A certain amount of leeway is built into almost every factory part. Take Project Rust Bucket's turbocharger for example, which is now producing 37 pounds of boost instead of less than 20. Or the ...

Cummins has been at the forefront of the diesel engine market for more than 100 years. At this point, an argument could be made that there are few manufacturers whose products are as well respected ...

In this video I am going to pull the head off my 5.9 cummins. This is a 12 valve cummins, which means its an all mechanical engine, making it a perfect candidate for an engine swap into my 1997 ford!

1) What is head porting and polishing and how does it work?Porting involves shaping and/or polishing the intake port openings, the inside of the ports, the exhaust ports, the bowl area below the valve ...

Cylinder head porting is an advanced area of car tuning, so to help you get around what it all means, we take a closer look at the sure-fire way to improve an engine’s performance potential. You may ...