- #SUMMIT RACING HEAD PORTING KIT HOW TO#
- #SUMMIT RACING HEAD PORTING KIT FULL SIZE#
- #SUMMIT RACING HEAD PORTING KIT PLUS#
- #SUMMIT RACING HEAD PORTING KIT SERIES#
Each Brodix WD Series cylinder head is sold as a bare casting.īrodix makes heads for the four different Duramax engine generations found in the 2001-15 Chevy/GMC Silverado/Sierra 2500 HD/3500:īRO-4000004 2001-04 6.6L Duramax LB7, moved centerlineīRO-4000005 2005-06 6.6L Duramax LLY, moved centerlineīRO-4000006 2006-10 6.6L Duramax LBZ/LMM, moved centerlineīRO-4000007 2011-15 6. For even higher performance gains, Brodix offers heads with relocated valve centerlines to allow for larger valves. The heads are a direct bolt on to factory Duramax engine blocks and use all standard components. Each casting incorporates LB7 injector cups. Using a unique port design, these all-new cylinder heads flow more air than stock, and deliver more horsepower.īrodix WD Series cylinder heads are made from A-356 virgin aluminum.
#SUMMIT RACING HEAD PORTING KIT FULL SIZE#
Significant performance gains for Chevy and GMC full size diesel trucks.īrodix, a name long known to hotrodders and racers, just turned its attention to the 6.6L Duramax diesel. These great new heads feature a unique port design for more airflow and horsepower. They are now proud to add the brand new Brodix WD Series Cylinder Heads for 2001-15 Chevy/GMC Silverado/Sierra 2500 HD/3500 with Duramax diesel power. Summit Racing is constantly in search of new products to add to their expanding catalog for performance enthusiasts. Typical tensile overload or stretch failure of a fastener exposed to too much preload, and a fastener failure due to torsional (twisting) shearing. Instead, a nut is then used on top of the stud to apply the twisting action and clamping force across the entire body of the stud. This twisting action has been known to skew torque values.Īs noted previously, studs are generally installed directly into the block finger tight prior to the head and gasket being set in place, eliminating the twisting force applied to the body itself during torquing. When a cylinder head bolt is threaded into a block, there is of course the clamping force produced by the bolt threads as it is tightened, but there is also a force being applied to the bolt in a twisting action known as torsional force. These two forces are measured as torsional force (twisting) and tensile force (pull/stretch).
One of the most important aspects when it comes to cylinder head fasteners is material stretch during installation, with two primary types of force being applied, but in vastly different ways depending on the type of fastener chosen. This allows for installation in areas that would otherwise obstruct the installation path of the cylinder head if using studs. So components such as brake master cylinders, brake boosters, wheel tubs, and strut bars can all become potential obstacles.Ĭylinder head bolts on the other hand are installed after the gasket and cylinder head have been set in place - making it slightly more difficult to keep each piece properly aligned. The drawback is that studs are generally more expensive and require enough surrounding space to allow the cylinder head to be installed from directly overhead. This allows for guaranteed alignment between the cylinder head, gasket, and block, while also allowing for faster service times and more accurate values when retorquing. Simply put, head studs are installed into the block prior to the cylinder head being installed. But which one should you choose? In the end it all comes down to what the specific application is being used for and how much working room you have available in the engine bay. When you begin your search for cylinder head fasteners, you will usually find both head studs and head bolts offered for your application. The engineers behind these fastener designs at ARP must take into account the material selection, tensile strength, torsional strength, shear resistance and cyclic fatigue of each style of fastener to guarantee reliability in even the highest horsepower engines.
#SUMMIT RACING HEAD PORTING KIT HOW TO#
Summit Racing gives viewers the inside scoop on the difference between ARP cylinder head fasteners, which would be better for your engine, and how to properly install your chosen fasteners.
#SUMMIT RACING HEAD PORTING KIT PLUS#
This, plus the swirl port heads is why they really have good torque but run out of. Those fasteners must be able to handle the extreme abuse created within each combustion chamber as the fuel mixture burns and the pressure rapidly expands underneath, with events happening thousands of times per minute. C4 engine tune-up kits include new Delco air filter, fuel filter. The responsibility given to whatever cylinder head fasteners you choose to clamp your head to the surface of the block is truly a matter of mechanical life or death.
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