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

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Air Cleaner Spacers
You can create incredible horsepower and torque simply by getting the right mix of air and fuel into your engine.
Canister Fuel Filters
Pit Stop USA is The Online Motorsports Superstore! We feature Canister Fuel Filters at low everyday prices.
Carburetor Adapters
Whether you want to run a Holley 4150 on a 4500 Dominator Manifold, turn your carb sideways, or mount a two barrel on a four barrel manifold, PitStopUSA.com has a huge selection of carburetor adapters to choose from.
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.
Chevrolet 2500/3500 Fasteners
Pit Stop USA sells all the products you need for your 3/4 and 1-ton GMC or Chevrolet Trucks including Fasteners.
Chevrolet 2500/3500 Fuel Injection Systems and Components - Electronic
Pit Stop USA sells all the products you need for your 3/4 and 1-ton GMC or Chevrolet Trucks including Fuel Injection Systems and Components - Electronic.
Chevrolet 2500/3500 Gaskets and Seals
Pit Stop USA sells all the products you need for your 3/4 and 1-ton GMC or Chevrolet Trucks including Gaskets and Seals.
Chevrolet 2500/3500 Intake Manifolds and Components
Pit Stop USA sells all the products you need for your 3/4 and 1-ton GMC or Chevrolet Trucks including Intake Manifolds and Components.
Distributor Caps
Maintaining your distributor on your race car is critical to maintaining peak performance. PitStopUSA.com offers a wide variety of distributor parts and accessories including Distributor Caps to...More Details »
EGR Plates
PitStopUSA.com offers a variety of EGR Plates from the biggest brands in drag racing including BBK Performance EGR Plates, Professional Products EGR Plates and more at low everyday prices.
Electric Fuel Pumps
Choosing the right electric fuel pump is the key to a efficient fuel system whether you have a high performance street machine or need huge amounts of fuel for your race car. Pit Stop USA carries a...More Details »
Engine Fastener Kits
Pit Stop USA is The Online Motorsports Superstore! We feature Engine Fastener Kits at low everyday prices.
Exhaust Y-Pipes - NEW
Check out the Recently Listed Exhaust Y-Pipes.
Items 1-25 of 79

Professional Products Products

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Items 1-25 of 201
Description: Crankshaft Pulley Spacer, 0.950 in Thick, Aluminum, Natural, 4-Bolt Pulley, Small Block Ford, Each. More Details »
Item #: PRP81007
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $20.99
Sale: $19.63
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Limited Supply: Only 0 Left!
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Price: $42.17
Sale: $28.04
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Description: Harmonic Balancer Counter Weight, Bolt-On, Hardware, Steel, Zinc Oxide, Professional Products Harmonic Balancers, Small Block Chevy More Details »
Item #: PRP91003
Condition: New
Limited Supply: Only 1 Left!
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Ships from Michigan.
Price: $10.23
Sale: $7.47
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Description: Open Center, Square Bore Carburetor, Dominator Manifold, 1.70" Thick More Details »
Item #: PRP20100
Condition: New
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Ships from Michigan.
Price: $57.10
Sale: $49.19
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Description: Open Center, Square Bore Carburetor, .125" Thick More Details »
Item #: PRP52111
Condition: New
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Price: $9.22
Sale: $6.52
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Description: Inline Mount, Aluminum, Blue/Red, 15 Microns, 1/2" NPT Female Inlet/Outlet More Details »
Item #: PRP10302
Condition: New
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Price: $56.19
Sale: $48.87
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Description: Thottle Body Gasket, Composite, Professional Products 65-75 mm Throttle Body, Small Block Ford, Ford Mustang 1986-93 More Details »
Item #: PRP69400
Condition: New
Limited Supply: Only 1 Left!
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Price: $4.49
Sale: $3.80
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Description: Intake Manifold, Crosswind, Spread/Square Bore, Dual Plane, Aluminum, Polished, Big Block Chevy, Each. More Details »
Item #: PRP53025
Condition: New
Limited Supply: Only 2 Left!
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Price: $300.00
Sale: $215.04
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Description: Carbureted, Aluminum, Big Block Chevrolet, Oval Port More Details »
Item #: PRP53026
Condition: New
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Price: $240.00
Sale: $185.87
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Description: Carbureted, Polished Aluminum, Small Block Chevrolet More Details »
Item #: PRP52025
Condition: New
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Price: $252.00
Sale: $195.76
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Description: Carbureted, Polished Aluminum, Small Block Chevrolet More Details »
Item #: PRP52027
Condition: New
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Price: $252.00
Sale: $204.72
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Description: Intake Manifold, Crosswind, Square Bore, Dual Plane, Aluminum, Polished, Small Block Mopar, Each. More Details »
Item #: PRP55025
Condition: New
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Oversized/Overweight Item. Ships from Michigan.
Price: $320.00
Sale: $228.56
Save: 29%
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Description: Carbureted, Aluminum, Chrysler, Dodge, Plymouth, Small Block More Details »
Item #: PRP55026
Condition: New
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Oversized/Overweight Item. Ships from Michigan.
Price: $225.75
Sale: $189.91
Save: 16%
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Description: Carbureted, Polished Aluminum, Small Block Ford More Details »
Item #: PRP54025
Condition: New
Limited Supply: Only 3 Left!
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Ships from Michigan.
Price: $357.00
Sale: $242.28
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Description: Intake Manifold, Cyclone, Spread/Square Bore, Dual Plane, Aluminum, Natural, Big Block Chevy, Each. More Details »
Item #: PRP53001
Condition: New
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Oversized/Overweight Item. Ships from Michigan.
Price: $220.50
Sale: $175.91
Save: 20%
Save: $44.59
Description: Intake Manifold, Cyclone, Spread/Square Bore, Dual Plane, Aluminum, Polished, Big Block Chevy, Each. More Details »
Item #: PRP53000
Condition: New
Limited Supply: Only 1 Left!
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Oversized/Overweight Item. Ships from Michigan.
Price: $267.75
Sale: $196.93
Save: 26%
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Description: Carbureted, Aluminum, Small Block Chevrolet More Details »
Item #: PRP52007
Condition: New
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Ships from Michigan.
Price: $168.00
Sale: $136.55
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Save: $31.45
Description: Carbureted, Polished Aluminum, Small Block Chevrolet More Details »
Item #: PRP52006
Condition: New
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Ships from Michigan.
Price: $236.25
Sale: $176.40
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Description: Carbureted, Aluminum, Small Block Chevrolet More Details »
Item #: PRP52001
Condition: New
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Price: $157.50
Sale: $124.14
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Description: Carbureted, Polished Aluminum, Small Block Chevrolet More Details »
Item #: PRP52000
Condition: New
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Price: $210.00
Sale: $166.66
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Description: Distributor Cap More Details »
Item #: PRP31000
Condition: New
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Price: $28.92
Sale: $19.63
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Description: Stainless Steel, Polished, 12-Point Head, Ford, 221-302, 351W More Details »
Item #: PRP54130
Condition: New
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Ships from Michigan.
Price: $200.00
Sale: $145.15
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Description: Engine/Accessory Fastener Kit, 12 Point Head, Stainless, Polished, Small Block Chevy, Kit. More Details »
Item #: PRP52130
Condition: New
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Price: $134.00
Sale: $108.45
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Description: Stainless Steel, Polished, 12-Point Head, Big Block Chevrolet More Details »
Item #: PRP53130
Condition: New
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Price: $175.00
Sale: $139.04
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Description: Gasoline, Paper, 10 Micron, Replacement More Details »
Item #: PRP10122
Condition: New
Limited Supply: Only 6 Left!
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Price: $7.00
Sale: $5.81
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Items 1-25 of 201

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