Aftermarket head studs are vital for high-performance engines with high compression or turbochargers, both of which experience extremely high internal cylinder pressures. ARP studs are a popular ...

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 ...

When installing head bolts should you use thread lock or lubricant. Mechanics explain the differences and why the choice matters. #EngineRepair #Mechanic ...

Many don't give a second thought to cylinder head bolts once they're taken out of an engine, thinking of them as just another set of fasteners. But they have a much bigger role, maintaining a ...

After purchasing a brand-spanking-new Harley, it's time to start doing what we do best and hot rod that sucker. Most of our Harley tech stories up to this point have concentrated on bolt-on parts for ...