Norcal Diesel Performance - Cylinder Head Parts

Fleece Performance Billet Rocker Arm Bridges for 1998.5-2018 24v 5.9L/6.7L Cummins (set of 12)

Control the valvetrain in your 1998.5-2018 Dodge 5.9L and 6.7L Cummins with the XDP 24V Performance Valve Springs and Retainer Kit XD313. Valve springs are an essential upgrade that are often overlooked in many performance builds.

The factory valve springs in your engine are not intended to handle the increased engine RPM and elevated boost levels that are typical in modified applications. Even common upgrades like an aftermarket turbocharger and performance tuning can cause valve float that may result in serious engine damage. In addition, your valves can be blown open by boost and drive pressure causing reversion.

Reversion is when exhaust gasses flow backwards and enter the cylinder on the intake stroke, hurting your engine performance. This is why upgraded valve springs are a must-have on modified engines! The XDP XD313 Valve Springs feature a conical design that provides more valve control than a standard straight spring. The conical shape allows for a smaller and lighter spring retainer that is also stronger due to size reduction. Unlike other valve springs on the market, the XD313 Valve Spring Kit can be used on a wide range of trucks, from stock all the way up to competition builds making 2,000 HP.

This makes them a perfect choice for a one-and-done upgrade that lets you modify your engine to support more power down the road. Each spring is computer load mapped and then matched within 1 lb of seat pressure followed by a stress relief process to ensure quality and long-term reliability. Each set comes complete with springs, locks, retainers, and is backed by XDP's 1 year unlimited mileage warranty.
Features:

• 100 Lb. Seat Pressure
• Conical Spring Design
• Performance Valve Spring Kit
• Supports Up To 2,000 Horsepower
• Essential For Elevated Boost Levels
• Complete Set (Springs, Locks and Retainers)

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.

Change the valve springs in your 1998.5-2019 Dodge 5.9L and 6.7L Cummins with the XDP 24V Valve Spring Compressor Tool XD311. A must have in the tool box of any enthusiast, or professional technician. We all know using the right tools can cut hours off a job saving you time, money, and frustration.

The XD311 Valve Spring Compressor Tool Features a billet aluminum construction and a low-profile design giving you access to all cylinders in your 24 valve Cummins.
Features:

• Billet Aluminum Construction
• Valve Spring Compressor
• Low-Profile Design

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.

Increase the reliability and performance of the valvetrain in your 1998.5-2018 Dodge 5.9L and 6.7L Cummins with the XDP Pushrods 3/8 inch Street Performance XD204. In modified Cummins applications, the factory Pushrods are not adequate to handle the stress from increased cylinder pressures, valve spring pressures and higher engine RPM associated with modified Cummins engines.

Just because you dont see physical signs of failure with your existing pushrods, does not mean they shouldn't be replaced. Even in mild applications, excessive flexing from your pushrods can cause power loss, and lead to other valvetrain issues and component failures.

The XDP Street Performance Pushrods are handcrafted in the USA to XDP's stringent specifications. They feature a 3/8 diameter and are built from only the highest quality seamless 4130/4135 chromoly tubing that is cold drawn over a mandrel to increase rigidity and reduce flex. The tips are CNC machined from 86L20 bar stock that is core hardened and triple tempered, providing increased impact and wear resistance.

These materials and procedures not only extend the life of these pushrods, they improve performance of your valvetrain. Sold as a set.
Features:

• Supports 500HP+
• 170,000 PSI Tensile Strength
• 4130/4135 Chromoly Construction
• Great For Stock To Moderate Builds
• 3/8 inch x .095 inch, 11.450 inch Overall Length
• Made in the USA!

Installation Note: These Pushrods are a direct replacement for the factory pushrods in your engine. Please consult the factory service manual for removal, installation and valve adjustment instructions. This information can also be found in the Haynes Manuals below.
Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.

Introducing our Freedom Series cylinder heads - Give new life to your engine with our fully remanufactured Cummins cylinder head. Each head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications.

All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs ensure you'll never worry about a coolant leak under the valve cover again.

Perfect for a daily driver or heavy duty towing, our Heavy Duty Street heads are rated for use up to 700hp. Freedom Series Heavy Duty Street heads Include: 11 Screw in Freeze Plugs (eliminates coolant leaks) Hardened, oversized press-in valve seats Fleece heavy duty 105 lb valve springs Fleece tool steel retainers New valve guide liners

Head gasket not included. We recommend the use of Mahle 54556A or Cummins 3958645. Core and crate return required - all paperwork and instructions for return included with the new cylinder head. Read our core charge policy here.

You are responsible for all return shipping costs of the core. 

Installation by an experienced technician recommended. Valve lash required. Back off adjusters on rocker arms or damage will occur to the cylinder head. Core Return For Residential Customers For residential customers needing to return the cylinder head core we have partnered with Fastenal to provide a convenient freight service from Fastenal locations nationwide at a reduced cost.

Introducing our Freedom Series Cummins Performance cylinder heads. Each head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications.

All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs ensure you'll never worry about a coolant leak under the valve cover again. Whether you are sled pulling, drag racing, or just looking for extra power when towing our 5.9L Performance will get you the power you need and are rated up to 1,100hp!
Freedom Series Performance heads Include:

• Fire ring the cylinder head (All in the head)
• 11 screw in freeze plugs (eliminates coolant leaks)
• Hardened, oversized press in valve seats
• New valve guide liners
• Manley 1.380 inch stainless valves
• Manley valve springs
• Hamilton tool steel retainers
• Fire ring gasket kit with multi-layer steel gasket and 4.550 inch diameter rings

Core and crate return required - all paperwork and instructions for return included with the new cylinder head.

Introducing the Freedom Series cylinder heads - Give new life to your engine with our fully remanufactured Cummins cylinder head. Each head is manufactured in our state-of-the-art cylinder head machine shop and guaranteed to meet or exceed factory specifications.

All heads are inspected, pressure checked, decked, painted, and ready for installation. Plus, the 11 screw in freeze plugs ensure you'll never worry about a coolant leak under the valve cover again.

Perfect for a daily driver or heavy duty towing, our Street heads are rated for use up to 700hp. If your engine configuration is exceeding factory RPM limits a Performance Series head with higher valve spring rates is required.
Freedom Series Street heads Include:

• 11 Screw in Freeze Plugs (eliminates coolant leaks)
• Hardened, oversized press-in valve seats
• New Cummins valve springs
• New valve guide liners

Features:

• 5.9L Remanufactured Cummins Cylinder Head (Street)
• Engine Manufacturer: Cummins
• Liter: 5.9 Liter
• Sold As: Kit

Head gasket not included. We recommend the use of Mahle 54556A or Cummins 3958645.
Core and crate return required - all paperwork and instructions for return included with the new cylinder head.

Increase reliability and put maximum power to the ground in your 1998.5-2018 Dodge 5.9L/6.7L and 6.7L Cummins with the XDP Competition and Race Performance 7/16 Pushrods XD205. In high performance and competition applications, the factory pushrods are nowhere near adequate to handle the stress from increased cylinder pressures, valve springs pressures, and higher RPM.

Just because you dont see physical signs of failure with your existing pushrods does not mean they can handle the power of your modified Cummins engine. This is why the XDP Competition and Race Performance Pushrods feature a 7/16 diameter as an upgrade over the 3/8 diameter of the Street Performance Pushrods.

The XDP Competition and Race Pushrods are handcrafted in the USA to XDP's stringent specifications. They feature a 7/16 diameter and are built from only the highest quality seamless 4130/4135 chromoly tubing that is cold drawn over a mandrel to increase rigidity and reduce flex. The tips are CNC machined from 86L20 bar stock that is core hardened and triple tempered, providing increased impact and wear resistance.

These materials and procedures not only extend the life of these pushrods, they improve performance of your valvetrain.

While the Competition and Race Pushrods were designed for high horsepower applications, they can be used in stock and mild applications for those who like to go overkill or for anyone that has bigger plans for a future build, but needs to upgrade their pushrods now. The 7/16 Pushrods can handle around 1500HP and are an excellent valvetrain upgrade on stock to extreme engines. Sold as a set.
Features:

• Supports 750HP+
• 170,000 PSI Tensile Strength
• 4130/4135 Chromoly Construction
• Great For Stock To Extreme Builds
• 7/16 x .120, 11.450 Overall Length
• Made in the USA!

Installation Note: These Pushrods are a direct replacement for the factory pushrods in your engine. Please consult the factory service manual for removal, installation and valve adjustment instructions. This information can also be found in the Haynes Manuals below.
Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.

This product fits the following vehicle configurations:

This product fits the following vehicle configurations:

This product fits the following vehicle configurations:

This product fits the following vehicle configurations:

This product fits the following vehicle configurations:

This product fits the following vehicle configurations:

Upgrade the Rocker Arm Bridges in your 1998.5-2018 Dodge 5.9L and 6.7L Cummins with the XDP Billet Rocker Arm Bridge Set XD318. From the factory, your Cummins rocker arm bridges are only designed to operate under the stock output levels.

The added stresses and load from a modified engine can quickly exceed the levels the that the stock rocker arm bridges can support. The XDP Rocker Arm Bridge Set is built from CNC machined billet 4140 chromoly for long lasting durability, and a perfect fit and finish. Sold as a set.
Features:

• Increased Strength
• Sold As Complete Set
• Billet 4140 Chromoly Construction

Upgrade your Cummins valve springs and retainers with our Fleece Performance spring and retainer kit. Our springs are manufactured from super clean Hi-Tensile Chrome Silicon steel with a proprietary multi-step heat treating process that minimizes load loss.

These springs have a seat pressure of 105 pounds with an open pressure of 195 pounds at maximum lift. The retainers are thru-hardened 4140 chome moly steel and have a black oxide finish.

Details:

• Fits 24V Cummins
• Engine Manufacturer Dodge
• Engine Cummins
• Sold As Kit
• Material 4140 chromoly steel
• Fastener Size Black
• Finish Black Oxide Finish
• Seat Pressure 105 Pounds
• Seat Pressure At Max Lift 195 Pounds

Control the valvetrain in your modified 1998.5-2018 Dodge 5.9L Cummins with the XDP Heavy Duty High Boost Valve Spring Set XD390. The XD390 Valve Spring Kit is designed to help eliminate valve float due to elevated cylinder pressures and higher boost levels.

Common upgrades like aftermarket tuning and fueling and turbo upgrades can cause valve float that results in severe engine damage. Intake valves can also be blown open from added boost levels and exhaust drive pressure which allows reversion. Reversion is when exhaust gasses enter cylinder on the intake stroke, another condition that can hurt your power potential.

The XD390 Valve Spring Set is ideal for the enthusiast that is running an aftermarket camshaft, upgraded or compound turbochargers, and fueling upgrades. These springs are ready to install using your factory retainers and locks. The XD390 Valve Springs have a reduced OD and will fit all 1998.5-2002 cylinder heads regardless of the casting inconsistencies.
Features:

• Performance Valve Spring Kit
• Essential For Elevated Boost Levels (50 and up lbs)

Specifications:

• Installed Height: 1.340 inch
• Installed Pressure: 108lbs
• 192lbs at .920 inch
• Coil Bind: .800 inch

The XDP Rocker Arm Trunnion Set With Polishing Tool XD319 is an upgrade for the often overlooked rocker arm trunnions in modified 1998.5-2018 Dodge 5.9L and 6.7L Cummins engines. The OEM rocker arm trunnions were only made to withstand stock horsepower levels.

The additional stress caused by common performance upgrades can quickly push these levels above what the factory components were designed to handle. This causes galling on the trunnions and the rocker arm bushing surfaces. Once this galling begins, it often ends with the rocker arm seizing to the trunnion causing bent pushrods and in many cases severe engine damage.

The XDP Rocker Arm Trunnions are designed for enhance oil flow to eliminate these issues. Manufactured with larger oil supply holes, increased oil groove width, and additional oil transfer grooves that reduce friction in the rocker arm bushing area to extend the life of both the rocker arm and the trunnion.

The XD319 Rocker Arm Trunnion Set is CNC machined from premium tool steel. They are then core hardened, precision ground, and nitrided. These extra steps in manufacturing provide increased durability and an extended life giving you a part that's stronger and more reliable than the factory part it is replacing. Sold as a set of 12. Each set includes a refinishing kit so you can polish the galled rocker arm surfaces before installing the XD319 Rocker Arm Trunnion Set in your truck.
Features:

• CNC Machined
• Larger Oil Supply Holes
• Increased Oil Groove Width
• Added Oil Transfer Grooves
• HD Billet Tool Steel Construction

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.

The XDP Roller Rocker Arm Assembly Set XD326 is the ultimate upgrade for the rocker arms in your 1998.5-2018 Dodge 5.9L/6.7L Cummins. Your valvetrain components are on borrowed time if your engine is heavily modified.

The XD326 addresses multiple weak points to give you a valvetrain that will support extreme horsepower while giving you the durability and reliability that you've come to expect from your Cummins diesel engine. This set is built using the same materials, components, and manufacturing processes that have been tested and proven in top fuel and blown alcohol racing engines.

The XD326 lets you take the performance and reliability of your truck to the next level. This system is a direct bolt-on and can be used on any application including stock engines and competition/race builds.
Roller Rocker Arm Assemblies
The XDP Roller Rocker Arms feature a revised design with added mass that triples strength over the factory rocker arms. Manufactured from a proprietary grade of heat-treated tool steel for extreme durability. The roller tips drastically reduce friction between the valve bridge and rocker arm, while reducing side thrust on the valve guides to decrease wear. The high load bronze bushing provides a replaceable wear surface and friction reduction when compared to the OEM rocker arms.
Billet Tool Steel Adjusting Screws
The XDP Roller Rocker Arms come with ultra-durable high-quality adjusting screws manufactured from H-13 tool steel that has been heat-treated, triple-tempered, and nitride coated to for long-lasting performance and reliability.
Rocker Arm Trunnion Set
Your OEM Rocker Arm Trunnions are only made to handle stock power levels. Added stress from aftermarket upgrades and increased power quickly maxes out the capabilities and oil flow of the stock trunnions. The XDP Rocker Arm Trunnion set is made from premium tool steel that is hardened and nitride coated. The upgraded trunnions have been machined to increase oil supply for maximum lubrication in the most extreme applications.
Billet Rocker Arm Bridges
The XD326 Roller Rocker Arm Assembly Set is made for serious power and dependability, your factory rocker arm bridges are not. Featuring a CNC machined 4140 billet chromoly construction, the billet rocker arm bridges are able to withstand the added stress from your modified Cummins engine.

Includes: XDP Roller Rocker Arms and Adjustment Screws, XDP Billet Bridges, and XDP Rocker Arm Trunnions
Features:

• Bolt-On Installation
• Stock Rocker Arm Ratio
• Increased Strength and Reliability
• No Additional Modifications Required

Warranty Info:
Products manufactured by XDP carry a 1-Year warranty against defects in materials and craftsmanship. The Warranty is Limited to one (1) year from the date of sale and limited solely to the parts contained within the product's kit.

An ARP cylinder head stud kit is precision centerless-ground for accuracy. Thread-rolled to Mil-S-8879 specifications for increased strength while reducing stress at the threads. Hardened parallel washers for uniform load distribution and accurate torque readings. It is highly recommended for boost levels of 45 psi and higher.
Features:

• Head Stud Kit (218002000)
• Made from 8740 Chromoly with black oxide finish, for protection from corrosion
• 36 studs, flat washers and nuts included
• Studs are built specifically for high-performance applications
• Sold As A Kit

Applications:

• 2003-2007 Dodge Ram 5.9L Cummins Diesel (12-Valve Engine)

TrackTech Complete Top End Cylinder Head Gasket / Studs Service Kit

Fitment

03-07 5.9L Dodge Cummins 24V
Designed For Over Bored Sleeved Engines

TrackTech Head Stud Kit SKU: TTC98520HS010

(Please See The Installation Instructions In The Technical Documents Section Of This Listing.)

• (20) Cylinder Head Studs (Shorter)
• (6) Cylinder Head Studs (Longer Exhaust side location outside of the valve cover)
• (26) Cylinder Head Stud Nuts
• (26) Cylinder Head Stud Washers

The highest tensile strength in class TrackTech Head Studs are manufactured with the highest tensile strength in the industry at 240,000 PSI.  They are tested several ways including in the lab using a state-of-the-art UTM machine validating 240k PSI tensile strength. Plus, on the track where racers put TrackTech fasteners through the most demanding conditions making these head studs the race-proven choice for your 5.9L Dodge Ram Cummins 24v.

• 240,000 PSI Tensile Strength
• UTM Machine Tested and Validated
• Lab, Bench, Street and Strip Tested

MAHLE HEAD GASKET SET

Supplemental Parts

Since this is a major repair we suggest using the best available hardware to get the job done right the first time. Here are some supplemental items our customers have chosen when opting to complete this repair: Thermostat, CCV Filter, Fuel Filter, Oil Change, Coolant Change, Engine Air Filter

TrackTech Exhaust Manifold  Bolts SKU: TTC0307EB407
TrackTech Exhaust Manifold To Turbo Studs SKU: TTC8907ES409

For A Bottom End Repair You Will Also Need The Following

If the repair requires the removal of pistons or the crankshaft you will need the following in addition to the parts outlined above. Timing Cover Gaskets, Front Crank Seal, Rear Crank Seal, Pistons or Piston Rings, Rod Bearings, Main Crank Bearings etc.

TrackTech Connecting Rod Bolt Set SKU: TTC0318CB302
TrackTech Main Stud Kit SKU: TTC9807MS122

Cross Reference

3958644, 3966342, 3966343, 4089172, 4089781, 4089819, 5093 228AB

TrackTech Exhaust Manifold Bolts

Fitment

03-07 5.9L Dodge Cummins 24V

TrackTech Exhaust Manifold Bolts have been designed to exceed factory specifications.

When dealing with the removal of the head, turbo replacement, or doing an overhaul on the engine these mounting studs and nuts are often overlooked until they break off or require a torch to remove. Don’t be left stranded and wasting time while awaiting replacements in individual pieces from different batches. Order a pre-configured kit that fits your truck right the first time.

Cross Reference

• 3944593
• 3944655
• 5012557AA

Cross Reference

• 3818824
• 4931642