t have to. Our motorsports shop takes the engine and transmission out, our engine shop builds it, and it goes back into your car. One team from start to finish.We pull the engine, build it in our shop and put it back in. One team, start to finish.

Engine shop · Competition Machining Complete teardown, any design work, machining and the full build, then final break-in on the dyno.
Race shop · Corporate Motorsports Pulls the engine and transmission, refurbishes the engine bay while it’s out, and puts the finished engine back in.
Watch the video

Engines for sale

Shelby 427 Aluminum Ford FE dual carburetor engine, studio shot Available

Shelby 427 Aluminum

Ford FE · 510 CI stroker · dual carb

626 HP@ 5,800 rpm
611 lb-ft@ 4,700 rpm

Dyno tested Jan 2026 · Stuska Dynamometers

Blair Patrick aluminum heads · Trick Flow intake

$34,000 Call to buy
Shelby 427 Aluminum Ford FE single carburetor engine, studio shot Available

Shelby 427 Aluminum

Ford FE · 482 CI stroker · single carb

588 HP@ 5,700 rpm
604 lb-ft@ 4,300 rpm

Dyno tested Dec 2025 · Stuska Dynamometers

Trick Flow heads · Shelby 427 Aluminum block

$30,000 Call to buy
Custom build

Build to order

Your specs, our shop

Yourpower target
Yourtorque target

Every build pressure tested and dyno-tuned before it leaves

You supply the goals; we handle the full in-house build and dyno tuning.

Jeff Roell celebrating his first race win with the Competition Machining team
First outing · First win Jeff Roell's Mustang His naturally aspirated engine, built in our shop, won on its very first drag racing outing.
5.0Google Read our reviews Leave a review

See the work for yourself.

Real builds and real customers, posted as they happen on our Instagram and Facebook.

Follow @cms.motorsports
View this reel on Instagram
View this reel on Instagram
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Shop the parts counter

Inside the Competition Machining Services parts storefront: ARP and Moroso displays, oils, filters and the parts counter
Our storefront · 571 Danbury Rd
NGK spark plug and box

NGK

Spark plugs

NGK racing and performance plugs.

Motul 300V Competition 5W-40 racing oil

Motul

Oil & fluids

Break-in oil, high-zinc racing oil, assembly lube, gear oil and coolant additive.

Wix oil filters and K&N air filters

Wix + K&N

Filters

Common Wix, K&N and racing oil filters.

Fragola AN hose end fittings

Fragola

AN fittings

-4 to -16 AN straights, 45°, 90°, unions, reducers and caps/plugs.

Holley carburetor jets

Holley

Jets

Jets, power valves, accelerator-pump diaphragms, gaskets and needle/seats.

Header studs, bolts, DZUS fasteners, zip ties and a fuel jug

Race day

Essentials

Header bolts, collector hardware, safety wire, DZUS fasteners, heat sleeve, zip ties and fuel.

Open Mon–Fri, 8am–4:30pm.

Call for a quote.

Tell us the engine and the goal. You get an honest assessment and a real number, with no upselling.

Call the shop 203-748-7356 Tap to call

Hours · Mon–Fri, 8am–4:30pmEmail · admin@cm-srvcs.com

Frequently asked questions
Do I have to pull the engine myself?

No. Our motorsports shop removes and reinstalls it, and can refurbish the engine bay while it’s out.

Can I visit?

Yes, visitors are welcome at the storefront. Dyno viewing by appointment.

Do you deliver?

Store pickup and delivery are both available for all engines.

When can I call?

Monday to Friday, 8am to 4:30pm.

Owner Joe Viola, right, with Don Clady of CT Cruise News at the workbench
Meet the owner Joe Viola Pictured right, with Don Clady of CT Cruise News
Competition Machining Services building and sign at 571 Danbury Rd, New Milford
Look for the sign at 571

Find us on Google

571 Danbury Rd, New Milford, CT 06776 · Mon–Fri 8am–4:30pm

5.0 on Google
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