1978 Dodge Diplomat Performance and Racing Products

Essential 1978 Dodge Diplomat Performance and Racing Products

Energy Suspension – Control Arm Bushing Set (Part No.5.3114R)

Control Arm Bushing Set

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$48.99
For both front and rear of suspensions on cars, trucks and SUVs. Maintains proper alignment under extreme conditions on and off-road and during competition. Improves vehicle handling, cornering and overall control. Full floating for smoother operation. Made of Energy’s Hyper-Flex performance polyurethane to add performance and durability.

Product Features:
  • Maintains Better Alignment While Driving
  • Full Floating and Non Binding
  • Fits Into the Remaining Stock Control Arms
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Mr. Gasket – Remote Oil Filter Kit (Part No.7682)

Remote Oil Filter Kit

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$97.99
This kit relocates the oil filter for quick, clean and easy access and increased filtering. It is complete with precision die cast aluminum by-pass, filter brackets and all high pressure connectors.

Product Features:
  • Relocate oil filter to an easy access location
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Edelbrock – Performer Intake Manifold Small-Block Chrysler (Part No.3776)

Performer Intake Manifold Small-Block Chrysler

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$449.99
Product Features:
  • For Idle to 5500 RPM Street-Driven Performance
  • Dual-Plane Low-Rise Intake w/180 Deg Firing Order
  • Patented Runner Design Ensures Broad Torque Curve
  • Excellent Throttle Response and Mid-Range Power
  • 50-State Street Legal if Correct Carburetor Used
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Mr. Gasket – Intake Manifold Bolts (Part No.6091)

Intake Manifold Bolts

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$32.09
These special Grade 8 intake manifold bolts feature a 12-point smaller-than-standard head and flange, and include special extra thick flat washers for optimum clamping pressures. They’re ideal for use where space is minimal, typical on larger runner race manifolds. These bolts and washers are bright zinc plated for protection and good looks.

Product Features:
  • Features 12-point Smaller-than-standard Bolt Head
  • Thick Flat Washers Distribute Optimum Clamp Load
  • Ideal Use Where Space Is Minimal On Race Manifolds
  • Bolts And Washers Zinc Plated For Protection
  • Zinc Plated For Protection
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Edelbrock – Intake Manifold Gasket for 1966-87 318-340-360 Chrysler engines (Part No.7276)

Intake Manifold Gasket for 1966-87 318-340-360 Chrysler engines

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$28.99
Product Features:
  • Clean Positive Seal
  • Embossed Silicone Bead Surrounding The Port
  • Matched To Manifolds And Cylinder Heads
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Energy Suspension – Performance Transmission Mount (Part No.5.1101G)

Performance Transmission Mount

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$24.99
A true performance application component for cars, trucks, hot rod, for racing and competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Made from HYPER-Flex Polyurethane
  • Firm Enough for Huge Amounts of Horsepower/Torque
  • Soft Enough Not to Transmit Vibration
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Edelbrock – Sure Seat Valve Springs for Chrysler 318-340-360 V8 1957-89 (Part No.5877)

Sure Seat Valve Springs for Chrysler 318-340-360 V8 1957-89

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$59.99
Product Features:
  • Non-Rotator Type
  • 1.394 in. Outer Diameter
  • 1.010 in. Inner Diameter
  • 1.010 in. Coil Blind
  • Set of 16
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FEL-PRO Performance – Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 4 Piece Set (Part No.1807)

Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 4 Piece Set

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$30.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
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B & M – Automatic Shifter, Stealth Pro Ratchet 3 and 4 Speed (Part No.81120)

Automatic Shifter, Stealth Pro Ratchet 3 and 4 Speed

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$549.99
The Stealth Pro Ratchet shifter is one of our most popular and easiest to operate race shifters. Features include positive ratcheting design that self-centers the handle after each shift giving you maximum clearance behind the shifter and will not allow y

Product Features:
  • Reverse Lockout Meets NHRA And IHRA Requirements
  • Carbon Fiber Look Without The Cost
  • Reliable And Race Proven Shifter Design
  • Short Throw
  • Stick Returns to Center
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Edelbrock – Performer 1405 Carburetor: 600 CFM, 4 Barrel, Square Bore, Manual Choke Inlet (Part No.1405)

Performer 1405 Carburetor: 600 CFM, 4 Barrel, Square Bore, Manual Choke Inlet

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$394.99
The Edelbrock 1405 Performer Series 600 CFM manual choke carburetor is a precisely tuned, quality-built carburetor that can handle the rigors of daily driving while delivering consistent, reliable street performance from day to day. Several characteristics make the 1405 Performer Series 600 CFM manual choke carburetor an outstanding street performer. The first one is that metering rods are utilized to transition between circuits. The carburetor is unaffected by engine backfires, which means that there are no power valves to blow out, and the rods can be changed in seconds without carburetor removal or fuel draining. Secondly, the carburetor has the unique ability to “hold a tune”, so once it is tuned, the carburetor stay’s tuned. What this means to you is that compared to other carburetors, the performance remains consistent and the calibration stays unchanged. The lightweight all-aluminum body features a two-piece body that resists warping and is compatible with gasohol and blended fuels. The simple tub-type bowls and rear-pivot floats all contribute to a carburetor that’s reliable, user-friendly and is easily tunable for miles and miles of trouble-free operation.

Product Features:
  • Edelbrock products offer improved performance and aesthetics for a broad array of vehicles and engines. ‘Proven performance’ is the philosophy by which Edelbrock was founded and it continues to this day with the highest standards for performance and quali
  • Manual Choke
  • 4 Barrel Count
  • Square Bore
  • Smooth Secondary Transition
  • Both Timed and Full Vacuum Ports
  • Includes PCV Outlet
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Spectre – Water Neck; Chrysler (Part No.4739)

Water Neck; Chrysler

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$23.79
Spectre’s Chrysler water neck fits 1964 and later Chrysler V8 engines. This water neck has been designed around the OEM specifications and has a chrome plated finish for a lasting look that fits great. This water neck includes bolts.

Product Features:
  • Fits 1964 and later Chrysler V8 engines
  • Includes bolts
  • Chrome plated
  • Easy to install
  • O-ring/gasket not included
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Earls Performance Product – Solo Bleed (Part No.280021ERL)

Solo Bleed

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$32.59


Product Features:
  • Prevents Air Inclusion
  • Direct Replacement
  • For OE Bleeders
  • One Person Bleeds Safely
  • Without The Mess
  • No Chance Of Air Bubbles
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Accel – Universal Fit Graphite Suppression; Spark Plug Wire Set (Part No.8026)

Universal Fit Graphite Suppression; Spark Plug Wire Set

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$128.99
These ACCEL carbon and graphite core wire sets virtually eliminate RFI noise, while providing maximum conductivity for ultimate performance in any race or street application. Double silicon insulation eliminates leakage and misfire.

Product Features:
  • Heavy Duty 8.8mm Oversized Silicone Jacket
  • 500 Ohms/ft. Of Resistance
  • 550 Degree Double Silicone Construction
  • Fiberglass Braid
  • Carbon/Graphite Core
  • Magnetic Suppression
  • Fiberglass/Kevlar Core
  • 500 Ohms Resistance
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Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

VALVE SEALS, TEFLON 3/8" 1 ST

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$31.99
COMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive-stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon seal it is necessary to disassemble the heads and machine the top of the guide with a special .530 diameter cutter. Whenever you are planning an engine overhaul or a cam change, don’t forget the valve seals.

Product Features:
  • Work with .530″ guides and 3/8″ valve stem diameter
  • Valve stem oil seals keep unwanted oil from entering the combustion chamber
  • Several different types of valve seals are offered
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Mr. Gasket – Exhaust Gasket Set (Part No.353)

Exhaust Gasket Set

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$30.99
Mr. Gasket Performance Exhaust Gaskets are manufactured from high-temperature composite material. They provides maximum torque retention to eliminate gasket failure. Precision die cut for an excellent fit, but can be trimmed if necessary for modified port applications. For OE replacement, high-performance street, drag race and oval track. Rectangular Ports, 1.00 inch x 1.64 inch

Product Features:
  • Manufactured from high-temperature acrylic blend exhaust material
  • Provides excellent sealing and durability
  • Can be trimmed if necessary for modified port applications
  • For OE replacement, high performance street, drag race and oval track use
  • Precision Die Cut For Excellent Fit
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Accel – Super Stock Replacement Coil for Improved Performance, Starting, and Power (Part No.8140)

Super Stock Replacement Coil for Improved Performance, Starting, and Power

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$42.49
Excellent high performance replacement for import and domestic vehicles with canister type oil filled coil. Re-engineered windings for even higher energy output resulting in quicker starting improved throttle response and more high RPM power. Designed to work with Points style and Breakerless electronic ignition systems. Heavy duty black Alkyd tower provides in flashover in protection to primary terminals. ACCEL Yellow can. 42000 volts effective up to 6500 RPM 1.4 ohms on the primary

Product Features:
  • 42000 Volts
  • Effective To 6500 RPM
  • Quicker Starting
  • Improved Throttle Response
  • Higher RPM Power
  • Can Finished In Yellow
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Mr. Gasket – Header Bolts (Part No.976)

Header Bolts

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$22.49
When installing headers you will need header bolts, factory exhaust manifold bolts won’t work. These Mr. Gasket Header Bolts are Grade 5 for strength, black oxide coated, and have a compact hex head that is ideal for use where space is minimal – your typical header flanges. Sold as a set of 14.

Product Features:
  • 14 per Package
  • Heat-Treated For Strength
  • Ideal For Tight Spaces
  • Grade 5 Material
  • Protective Black Finish
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Mr. Gasket – Oil Pan Bolt Kit (Part No.6088)

Oil Pan Bolt Kit

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$18.99
Oil Pan Bolt Kit

Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam and Lifter Kit for Chrysler 273-360 (Part No.CL20-222-3)

Xtreme Energy 218/224 Hydraulic Flat Cam and Lifter Kit for Chrysler 273-360

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$378.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:
  • Excellent performance in street carbureted applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.E-1100)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

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$102.99
K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle or outdoor power small engine. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
  • 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
  • CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
  • ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
  • EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
  • ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
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Mallory – Unilite Electronic Ignition Distributor Series 37 (Part No.3757901)

Unilite Electronic Ignition Distributor Series 37

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$538.99
The industry standard with adjustable mechanical advance curve. Triggered by photo-optic infrared LED system. Improved combustion efficiency and economy, increased spark plug life and cold weather starting, and maintenance free operation.

Product Features:
  • Improved Combustion And Economy
  • Increased Spark Plug Life
  • Improved Cold Weather Starting
  • Maintenance Free Operation
  • Accurate Spark Timing
  • Self-Lubricating Bushings
  • Years Of Trouble-Free Service
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Spectre – Valve Cover (Part No.5274)

Valve Cover

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$64.99
Available in various sizes, heights, and finishes, Spectre offers a wide variety of high performance valve covers designed to easily replace your stock covers. Designed for 1965-1991 Chrysler 273-318-340-360 engines, this valve cover features chrome-plated steel construction and a smooth design. Sold in pairs, this stock profile cover is baffled to provide optimum function. With show quality construction and a sealing edge designed for an ideal fit, our valve covers are engineered to look great for applications ranging from custom builds to replacing stock equipment.

Product Features:
  • Designed for 1965-1991 Chrysler 273-318-340-360 engines
  • Baffled for breather system compatibility
  • Sold in pairs
  • Triple chrome-plated steel construction
  • Stock height
  • Features OEM style sealing edge
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Hays – Power Train (Part No.11-330)

Power Train

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$479.99
Hays aluminum flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. Features replaceable steel surface insert. Precision balanced to either neutral (internal) or Detroit (external) specifications. Meets SFI specification 1.1 for racing.

Product Features:
  • Certified Billet Material
  • Borg and Beck Clutch Pattern
  • Long-Style Clutch Pattern
  • Ring Gear Securely Mounted To Prevent Spinning
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Powertrax – Lock Right Locker (Part No.1230-LR)

Lock Right Locker

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$450.99
The Powertrax Lock-Right ultra-strength alloy locker’s straight-line performance is equal to a solid spool, but automatically unlocks in turns. Best suited for extreme off-road to severe on-road use, Powertrax Lock Right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The whole job can be done in your driveway in a couple of hours, pin included! Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!The Powertrax® Lock-Right Locker provides outstanding traction for off-road machines and race vehicles. Powertrax No-Slip Traction Systems deliver excellent performance to street-driven cars and trucks.
  • Powertrax® lockers range from the original, Lock-Right for serious straight-line performance, to the No-Slip traction system for street-able vehicles.
  • Powertrax® offers three levels of GRIP locking differentials, ranging from the clutch-type GRIP LS with a forged steel case, the gear-driven GRIP PRO and finally the GRIP LOK for extreme traction.
  • Powertrax® = Extreme Traction Systems!
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    Energy Suspension – Sway Bar Bushing Set (Part No.5.5110R)

    Sway Bar Bushing Set

    from

    $42.99
    Energy Suspension performance polyurethane sway bar bushings and end links offer the greatest improvement in performance among all the products Energy offers. They make a vehicle’s sway bar system much more effective like adding a larger, higher performance sway bar! Economy, increased efficiency, and easy installation are just some of the reasons these products are so popular. Made of Hyper-Flex polyurethane that lasts much longer than O.E.M. rubber bushings.

    Product Features:
    • Allows Sway Bar System to Work At 100% Efficiency
    • Zerk Type Fittings
    • Allows for Periodic Greasing
    • Lasts Much Longer Than OEM Rubber Bushings
    • Handling Characteristics Improve Dramatically
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    Holley – Mechanical Fuel Pump Mounting Pad Cover (Part No.12-813)

    Mechanical Fuel Pump Mounting Pad Cover

    from

    $17.79
    Fuel pump mounting pad cover is used to cover the hole in the block when the mechanical fuel pump is removed to use an electric pump.

    Product Features:
    • Mechanical Fuel Pump Mounting Pad Cover For Chrysler V-8ft.S
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    FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1008)

    Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

    from

    $41.49
    Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

    Product Features:
    • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
    • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
    • Raises combustion sealing force to roughly three times that of standard head gaskets.
    • Steel wire rings for the greatest combustion seal strength.
    • Not intended for use in emission controlled vehicles.
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    Mr. Gasket – Breather/Oil Filler Cap (Part No.2059)

    Breather/Oil Filler Cap

    from

    $14.29
    Chrome plated breather cap is ideal for race car vacuum balance systems, as well as original equipment applications with positive crankcase ventilation (PCV).

    Product Features:
    • Features 1″ O.D. neck and a 5/8″ O.D. breather tube
    • Breather has Metal/Foam Baffle inside and includes Grommet
    • Fits all aftermarket valve covers with a 1.22″ Dia. opening
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    1978 Dodge Diplomat Performance and Racing Products

    You count on your 1978 Dodge Diplomat to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Performance and Racing Products. With 75 Performance and Racing Products ranging in price from $14.29 to $1,093.99, you’re sure to find everything you need for your 1978 Dodge Diplomat.

    Brands matter. If you want to shop a specific Performance and Racing Products brand, we stock 16 different brands like K&N, Accel, and Mr. Gasket. 1978 Dodge Diplomat Performance and Racing Products start as low as $14.29!

    One of the best ways to find top quality OEM or aftermarket Performance and Racing Products is by asking professionals. Short of that, you can shop with confidence thanks to our 3,868 extensive product reviews on 1978 Dodge Diplomat Performance and Racing Products. Some of the top-rated Performance and Racing Products products we carry are Performer 1405 Carburetor: 600 CFM, 4 Barrel, Square Bore, Manual Choke Inlet with 4.7 stars and Street Carburetor: 670 CFM, Electric Choke, 4 Barrel, Square Bore, Dual Inlet, Shiny with 3.8 stars.

    Did we mention you can order your Performance and Racing Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Performance and Racing Products inventory for your 1978 Dodge Diplomat below to get started!

    Top-Rated Performance and Racing Products Brands For Your 1978 Dodge Diplomat

    Trusted Performance and Racing Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 Dodge Diplomat running right for years to come. In our inventory you’ll find brands like K&N, Accel, Mr. Gasket, and even more.

    Popular Competition Cams Performance and Racing Products

    You’ll find popular Competition Cams brand products across Performance Engines. All are waiting to get your 1978 Dodge Diplomat back on the road. Some of the top-rated Competition Cams products in these categories are:
    VALVE SEALS, TEFLON 3/8" 1 ST
    from $31.99
    (1)
    VALVE SEALS, TEFLON 3/8" 1 ST
    Performance Engine Valve Stem Seal Sets

    FAQs for 1978 Dodge Diplomat Performance and Racing Products

    What are the most purchased Performance and Racing Products for the 1978 Dodge Diplomat?

    Out of 75 Performance and Racing Products for the 1978 Dodge Diplomat, the most popular in our inventory are:
    High Performance 180 Degree Thermostat for Increased Flow
    from $26.99
    (20)
    High Performance 180 Degree Thermostat for Increased Flow
    Performance Engine Coolant Thermostats

    What are the top-rated 1978 Dodge Diplomat Performance and Racing Products?

    Top-rated Performance and Racing Products for your 1978 Dodge Diplomat based on customer reviews/ratings are:
    Performer 1405 Carburetor: 600 CFM, 4 Barrel, Square Bore, Manual Choke Inlet
    from $394.99
    (10)
    Performer 1405 Carburetor: 600 CFM, 4 Barrel, Square Bore, Manual Choke Inlet
    “i have delt with every auto parts dealer there is and advance allways treats me like im their only custemer, thanks guys and gals!!!”
    Intake Manifold Bolts
    from $32.09
    (5)
    Intake Manifold Bolts
    “Excellent product.”