$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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MERCURY GRAND MARQUIS Parts and Accessories

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Results 1 - 24 of 2000 +

Edelbrock Pro-Flo 4 EFI Systems

Edelbrock Pro-Flo 4 EFI systems provide you with a high performance traditional-style intake and 4150-style throttle body. Unlike regular throttle body EFI systems, Pro-Flo 4 features the fuel rails and individual injectors for each cylinder mounted on the manifold. This Edelbrock design produces the best fuel atomization and distribution for the ultimate performance, as well as delivering the most control and the most efficient way to deliver fuel to your engine. Along with innovative design, Pro-Flo 4 systems have the latest technology with an all-new ECU, and even more features for advanced tuning, with the key being their exclusive E-Tuner app with base calibrations developed on their dyno. Edelbrock Pro-Flo 4 EFI systems include and feature: * Engine Control Unit with faster processor and upgraded Bluetooth chip in a thinner waterproof design * Fully assembled intake manifold with air valve, fuel rails, and injectors * Fully assembled OEM high-quality wiring harness with pre-terminated connectors and labeled connection for a simplified installation * E-Tuner application for setup and engine monitoring * Wideband oxygen sensor * Distributor (not included with LS kits) * Gaskets and hardware * Installation instructions * Ready to run out of the box with pre-loaded calibrations * Self-learning technology--no tuning experience or laptop tuning required * Ignition control--adjust ignition curve with the E-Tuner 4 App for optimal performance and mpg * Offered with multiple fuel injector choices * Now boost compatible up to 15 psi by switching to a 2-bar MAP sensor and downloading the new firmware update from Edelbrock for free! It is recommended to regularly check for firmware updates even if not utilizing boost control. * Systems automatically compensate for altitude and weather changes * E-Tuner 4 app with Bluetooth connectivity between ECU and Android phone or tablet. Includes multiple dash display configurations for monitoring engine vitals and performance; multiple control functions including two adjustable cooling fan outputs, idle speed, AFR set points, acceleration fuel tuning, ignition control, cold start fuel, and cranking fuel.

4.15 out of 5 stars ( 124 )

$2,542.95

$2,571.95

On Sale

MSD Pro-Billet Ready-to-Run Distributors

MSD Pro-Billet Ready-to-Run distributors are the perfect upgrade for weak OE electronic distributors, outdated points distributors, and large HEIs or DuraSparks. All that's required is to install the distributor in the engine, and connect three wires and the coil! A maintenance-free magnetic pickup accurately triggers this ignition with increased output from the amplifier, easily outperforming stock ignitions. It will smooth out the engine's idle, improve starting, and perform at a much higher rpm. The housing is machined from billet 6061-T6 aluminum, using state-of-the-art CNC mills and lathes for a unit with no porosity or weak areas. For stability and endurance, an oversized steel shaft spins in a top-mounted sealed ball bearing, while an extra-long sintered bushing guides the shaft at the base of the housing. This shaft also receives a QPQ coating for low friction wear and resistance against corrosion from humidity and ozone buildup. The distributors feature MSD's adjustable mechanical advance, which allows you to custom-tailor an ignition curve to match your engine's needs. Most models are also available with a vacuum advance canister to help improve economy. Order the model recommended for your vehicle and engine application.

4.34 out of 5 stars ( 328 )

$620.95

$825.95

Cragar 08/61 S/S Super Sport Chrome Wheels

You just can't go wrong with the timeless styling of Cragar 08/61 S/S Super Sport wheels. From the 5-spoke pattern to the beautiful chrome finish, these 08/61 SS Super Sport wheels are the classics that started it all. Their composite construction features chrome plated steel rims mated to aluminum alloy centers--no polishing is needed, leaving you more time for cruising! Cragar offers a variety of sizes in both standard and reverse offset models and includes larger-diameter models for today's high performance tires and suspensions. Wheels made to fit nearly any combination, easy maintenance, and head-turning looks are what have made Cragar 08/61 S/S Super Sport wheels so popular.

4.69 out of 5 stars ( 388 )

$305.37

Summit Racing™ Blueprinted HEI Distributors

Get more power from a high-energy ignition than you ever expected with a brand new Summit Racing™ blueprinted HEI distributor. They feature a 50,000 V coil, medium weight advance springs, and an aluminum housing. The distributor shafts are guided by precisely aligned bushings for durability in extended street use, and most models include an adjustable vacuum advance. Separate advance springs are available, so you can fine-tune to your hearts content. Be in it to win it—with the Summit Racing™ blueprinted HEI distributor designed to fit your application.

4.44 out of 5 stars ( 1226 )

$177.99

$292.99

On Sale

TCI Super StreetFighter Transmissions

TCI Super StreetFighter transmissions bridge the gap between the StreetFighters and full Competition series transmissions. Like the StreetFighter units, these are equipped with 100 percent tested, manual/automatic valve bodies. That means that most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. In either mode, you get a racetrack shift that bangs through the gears and shaves time off your ETs. When you use the manual gear selection feature, the Super StreetFighters upshift and downshift right when you move the lever, with no lag or governor override. When you select the normal drive position, the transmissions retain positive automatic shifts, for the ease of driving you look for in an automatic transmission.

3.78 out of 5 stars ( 55 )

$2,132.95

$2,169.95

Edelbrock Performer RPM Cylinder Heads

Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. These heads offer improved power throughout the RPM range for greater throttle response and top-end horsepower. Countless options are available; order the model recommended for your vehicle and engine application.

4.26 out of 5 stars ( 161 )

$1,022.50

$1,441.50

Cragar Chrome Keystone Klassic Wheels

Cragar Keystone Klassic wheels are highly polished and have a classic 5-spoke design. They feature a 2-piece composite construction steel rim mated to an aluminum center chrome plated with black accents.

4.68 out of 5 stars ( 60 )

$382.99

On Sale

MSD Ford Blaster Coil-on-Plug Ignition Coil Packs

These MSD Ford Blaster Coil-on-Plug ignition coil packs feature a patented winding design and direct bolt-in replacement. The improved spark energy and voltage of the coil packs, combined with their reliability, have made them a favorite of performance enthusiasts. They are designed as direct bolt-in replacement coils for many SOHC Ford V8 modular engines. The housing and installation are the same as the factory coils, but that is where the similarity ends. Inside the MSD coil packs, engineers used better quality materials to assemble the primary and secondary windings. The MSD Ford Blaster Coil-on-Plug ignition coil packs take the spark energy right out of the coil and put it across the plug gap to improve the combustion and output of the engine.

4.74 out of 5 stars ( 364 )

$399.95


$38.51

$359.95

BFGoodrich Silvertown Radial Tires

BFGoodrich Silvertown radials are great for classics, hot rods, and customs. Available in classic whitewall and redline styles, these tires are S-speed rated and are DOT and ECE-approved. Silvertown radials feature a high-tech, all-season tread design and are great for big-and-little combos. Tires with 13 to 16 in. rim diameters are available. They're the perfect tires for your cruising car! Order the tires designed to fit your wheel application.

4.59 out of 5 stars ( 355 )

$320.00

$330.00

Summit Racing™ OE-Style Harmonic Dampers

Summit Racing™ OE-style harmonic dampers are ideal for those mild street rebuilds that don't require the expense of a high-buck race damper. They feature durable nodular construction with bonded elastomer between the inner and outer rings. The balancers also have engraved timing marks, which means no timing tape! Summit dampers are available in a variety of sizes for many engine balance applications. Models are available for hundreds of vehicles; order the OE replacement recommended for your ride.

4.51 out of 5 stars ( 662 )

$101.99

$105.99

Coker Classic Star Series Whitewall Tires

Coker Classic Star Series Whitewall tires are modern radials with best-in-class speed, load and traction ratings. They feature stylish whitewalls, which are built into the tires from Day One—delivering the perfect look for your classic car. The whitewalls fit many American and European classic cars from the 1960 and earlier. Star Series tire ratings help them to provide excellent treadwear, traction, and temperature control. Another best-in-class rating is the T speed rating (118 mph), as well as XL load rating, thanks to a reinforced sidewall. The low-noise tread looks and performs nicely; and these tires are DOT approved and E-marked for the European market. You won't find a better whitewall radial tire on the market! * Best-in-class traction: Star Series tires feature Grade-A traction and temperature ratings, meaning you can expect excellent handling and traction on wet and dry roads. They're engineered to outperform all other whitewall tires, and feature a 480 AA UTQG rating for long-lasting tread life and unbeatable traction. This makes your classic car safer to drive in all weather conditions and improves your driving experience. * Star Series tires are engineered with a reinforced sidewall to better support the weight of classic cars. This reinforcement gives the tire Extra Load (XL) rating, meaning added safety and a long-lasting sidewall that won't break down over time. * Star Series tires feature a genuine wide whitewall sidewall style. This means that the bright white rubber is added directly to the tire sidewall during initial construction of the carcass, resulting in a truly integrated, high-quality product after vulcanization. Wide whitewall tires were a very popular choice from the 1930s through the end of the 1950s, and were eventually phased out of mainstream production by 1962. Originally, wide whitewall tires featured a bias ply construction, but now Coker Tire offers them in original style bias ply and modern radial construction. * T Speed rated: Up to 118 mph (190 km/h). Often required OE for higher performance trim level classic automobiles. * Available in a wide range of sizes

4.81 out of 5 stars ( 32 )

$178.00

$278.00

Hypertech Max Energy Spectrum Power Programmers

Hypertech's Max Energy Spectrum Power Programmers feature a large 4.3 in., daylight readable color display in a bold, contemporary-styled package. The Spectrum's fast processor speeds mean faster programming, and a more fluid user experience. The most power-per-dollar of any bolt-on product on the market, Hypertech's Max Energy Spectrum Power Programmer adds numerous vehicle specific features with each application. As in previous Max Energy Power Programmers, this latest iteration has the ability to read, display and clear diagnostic trouble codes. Hypertech's industry-leading aftermarket tuning now comes to you in a brand new, boldly styled package with a full color screen.

2.93 out of 5 stars ( 15 )

$399.95

Spicer Drivetrain Products Differential Cover Kits

Rust, rocks, and road debris all take part in destroying differential covers—so Spicer Drivetrain Products introduces a line of axle-specific replacements. These kits include a new cover, plug, and installation bolts for an all-new look. They're available in a variety of materials and finishes for high strength and good looks. The differential covers are offered for the front or rear with select options for your particular application.

4.78 out of 5 stars ( 94 )

$153.99

$170.99

Edelbrock Total Power Package 367 HP Small Block Ford Top-End Engine Kits

The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

4.67 out of 5 stars ( 6 )

$3,617.95

Demon Carburetion Street Demon Carburetors

Street Demon carburetors redefine street carburetors with clean looks and ease of use. They offer enthusiasts a straightforward design to deliver stable idle, amazingly crisp throttle response, and smooth performance. With optimized calibration and a dual mounting pattern, they are ready to run right out of the box. The carburetors feature an integrated fuel bowl/main body design with the gasket above fuel level and have no plugged passages, eliminating all potential leak paths. Additional features include: * Available with either a ball burnished aluminum, polished aluminum, or black aerospace composite fuel bowl * One-piece air horn assembly with a single fuel inlet * Torsion spring valve control/adjustment permits seamless primary to secondary throttle response, regardless of the throttle opening rate * Dual mounting bolt pattern (square bore or spread bore) fits any street 4-barrel intake manifold. Adapter may be required. * Integrated 700R4/200R4 transmission kickdown cable mounting location * Ford automatic transmission kickdown * Inverted flare and 3/8 in. barb fuel inlet fittings

4.58 out of 5 stars ( 387 )

$499.95

$549.95

Powermaster Street Alternators

Powermaster street alternators feature all of the quality construction and dependability the company is famous for. The "electrical generators" are available in a variety of amperages and styles, allowing you to choose the best model for your specific ride and the accessories you run. So whether you need an alternator for your truck, hot rod, musclecar, sport compact, or audio competition vehicle, Powermaster gives you the power you need to get it started and keep it going.

4.63 out of 5 stars ( 1772 )

$151.99

$427.99

Quick Fuel SS-Series Carburetors

These Quick Fuel SS-Series carburetors are designed to offer the power of a race carburetor in a streetable package that weighs 5 lbs. less than other carburetors. Manufactured completely from aluminum, they allow you to change the idle feed and offer power valve channel restrictions and idle and high-speed air bleeds for the ultimate in tunability. The solid-state, electric-choke Quick Fuel SS-Series carburetors have billet throttle bodies, billet metering blocks, 4-corner idle systems, secondary jet extensions, and notched secondary floats. The vacuum secondary carburetors feature fuel bowls with a single-sight glass window, while the mechanical secondary carburetors have dual-inlet, dual-sight glass 4500-style fuel bowls and include additional links to tune the secondary opening rate. Quick Fuel has done it--they've created all-aluminum Super Street carburetors that are perfect for your high performance street machine.

4.35 out of 5 stars ( 48 )

$949.95

$999.95

XS Power AGM Batteries

XS Power AGM batteries are some of the lightest racing batteries on the market. Independent test results have proven that they outperform other battery models that outweigh these power providers by up to 20 lbs. Cutting-edge lead acid battery technology produces more energy in a smaller space because each cell is compressed before case insertion, resulting in efficient power-producing packages that are completely sealed with no need to ever add water. This design is ideal for the abuse of racing, making these the batteries of choice for demanding racers and Monster Truck drivers who need top performance and reliability. When you are pushing to power the impossible, you need the non-stop capabilities of the XS Power AGM batteries best suited for your application. Product features include: * Designed to be an inch shorter than what the competition offers for fitting in places where space is at a premium * Deep-cycling ability and ultra-low internal resistance results in high cranking amps and excellent vibration resistance * Variable position mounting (except upside-down) thanks to the no-spill design * Offered in 6 V, 12 V, 14 V, and 16 V models

4.65 out of 5 stars ( 268 )

$399.99

$439.99

Powermaster XS Torque Starters

Powermaster's highly efficient XS Torque starters feature extra-powerful motors that churn out up to 200 lbs.-ft. of torque. Coupled with their 4.4:1 gear-reduction ratio, that equals reliable cranking power for engines, up to a whopping 18.0:1 compression ratio. These starters come with a billet adapter/mounting block for durability. They'll also clear your oil pan if the OE starter did. Some models are available in a chrome plated finish. Starter dyno test results are included. Order the replacement designed for your vehicle application.

4.56 out of 5 stars ( 896 )

$224.99

$373.99

Melling High-Volume Oil Pumps

Melling high-volume oil pumps give you an additional 20 to 25 percent of much-needed oil volume for your performance application. For those of you who need added pressure, many pumps are supplied with a high-pressure spring (where noted). The pumps are built using a proprietary casting process, which yields maximum performance and reliability. Every Melling oil pump is completely pressure-tested, including idle and bypass pressure, before it leaves the factory. Dozens of models are available for fitment; order the pump and options needed for your vehicle.

4.62 out of 5 stars ( 348 )

$53.99

$513.99

Maradyne Mach Two Series Electric Fans

Maradyne Mach Two series truck electric fans feature dual 225 W high performance IP68 sealed motors attached to dual 11 in. diameter 5-blade fans to put out over 2,500 cfm of airflow. They have all glass-filled nylon construction and include dual harnesses for an easier installation. The fans are available with different mounting bracket positions, so you can match up with your radiator mounting style.

4.93 out of 5 stars ( 15 )

$346.86

$372.93

PerTronix Flame-Thrower Plug and Play Billet Distributors with Ignitor II® Module

PerTronix Flame-Thrower plug and play billet distributors with Ignitor II® module are designed to provide maximum ignition performance and easy installation, all at a price that you can afford. They allow you to upgrade your outdated points or stock electronic distributor with a performance-proven unit. The distributors feature the patented Ignitor II® electronic ignition module and a CNC-machined 6061 T-6 polished billet housing. PerTronix electronics are compatible with any inductive ignition system coil, but high-rpm performance can be improved when they are used with the low-resistance (0.6 ohm) Flame-Thrower II coil. Their stand-alone design makes them plug-in units that require no additional ignition, but they are compatible with multi-spark CD ignition boxes for outstanding versatility. Additional features include a tempered shaft, an upper roller bearing, and an oil-impregnated sintered bronze lower bushing. The PerTronix Flame-Thrower plug and play billet distributors with Ignitor II® module come with a factory-set performance curve, a mechanical advance limiting adjustment, and a small, high-dielectric strength cap and rotor for applications with little clearance.

4.23 out of 5 stars ( 355 )

$295.50

$431.25

McGard Lug Nuts

McGard lug nuts are designed to last for life. These wheel fasteners are made of restricted chemistry steel for structural integrity, then triple nickel chrome plated in silver or black for lasting beauty. All McGard lug nuts are through-hardened and tempered, reaching the depth of hardness needed for their unsurpassed level of safety (unlike case-hardening, which is only a surface treatment). They're available in a variety of thread sizes, shank lengths and diameters, and seat and conical styles. McGard lug nuts also offer a lifetime guarantee against rust!

4.79 out of 5 stars ( 584 )

$14.99

$21.99

On Sale

MSD Pro-Billet Distributors

MSD Pro-Billet distributors share the same CNC machining techniques as the rest of the MSD distributor line. They feature a housing that's machined from high-quality 6061-T6 aluminum for durability and show-quality looks. Their oversized shaft receives a QPQ coating for friction reduction and corrosion resistance, with the added strength of two sealed ball bearings that guide the shaft accurately at well over 10,000 rpm. An extra-long sintered bushing replaces the ball bearing at the bottom of Chevrolet models. TIG-welded on top of the polished steel shaft is MSD's accurate mechanical advance assembly. The weights are supported by nylon pads that allow the advance to operate smoothly throughout the rpm range. For all-out racing, the advance mechanism can also be easily locked out. To accurately trigger the ignition, a high-output magnetic pickup is bolted to the base. This pickup produces a precise trigger signal that will never vary more than one degree at any rpm. A durable gear is installed for performance applications, and an MSD red cap with brass terminals and race rotor is supplied. They're available in standard and small diameter models for applications with limited clearance, and require the use of a separate ignition box such as an MSD 6, 7, 8, or 10 Series ignition.

4.75 out of 5 stars ( 402 )

$449.95

$622.95

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