Dodge Cummins 12 Valve Diesel Performance
Cummins 12 Valve Diesel Performance Engine Parts
Head Studs
ATS head studs are a must for any Cummins engine producing turbo boost pressures above 50 PSI. For moderate performance and towing applications, ATS 12 mm Head Studs are a must.
These head studs require no machining, drilling or tapping; the perfect "drop-in" fit for your Cummins Diesel.
Performance Grind Cam Shaft
The Performance Grind Cam Shaft is ideal for performance applications. This Cam Shaft will reduce exhaust gas temperatures, and achieves faster turbo spool up, as well as improving the over all drive ability of the truck.
The Complete Performance Head
Our 5.9 cylinder head is set up for the performance enthusiast in mind. We have three different options available to meet the demands of you and your vehicle.
Head studs
When upgrading your turbo, air pressure in the intake system typically increases and once this increase reaches 45-50 psi the factory head bolts start to stretch causing the head to "lift". When the head lifts too much the head gasket will fail and this failure will cost you.
Head studs are the ideal fix for those daily drivers trying to get more out of their truck O-rings. The next step up from head studs is O-ringing the engines cylinder head.
Once we receive your cylinder head we perform 2 machining processes on it:
- Head surfacing to ensure the surface is flat
- An O-Ring groove is machined around each combustion chamber
With the heads installed the O-ring squeezes against a stock head gasket to hold the pressure in. An engine equipped with O-rings can contain boost pressures up to 70psi.Fire-rings For those who want the mother of all pressure containment then our fire-rings are for you. The machining process for the fire-rings is similar to that of the o-rings. The difference is how they seal. The fire-rings utilize a head gasket that is laser-cut to fit around them. The rings seal against the deck of the block instead of the gasket. These fire-rings and handle everything from your average tow rigs to a vicious sled puller.
