Summit Racing SpeedCard - learn how to get 15% back up to $150

Summit Racing SpeedCard - learn how to get 15% back up to $150

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MERCURY GRAND MARQUIS Parts and Accessories

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Results 1 - 14 of 14

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.

3.82 out of 5 stars ( 57 )

$2,132.95

$2,169.95

Edelbrock E-205 Cylinder Heads

You're taking a step up in performance with Edelbrock E-205 small block Ford cylinder heads. Featuring larger runners for increased airflow, revised exhaust ports, and larger diameter springs for higher lift camshafts, Edelbrock E-205 cylinder heads are ideal for spec series racers and larger displacement engines. They are able to support the power that you need to compete--more than 500 naturally aspirated horsepower and even more in forced induction applications! Get race-level performance with OEM compatibility when you bolt on a pair of Edelbrock E-205 cylinder heads.

3.5 out of 5 stars ( 2 )

$1,687.95

$1,838.95

Edelbrock Rollin' Thunder Hydraulic Roller Cam, Lifter, and Pushrod Kits

Make some noise with one of these Edelbrock Rollin' Thunder hydraulic roller cam, lifter, and pushrod kits. They feature a hydraulic roller camshaft and improved hydraulic roller lifters that have more aggressive profiles than conventional cams without excessive valve overlap. They do this by testing and tuning them together on engine dynamometers for maximum performance. There's no guesswork about part compatibility with the Edelbrock Rollin' Thunder hydraulic roller cam and lifter kits, and you can be sure that all of the combinations will perform. Recommended for high performance street and strip use, the Edelbrock Rollin' Thunder hydraulic roller cam and lifter kits work best from 1,500 to 6,500 rpm and they maintain good vacuum at idle.

3.43 out of 5 stars ( 7 )

$1,583.95

Wilwood Forged Narrow Superlite 6R Big Brake Front Brake Kits

Wilwood forged narrow Superlite 6R Big Brake front brake kits upgrade your late model ride with increased brake capacity and complimentary style. They're application-specific for a simpler installation and offer full compatibility with OE master cylinder output and ABS functions, where used. These front brake kits feature the extremely durable and efficient body design of their forged narrow 6-piston radial mount calipers. You can choose from optional caliper finishes and rotor designs to meet your personal style and braking requirements. Don't just replace—upgrade to generate big stopping power with Wilwood forged narrow Superlite 6R Big Brake front brake kits.

4.77 out of 5 stars ( 101 )

$2,155.71

On Sale

Stainless Works Performance Headers

Gain powerful sound, better performance, and improved mileage with a set of Stainless Works performance headers. Constructed from high-quality 304L stainless steel, the headers are CNC mandrel-bent and have durable 3/8 in. thick flanges. They're available to fit the factory connection point, or attach to a custom Stainless Works cat-back exhaust. Order the style you prefer and the model designed for your year/make and engine application.

4.62 out of 5 stars ( 29 )

$1,896.20


$1,596.80

Speed-Pro Piston and Ring Kits

Speed-Pro piston and ring kits include either cast, hypereutectic, or forged pistons and a set of matching moly-faced piston rings. The pistons include new wrist pins and come available in standard bores as well as oversized bores to fit your specific engine combination. Save yourself some extra money and get matching components in one package. The Speed-Pro piston and ring kits will help get your engine fired back up in no time.

4.33 out of 5 stars ( 6 )

$1,727.99

On Sale

Quick Fuel QFX-Series Carburetors

These Quick Fuel QFX-Series carburetors feature an all-new die-cast aluminum main body, which has a lengthened venturi section for greater midrange torque and better airflow. The annular booster venturis are precision die-cast with CNC-machined billet aluminum inserts, providing smoother and more refined air entry, a stronger vacuum signal, less turbulence, and improved fuel emulsion for better combustion. The Quick Fuel QFX-Series carburetors use red anodized billet aluminum CNC-machined metering blocks featuring 3-circuit metering (gasoline carburetors), changeable emulsion, idle feed, and intermediate bowl and feed discharge. Next, the die-cast aluminum fuel bowl combines high strength with significant weight reduction. They feature dual threaded fuel inlets and outlets and dual sight glass holes to easily set the float levels. The Quick Fuel QFX-Series carburetors feature Quick Fuel's external linkage with four different links to select the amount of primary throttle opening before the secondaries open: moderate progressive (25 percent), medium progressive (40 percent), full progressive (50 percent), and 1:1.

4.86 out of 5 stars ( 7 )

$2,099.95


$1,528.95

$1,888.95

Clearance

VEGE Remanufactured Drive Axle Assemblies

VEGE Remanufactured drive axle assemblies enable you to get back on the road quickly—without breaking the bank! With its advanced and efficient production process, backed by more than eight decades of experience, VEGE is able to supply remanufactured drive axles with a level of quality that equals that of new OEM products at extremely competitive prices. The parts are carefully inspected, cleaned, and then fully machined and assembled with top-of-the-line components. Unless otherwise noted, the assemblies include steel axle shafts, third member, ring and pinion, wheel studs, bearings, and seals. Includes fluid. Hundreds of models are available, for fitment on countless 4WD, AWD, and RWD applications.

3.67 out of 5 stars ( 3 )

$1,882.99

$2,194.99

Nitrous Express Pro Power Nitrous Plate Systems

Nitrous Express has a nitrous system for people with carbureted vehicles whose high performance philosophy is "too much is almost enough." Their Pro Power plate systems crank out power in spades, from a 100 to as much as a 500 hp increase over stock at the wheels. The heart of these systems is the "Next Generation" Phase 3 distribution plate, which has no spray bars to sag, split, or disturb the airflow into the manifold. Race fuel is required for increases above 150 hp. The kits come complete with: * Nitrous bottle and stainless steel mounting brackets * Solenoids * Relay * Supply line and fittings * Switches * Wiring * Mounting hardware

4.5 out of 5 stars ( 2 )

$1,760.58

On Sale

Aldan American Track Comp Suspension Packages

Aldan American Track Comp suspension packages upgrade your vehicle's suspension to double adjustable coilovers up front and shocks in the rear for a one stop solution to improved handling and a better ride. Aldan Track Comp packages are designed for an OEM like fitment that offers greater tunability and a wide range of ride height adjustment for the ultimate in suspension handling and performance. Vehicle-specific, the kits are easy to install and include everything you need to bolt-on to your factory or aftermarket control arms. Machined from lightweight, high-strength 6061 T-6 billet aluminum, Aldan front coilovers will lower 0.0 to 2.0 in. when installed and the rear shocks will work with factory shock mounts, offering a superior ride when compared to conventional shock absorbers. Both coilovers and shocks are factory serviceable and fully rebuildable. Achieve the perfect stance, as well as gain a smoother, more consistent with Aldan American Track Comp Suspension kits. Choose the Track Comp kit designed for your vehicle.

Not Yet Reviewed

$1,875.95


$1,688.36

VEGE Remanufactured Automatic Transmissions

VEGE Remanufactured automatic transmissions enable you to get back on the road quickly—without breaking the bank! With its advanced and efficient production process, backed by more than eight decades of experience, VEGE is able to supply remanufactured automatic transmissions with a level of quality that equals that of new OEM products at extremely competitive prices. The parts are carefully inspected, cleaned, and then fully machined and assembled with top-of-the-line components. Thousands of models are available, with aluminum case, torque converter included, and gear options from one through eight. Includes fluid. Get your vehicle shifting into gear with a reman auto-trans from VEGE.

4.43 out of 5 stars ( 7 )

$2,069.99

Summit Bucks

Eaton Electronic ELocker Differentials

Eaton electronic ELocker differentials offer you the best of both worlds. Imagine having the comfort and convenience of an open differential for around town—and the powerful traction of a full-on locker when it's necessary. This is exactly what the Eaton ELockers provide. With the push of a dash-mounted button, you decide when the differential should be fully locked for maximum traction to both wheels, or free to differentiate for the best fuel mileage and tire tread life. Whether you're running a 2WD or 4WD, open or locked, the Eaton ELockers put the driver in total control! Order the carrier designed for your axle model.

4.0 out of 5 stars ( 12 )

$1,522.99

Zumbrota Remanufactured Axle Assemblies

Zumbrota Drivetrain remanufactured axle assembles offer reliable performance at a value price. They're available for thousands of applications—from passenger and off-road vehicles, to race cars and pulling trucks. The axle tubes are straightened to OE specifications; the housings are hydro-blasted and rinsed, then tested for surface wear and cracks; and the gear patterns and rolling torque are properly adjusted to ensure optimum tooth contact. Zumbrota replaces all seals, bearings, crush sleeves, pinion nuts, and shims on the front and/or rear axle assemblies. Order the replacement model recommended for your specific vehicle.

4.0 out of 5 stars ( 9 )

$1,564.99

$2,010.99

Ford Performance Parts Z-Head Aluminum Cylinder Heads

Ford Performance Parts Z-Series aluminum cylinder heads provide increased intake and exhaust airflow and are available for Ford small block Windsor engines. They were designed using solid modeling technology from prime A356 T-6 aluminum and feature high-flow ports, steel alloy intake and exhaust valve seats, and manganese-bronze valve guides. Ford Z-Series heads accept both tapered seat and gasket-style 14mm spark plugs and are available as-cast or CNC-ported, both bare and assembled. Select heads are also offered with advanced "Velocity Vane" intake port design that delivers outstanding street/strip power. Developed with advanced computer-aided engineering simulation tools, their unique intake port design improves power throughout the rpm range. Velocity Vane cylinder heads are a direct bolt-on and retain OEM exhaust, intake, rocker arm, and accessory mounting locations. Features include (some vary depending on version): * A variety of combustion chamber volumes * Cast with high-flow ports * 20 degree inline valves * Steel alloy intake and exhaust valve seats * 7/16 in. screw-in studs (not included on bare heads) * Requires 1.5:1 ratio roller rocker arms with .150 in. offset intake pushrod cup (not included) * Assembled heads include laser-cut guide plates for 5/16 in. pushrods and 7/16 in. rocker studs * Premium stainless steel intake and exhaust valves (with assembled heads) Notes: * As-cast bare heads require competition valve job and bowl blending * Custom headers may be required for heads with raised exhaust port exits * Check intake manifold for port match; not all intakes are compatible due to the tall high-flow ports (does not fit M-9424-Z51/-Z51P) * Check piston-to-valve clearance, including radial valve clearance, before installing

5.0 out of 5 stars ( 1 )

$1,638.99

$1,705.99

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