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CNC machined automotive part Precision automotive component
On-Demand CNC Platform

CNC Machined
Engine Components

We machine automotive engine components for US teams. Cylinder heads, connecting rods, valve bodies, and oil pump gears from aluminum, cast iron, and 4340 steel.

Upload your STEP file for immediate pricing and DFM feedback.

5-Axis
Complex geometry
capability
RivCut capability
±0.001"
Precision tolerances
CMM verified
RivCut standard
PPAP
Documentation
available
Quality system
3-Day
Rush prototypes
available
Simple geometries
IATF 16949
PPAP
ISO 9001

Engine Components CNC Machining
Across the US

Click any highlighted state to find city-specific engine components machining pages.

Cities available Coming soon

Automotive Engine Parts for US Teams

Cylinder heads, connecting rods, valve bodies, and oil pump gears machined to print.

Cylinder Heads

Aluminum cylinder heads from billet or casting. Precise combustion chambers, valve seat bores, and port geometries.

Al 356 & 6061

Connecting Rods

4340 steel connecting rods with precise big-end and small-end bore dimensions and weight-matched sets.

4340 steel

Valve Bodies

Aluminum and steel hydraulic valve bodies with precise bore and port machining for engine oil control.

Precise bores

Oil Pump Gears

Steel oil pump gear sets with precise tooth profiles, backlash, and bore dimensions.

Gear accuracy

Engine Blocks

Aluminum engine blocks with precise cylinder bore, bearing journal, and oil gallery machining.

Al billet

Intake Manifolds

Aluminum intake manifolds with precise port geometry and gasket surface flatness.

Ra 63 gasket
Materials
Multiple alloys
Tolerances
Down to ±0.001"
Finishes
Anodize, Passivation, Hard Coat
Certifications
Material certs & inspection

Engine Components CNC Machining
by City

We ship precision engine components to teams in 110 cities across the US.

San Jose

California

Chicago

Illinois

Los Angeles

California

Houston

Texas

Dallas

Texas

Detroit

Michigan

Minneapolis

Minnesota

Seattle

Washington

Boston

Massachusetts

Philadelphia

Pennsylvania

Phoenix

Arizona

Denver

Colorado

Cleveland

Ohio

Cincinnati

Ohio

Pittsburgh

Pennsylvania

St. Louis

Missouri

Nashville

Tennessee

Austin

Texas

Raleigh

North Carolina

Charlotte

North Carolina

Atlanta

Georgia

Portland

Oregon

Salt Lake City

Utah

Milwaukee

Wisconsin

Indianapolis

Indiana

Columbus

Ohio

Louisville

Kentucky

Fort Worth

Texas

Buffalo

New York

Hartford

Connecticut

Wichita

Kansas

Tucson

Arizona

Huntsville

Alabama

San Antonio

Texas

Jacksonville

Florida

Kansas City

Missouri

Dayton

Ohio

Rochester

New York

Albany

New York

Sacramento

California

Albuquerque

New Mexico

Tampa

Florida

Orlando

Florida

Miami

Florida

Baltimore

Maryland

San Diego

California

San Francisco

California

Las Vegas

Nevada

Reno

Nevada

Boise

Idaho

Rockford

Illinois

Peoria

Illinois

Grand Rapids

Michigan

Ann Arbor

Michigan

Lansing

Michigan

Green Bay

Wisconsin

Madison

Wisconsin

Omaha

Nebraska

Des Moines

Iowa

Cedar Rapids

Iowa

Charleston

South Carolina

Greenville

South Carolina

Memphis

Tennessee

Birmingham

Alabama

Richmond

Virginia

Virginia Beach

Virginia

Colorado Springs

Colorado

Spokane

Washington

El Paso

Texas

Oklahoma City

Oklahoma

Tulsa

Oklahoma

Baton Rouge

Louisiana

New Orleans

Louisiana

New York

New York

Akron

Ohio

Toledo

Ohio

Greensboro

North Carolina

Winston-Salem

North Carolina

Durham

North Carolina

Providence

Rhode Island

Springfield

Massachusetts

Worcester

Massachusetts

Allentown

Pennsylvania

Harrisburg

Pennsylvania

Lancaster

Pennsylvania

Scranton

Pennsylvania

Erie

Pennsylvania

Flint

Michigan

Kalamazoo

Michigan

Syracuse

New York

Riverside

California

New Haven

Connecticut

Bridgeport

Connecticut

Fayetteville

Arkansas

Knoxville

Tennessee

Chattanooga

Tennessee

Lexington

Kentucky

Youngstown

Ohio

Trenton

New Jersey

Newark

New Jersey

Melbourne

Florida

Fremont

California

Newport News

Virginia

Marietta

Georgia

Everett

Washington

Palmdale

California

Chandler

Arizona

Sunnyvale

California

Torrance

California

Cape Canaveral

Florida

From CAD File to Shipped Parts

Three steps. No runaround. You always know where your project stands.

Step 1

Upload Your CAD File

Send your STEP or IGES file. Select material, quantity, and finish. We review for manufacturability and respond fast.

Step 2

We Machine & Inspect

Your parts run on our CNC mills and lathes. Every order gets CMM inspection. We verify every critical dimension before shipping.

Step 3

Ship with Full Documentation

Parts ship with dimensional inspection reports, material certs, and full traceability. Everything your quality team needs.

Upload CAD for Instant Quote

Common Questions About
Engine Components Machining

We machine aluminum 6061 and 356, 4340 steel, ductile iron, and powder metal for automotive engine applications.
We hold ±0.001" on general features and ±0.0001" on critical cylinder bores and bearing journals using honing and grinding operations.
Most engine component prototypes ship in 5 to 10 business days. Complex castings with multiple surfaces may take longer.
Yes. We machine aluminum cylinder heads from billet or casting with precise combustion chambers, port geometries, and valve seat bores.
Upload your STEP or IGES at rivcut.com/quote or email hello@rivcut.com.

Get Your Engine Components
Parts Right

Send us your files. We'll review them for free and get you an honest quote within 24 hours. No pressure. No games.

No minimums · Prototypes welcome · NDA ready · Ships anywhere in the US