Mallory Ignition is the Industry Leader in Race-Winning Performance Ignition. Mallory CT Pro Ignition w/ Adjustable Rev Limiting. With over 375,000 miles of ARCA competition without a single failure, Mallory's new CT Pro Ignition is the hot tip for 2009! This latest version delivers the same dependability with fully adjustable digital rev limiting. Forget about chips; get the most accurate rev-limiting with just a twist of the 2 rotary switches - adjustable in 100-RPM increments from 1,000 to 9,900 RPM. The rev-limiter was specially developed for smooth action and won't upset the chassis. The CT Pro utilizes Mallory's exclusive enhanced heat and vibration technology and is fully encapsulated. Equipped with a 6 pin weatherproof connector to plug into most popular harnesses. For USMOD 358 cubic inch distributor equipped engines.

http://malloryracing.com/

Founded in 1974, Schoenfeld Headers is the largest circle track header manufacturer in the world.  
The staff at Schoenfeld Headers listens to you, their customers, understanding your needs and giving you a quality product at a fair price. Real Racing - Real Affordable!

http://www.schoenfeldheaders.com/

The MAHLE Motorsports Power Pak kit is our high volume shelf stock program developed for high performance enthusiasts and sportsman class racers. The Power Pak pistons are predominately made from 4032 aluminum alloy to allow for tighter cylinder to wall clearances, and improved temperature stability. Some applications require 2618 alloy including the Power Pak Plus category. Each kit is complete with a set of high performance rings, containing a low drag 1.5mm, 1.5mm, 3.0mm set or 1/16’, 1/16”, 3/16” high performance Ring Pak standard with big block kits.

Power Pak feature includes:

Forged piston for performance applications

Fully-machined crown Grafal anti-Friction coating on skirts*

Phosphate-coated to reduce micro-welding and pin galling**

Pin bores binished on CNC boring equipment

Deburred

High strength, light weight steel pins

Race proven round wire locks Low drag ring pak

 Light weight slipper kirt forgings

* MAHLE’s GRAFAL® skirt coating reduces drag, scuffing, friction and cylinder bore wear; reduces piston noise.

** Phosphate coating provides the grey appearance to the MAHLE piston. This dry lubricant coating (not to be confused with a thermal film coating) provides a lubricant film in the pin bores and ring grooves until the oiling system of the engine reaches operating pressure; particularly useful during the initial start-up or break-in of engines to protect against galling and microwelding. The piston crown is still machineable.

http://www.mahlemotorsports.com/

Compstar Crankshafts Better by Design

Compstar Performance Crankshafts are designed by our engineers, and forged on proprietary dies, made to our specifications. They are rough machined from certified AISI 4340 forgings to our tolerances, then finish machined in our facility.

Our in house solid modeling abilities provide a great advantage in product development. We're able to precisely locate material where it will yield the greatest advantage in terms of both strength to weight, and balance ability.

Beginning with properly placed counterweights that not only improve balance but reduce bearing loads, every aspect of these highly stressed components has been analyzed. Our forgings are rough machined in a process that includes double stress relief operations that make these crankshafts very dimensionally stable.

Hardened with a deep nitride, Compstar cranks are ideal for all types of abusive racing environments. All rod journals are drilled and counterweights are profiled for piston clearance. With our consistent grind and polish, along with our precise stroke and index, you will see why we say these crankshafts are Compstar Correct

Compstar Connecting Rods

Better by Design

Designed and Produced with Engineering and Finishing advancements, CompStar high performance connecting rods have what it takes to make your engine build trouble free and your finished product reliable. Every detail of this highly stressed component has been carefully analyzed to maximize repeatability and dependability.

Based on feedback from a variety of highly regarded professional engine builders, Compstar engineers set out to address the most common issues associated with many aftermarket connecting rods. Big End Bore Sizing

Out of round, and repeatability are certainly a major concern for all engine builders. Many connecting rods are dimensionally well within industry standards out of the box, but after disassembly and re-assembly become out of round. Compstar rods maintain dimensional repeatability through use of a lengthy stress relief process, and multiple re-torque processing. The combination of the release of residual machining stresses and burnishing of threads and bolt spotfaces ensure that big end bores stay round regardless of how many times your rods are disassembled and re-assembled.

Preparation Time

Properly detailing connecting rods in preparation for use is a time consuming task. Compstar connecting rods have the most common prep work already done. Pin bushings are chamfered and honed for proper high performance oil clearance. Parting line edges are generously chamfered to resist scraping during insertion of the bearing shells. The bearing locating tab slots are de-burred to ensure the bearing tab is fully seated for trouble free installation.

No Costly Upgrades

Compstar rods were designed with higher horsepower stroker motors in mind from the start, not as an afterthought. Bolt upgrades and stroker clearance are normally additional cost options with other rods, but are standard equipment with Compstar rods.

ARP 2000 bolts are used exclusively for superior tensile strength and clamping force at the critical mating joint of the rod and cap. The placement of these bolts is also key to additional rotational clearance in stroker applications at the bottom of the bores and at the pan rails.

Strengthening gussets are also added to the bolt spotface area of the cap where cross sectional thickness is at a minimum. These gussets not only increase strength, but aid in dimensional stability as well.

Contouring above the bolts increase cam clearance and decrease the amount of clearancing required at the bottom of the bores on the cam side. Compstar rods will clear a .660" lift cam on a .900" base circle with a 4.000" stroke crank without any modification to the rod.

The increasingly popular Forged Side Relief style pistons move the pin bosses inward, normally requiring narrowing of the pin end of the connecting rod. Compstar rods are designed and manufactured with a .960" pin end width, and will work with all currently available FSR style pistons without modification.

Reduced Weight

The Compstar engineering staff has worked very hard at reducing weight without sacrificing strength and durability. 3D solid modeling software has enabled us to refine our design while monitoring predicted weight, resulting in a very high strength to weight ratio.

http://www.compstarcomponents.com/

The USMOD Series is pleased to welcome Flag2Flag as the official racing classifieds of the USMOD Series.

 With over 1,000,000 visits to their site and over 20,000 members, Flag2Flag has become the #1 site for the race car trader. Buy, Sell and Trade your motorsports equipment for FREE!

   http://www.flag2flag.com/

 PERFORMANCE ENGINEERED KEIZER 3 PIECE MODULAR RACING WHEELS


• Removable billet center section gives unmatched strength & fatigue numbers

• High pressure points are supported by center section giving peak performance

• 3 piece design delivers a new standard of decreased wheel mass & weight

• Unmatched longevity & quality craftsmanship proudly produced in the USA

• Replaceable wheel halves readily available in the event of a crash when you need replacement most
• Lower overall inventory cost saving you money

With Keizer Aluminum Wheels you will always receive fast reliable service every time. All sizes and offsets available. Some sizes avialable in extra lightweight wheel compenents. Remember to ask our sales staff about titanium options and the various volume discount offers that are available.  http://www.keizerwheels.com/

 The new USMOD approved Mighty E85 ethanol carburetor by Demon is available in a 750cfm version. These new carburetors are calibrated for oval track applications.

 In common with Mighty Demon practice, this new E85 carburetor has a wide range of fine-tuning adjustments. It features interchangeable idle and high-speed air bleeds, idle-feed restrictors and main jets. It also boasts free-flowing air entries, ridge-free concentric venturi bores, large capacity fuel bowls with sight glasses, and billet metering blocks and baseplate. The p/n is 7402010-OT www.barrygrant.com

Dart's Iron Eagle Platinum small block cylinder heads with 49cc combustion chambers are very popular among oval track racers competing in the USMOD Series that require flat top pistons. But what pistons to use?

The small chambers produce high compression ratios, but they require a different piston than conventional 64cc or 72cc chamber heads as a result of a combination of machining changes that reduce the chamber volume.

The valves are closer to the deck in 49cc Iron Eagle heads and their location relative to the cylinder bore centerline is different than 64cc/72cc heads. Consequently the valve pockets in many pistons are not in the right locations. However, Mahle has found that their 21 degree flat top piston is a perfect fit for 49cc Dart heads - the pocket locations and depth work very well for those using this cylinder head. Pistons from other manufacturers that offer 21 degree flat top styles should also work in this application, but it is best to always check piston-to-valve clearance before final assembly. http://www.dartheads.com/