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Engine Porting Kit is rated 4.8 out of 5 by 26.
Rated 5 out of 5 by from Porting kit I bought a month ago, I'm very satisfied and good customers service
Date published: 2018-08-13
Rated 5 out of 5 by from Superb Product I ordered the kit to clean up the runners and port match my aluminum heads. It took awhile to arrive so I became impatient and went to Harbor Freight for some imported product. The sanding rolls came apart immediately. I was happy when my Eastwood kit came in. The sanding rolls last and last. The long and short mandrel are a necessity. Great product.
Date published: 2018-07-25
Rated 5 out of 5 by from All I should really need Have not had a chance to use it yet, But chomping at the bit! But quite confident it will do all I ask of it. Do you offer some type of container to hold all of the components. I’ll send photo’s of my finished project.
Date published: 2018-02-20
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Is this kit compatible with a dremel 200 series?

Asked by: mustang_man
Yes it is compatible
Answered by: SeanA
Date published: 2018-03-27

can engine porting kit 46056 be used with a 3/8 electric drill

Asked by: walter 66
Yes, you can use a 3/8" drill with this kit.
Answered by: MikeL
Date published: 2014-11-19
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Engine Porting Kit

Engine Porting Kit

Item #46056 Brand: Eastwood

Helps your engine "breathe" easier,
to generate more HP and torque
Quantity: close

In stock

Only $36.99


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Engine Porting Kit can help your engine generate more power When serious engine builders "blueprint" an engine, they'll "port" or smooth-off rough head castings around the intake and exhaust ports for improved, smoother air flow. The engine can then "breathe" easier, resulting in greater power and efficiency.
  • Increase horse power and torque on any engine
  • Industrial Aluminum Oxide sanding rolls, designed for both cast iron and aluminum cyl. heads
  • Highest quality components on the market today
  • Detailed inst. allow you to port both heads in an evening
  • Developed to work with air or electric 1/4" collet die grinders
  • Lowest cost "complete" professional level kit available
  • Click the video below to see just how easy cylinder head porting is
  • A must for any performance engine build

More info...
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About Engine Porting Kit

Internal combustion engines are sophisticated air pumps that pull in an air/fuel mixture, compress it, ignite it, react to the ignition and expel the exhaust fumes. The better an engine pumps air, the more efficiently it will operate. This is one reason why we've seen a turn to multi-valve engines in recent years. More valves means more air moving through the engine. More air means greater engine efficiency – both more power and better fuel economy.

When you "port" an engine, you remove imperfections and restrictions between the combustion chamber and intake manifold and, therefore, increase air flow. This is done by 1) "smoothing" (or, grinding) the passages in the intake manifold so that they are the same size as the gasket and cylinder head, and 2) removing "rough cast" or "flash" imperfections in the cylinder heads and exhaust manifolds.

For best results use a high-speed grinder. To remove more aggressively, use carbide burrs.


Forty 80-grit Abrasive Rolls (20 tapered and 20 cylindrical)
4 Mandrels (2 each: 4" and 6" lengths)


4 pc. Carbide Burr Set
Carbide Burr SF-5 Tree Shaped
Grinders Grease


Download product instructions PDF

Cylinder Head Porting Kit - How To Operate & Safety Instructions

Click here for product SDS information

Attention California Residents - Proposition 65

Proposition 65 Warning WARNING - Cancer and Reproductive Harm -

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