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Professional Products
Professional Products makes the finest performance parts your can buy at lower prices.

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Carburetor Fittings
Carburetor Fittings from PitStopUSA.com are perfect for plumbing and upgrading carburetion fuel systems. We have a wide variety of carburetor fittings and adapters to choose from.
Carburetor Fittings and Adapters
Carburetor Fittings from PitStopUSA.com are perfect for plumbing and upgrading carburetion fuel systems. We have a wide variety of carburetor fittings and adapters to choose from.
Carburetor Fuel Lines
Fuel lines from PitStopUSA.com are offered in a wide variety of configurations and finishes. They provide superior flow and corrosion resistance while providing an aggressive look for your engine compartment of your race car.
Fuel Hose Fittings
You can create incredible horsepower and torque simply by getting the right mix of air and fuel into your engine. We offer a full line of fuel system components to ensure you're supplying clean...More Details »
Fuel Pressure Regulators
Pit Stop USA is The Online Motorsports Superstore! We feature Fuel Pressure Regulators at low everyday prices.
Harmonic Balancers
Available as internally and externally balanced units for small block and big block engines, harmonic balancers are ready for the installation of your pulley system.
In-Line Fuel Filters
Pit Stop USA offers In-Line Fuel Filters at low everyday prices.
NPT To Hose Barb Fittings
Pit Stop USA is The Online Motorsports Superstore! We feature Straight Pipe Thread To Hose Barb at low everyday prices.
Throttle Bodies
PitStopUSA.com offers a variety of Throttle Bodies from the biggest brands in drag racing including Accel Throttle Bodies, BBK Performance Throttle Bodies, Edelbrock Throttle Bodies, FAST Throttle...More Details »
Items 1-9 of 9

Professional Products Products

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Items 1-7 of 7
Description: Fitting, Fuel Line Adapter, 30 Degree, 3/8 in NPT Male to 3/8 in Hose Barb, Stainless, Natural, Each
Item #: PRP54187
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $30.63
Sale: $23.88
Save: 22%
Save: $6.75
Qty:

Description: Fuel Filter, Hi-Tech, In-Line, 35 Micron, Stainless Element, 3/8 in NPT Female Inlet, 3/8 in NPT Female Outlet, Aluminum, Blue / Red Anodize, Each
Item #: PRP10214
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Ships from Michigan.
Price: $70.69
Sale: $44.87
Save: 37%
Save: $25.82
Qty:

Description: Throttle Body, Stock Flange, 96 mm Single Blade, Aluminum, Natural, GM LS-Series, Each
Item #: PRP69729
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $528.06
Sale: $287.86
Save: 45%
Save: $240.20

Description: Carburetor Fuel Line, Powerflow, 8 AN Male Inlet, 5/8-18 in Dual Outlets, Braided Stainless, Blue / Red / Silver, Holley 4160 Carburetors, Kit
Item #: PRP10403
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Ships from Michigan.
Price: $118.14
Sale: $68.88
Save: 42%
Save: $49.26
Description: Fuel Pressure Regulator, 25 to 75 psi, In-Line, 3/8 in NPT Female Inlet, Three 3/8 in NPT Female Outlets, 1/2 in NPT Return, 1/8 in NPT Port, Aluminum, Clear Anodize, Gas, Each
Item #: PRP10673
Condition: New
Not Available
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $231.48
Sale: $140.87
Save: 39%
Save: $90.61
Description: Harmonic Balancer, Powerforce, 8.000 in OD, Steel, Black, Internal Balance, Small Block Chevy, Each
Item #: PRP80002
Condition: New
Not Available
Same Day Shipping!
Ships from Michigan.
Price: $141.10
Sale: $84.87
Save: 40%
Save: $56.23
Description: Harmonic Balancer, Powerforce, 6.400 in OD, Stainless, Polished, 28 oz External Balance, Small Block Ford, Each
Item #: PRP82006
Condition: New
Not Available
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $546.28
Sale: $291.87
Save: 47%
Save: $254.41

Items 1-7 of 7

More About Professional Products

Pit Stop USA is The Online Motorsports Superstore! Professional Products makes the finest performance parts your can buy. Professional Products use the latest manufacturing techniques and the best materials available. Professional Products also added a harmonic damper program that offers unmatched precision and performance, compared to others that ask twice the price. Professional Products Power+Plus Typhoon Manifold is a high performance dual plane, 180A street manifold that produces power comparable to some single plane manifolds yet retains the throttle response and drive ability typical of a dual plane. This manifold also features cast-in nitrous bosses with water outlets at all four corners plus dual distributor hold downs. Professional Products CrossWind features an open area under the plenum chamber. This provides for a flow of cooling air which keeps the temperature of the air/fuel charge lower thus producing more power and torque. Professional Products Power+Plus Hurricane Manifold is a single plane 360A design that provides optimum power in the mid to upper rpm ranges. Features include nitrous bosses, dual distributor hold downs, four corner water ports, and more. The Power+Plus Hurricane ports are very specifically positioned to provide an optimum starting point for custom porting. Fits standard port location 23A heads including cast iron Bowtie, Dart Iron Eagle, World, plus most aluminum aftermarket 23A heads. Professional Products PowerForce and PowerForce+Plus Harmonic Dampers are 6-3/4" in diameter and approximately 1-1/8" thick. These Professional Products dampers are dimensionally identical to the stock G.M. 6-3/4" damper. They have 60A of easy to read timing marks and engraved marks every 90 degrees. The Powerforce high performance street model weighs approximately 8-1/2 pounds and the Powerforce+Plus race model weighs 9.3 pounds. We feature Professional Products Intake Manifolds and Professional Products Harmonic Balancers at low everyday pri