Flanges

Our flanges are cut with a CNC HD (High Definition) Plasma cutter out of 3/8” Pickled and Oiled (P&O) steel. P&O material is hot rolled steel that has been dipped in acid to remove the mill scale and then coated lightly with oil. The end result is less work to clean off the mill scale as needed with hot rolled mild steel. The ports are designed to be used with variety of exhaust tubing sizes. These flanges are designed in CAD and are test fit to make sure proper fitment is achieved. Our flange products include exhaust/header flanges, intake flanges, one-piece exhaust/intake flanges and turbo flanges.

Exhaust/Header Flanges

We have over 40 options to choose from in the following brands: Buick, Cadillac, Chevrolet, Chrysler, Desoto, Dodge, Ford, Mopar, Oldsmobile and Pontiac.
Here’s a look at our exhaust flanges that we have in stock:

  • Buick: Buick Nailhead (Baby) 264-322, Buick Nailhead 364-425, Buick Straight 8 248-263, Buick Straight 8 320
  • Cadillac: Cadillac 331 (Early), Cadillac 331 (Late), Cadillac 365-429, Cadillac Big Block 425-500
  • Chevrolet: Chevrolet 348-409, Chevrolet 4.3L V6, Chevrolet Big Block 396-454 (2.25” Round Port), Chevrolet Big Block 396-454, Chevrolet Early 6 cyl 216-261, Chevrolet Late 6 cyl 194-292, Chevrolet LS1-LS6, Chevrolet Small Block 265-400 (Rectangle Port)
  • Chrysler: Chrysler Hemi 331-392, Chrysler Poly 301-354
  • Desoto: Desoto Hemi 276-345
  • Dodge: Dodge A Series 277-326, Dodge Hemi 241-325
  • Ford: Ford 351C, 351M, 400, Ford Big Block 429-460, Ford FE 332-390, Ford Flathead 221-239, Ford Flathead V8-60, Ford Model A,B, Ford Small Block 221-351W, Ford Y-Block 239-312
  • Mopar: Mopar Big Block 350-440, Mopar Slant 6 170-225, Mopar Small Block 318-360, Mopar Small Block W-2
  • Oldsmobile: Oldsmobile 238, Oldsmobile 303, Oldsmobile 324-374 (Split Port), Oldsmobile 324-374, Oldsmobile Big Block 350-455
  • Pontiac: Pontiac 326-455

Intake Flanges

We have 13 flanges for you to choose from in the following brands: Buick, Cadillac, Chevrolet, Chrysler, Desoto, Dodge, Ford, Mopar, Oldsmobile and Pontiac.
Here’s a look at our intake flanges:

  • Buick: Buick Nailhead (Baby) 264-322, Buick Nailhead 364-425, Buick Straight 8 248-263, Buick Straight 8 320
  • Cadillac: Cadillac 331-429, Cadillac Big Block 425-500
  • Chevrolet: Chevrolet Early 6 cyl 216-261
  • Chrysler: Chrysler Hemi 331-392
  • Desoto: Desoto Hemi 276-345
  • Dodge: Dodge Hemi 241-325
  • Ford: Ford Model A, B
  • Mopar: Mopar Slant 6 170-225
  • Studebaker: Studebaker 224-289

One-Piece Exhaust/Intake Flanges

We carry two of the one-piece exhaust/intake flanges. They are:

  • Chevrolet: Chevrolet Early 6 cyl 216-261
  • Ford: Ford Model A, B

Turbo Flanges

These are cut from 1/2″ steel using a HD (High Definition) plasma cutter with the bolt holes drilled undersize to allow for thread size as desired. We carry three options of turbo flange. They are:

  • T3/T4 turbo flange: Comes with bolt dimensions of 3.375″ x 1.75″.
  • T4 turbo flange: Comes with bolt dimensions of 3.25″ x 2.75″.
  • T6 turbo flange: Comes with bolt dimensions of 2.75″ x 4.45″.

What is an exhaust flange?

An exhaust flange is a piece of metal that bolts directly to the engine and allows for custom headers to be fabricated. They still require an exhaust gasket between the header flange and the engine/head. They are generally built to match the port shape and size for each application along with the bolt hole spacing and pattern to allow for a good fit and seal against the engine. All of our flanges are built for each specific application as listed in the product description and we do our best to make them as universal as possible, but still fit properly. This is a great solution for you to build a set of custom headers to fit the required space in the engine bay to avoid items such as steering, frame rails, engine mounts, etc. We have the most extensive line of exhaust flanges available from a single company.

What is a turbo flange?

A turbo flange is piece of metal that is designed specifically to attach a turbocharger to your exhaust manifold or header. They can be made from mild steel or stainless steel. These flanges allow for you to build a custom turbo setup for virtually any engine when combined with our header flanges and mandrel bends. Turbos are being installed in hot rods and cars that were never intended to have one, so a custom system must be fabricated. The turbo flange is a key component to help you in adding more horsepower.

Our product line is driven by our passion to create unique parts for customizing nostalgic rides, hot rods, customs and we welcome customer requests. Our goal is to support do-it-yourself hot rodders and the aftermarket automotive industry with quality products and services that enhance your building experience and save you time and money.

Check out these other top selling products:

  • Bomber Style Seats: Ride in style and comfort with these seats that are perfect for the hot rod that actually hits the road.
  • Cold-Rolled Steel Mandrel Bends: These mandrel bends help you with building custom headers, intakes and exhaust systems for your project.
  • Exhaust Kits & Accessories: Take a look at your exhaust kit options and accessories for more complete kit options and variations.
  • Full-Welded Intakes: We have custom fabricated multi-carburetor intakes for Buick, Chrysler, Desoto and Dodge Hemi.
  • Straight Lake Header Kits: Build your own lake headers using our kits including all the required parts in one package. It’s the easiest style of lake header to fabricate for the DIY builder.
  • Swept Lake Header Kits: Allows for all primary tubes to “sweep” back into the megaphone for a more stylish and better flowing lake style header.

Services we currently offer in addition to the products listed on our website include custom part engineering, design and manufacturing, fabrication and TIG/MIG welding, hot rod and custom car building and small production runs for your own company’s product line. We want to keep traditional hot rodding alive. See you on the road!