1978 Cadillac Seville Performance and Racing Products

Below you will find various in-demand Cadillac Performance and Racing Products, components and accessories for your 1978 Seville. Advance Auto Parts has popular Seville parts like Performance Air Filters, Performance Oil Filters, Performance Engines and more. You’ll also find aftermarket and OEM Performance and Racing Products for other Seville model years including 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004 and more. Select a category of 1978 Cadillac Seville Performance and Racing Products below and start saving instantly.

Please Select your Vehicle to See Exact Fit Parts

Popular 1978 Cadillac Seville Performance and Racing Products Categories

Performance Oil Filters

Performance Engine Coolant Thermostats

Performance Intake Manifolds

Performance Air Filters

Performance Coils

Performance Shifters

Performance Distributors

Performance Engine and Transmission Mounts

Performance Water Outlets

Performance Engine Cylinder Head Gaskets

Performance Engine Camshaft and Lifter Kits

Performance Distributor Components

Performance Engine Timing Sets and Components

Performance Engine Valve Springs

Performance Flywheel and Flexplates

Performance Posi Units and Components

Performance Upper Performance Control Arm Bushings

Performance Engine Rocker Arms

Performance Engine Camshafts

Performance Ring and Pinions

Performance Sway Bar Link Kits

Performance Lower Control Arm Bushings

Performance Engine Valve Lifters

Performance Brake Bleeders

Performance Tie Rod End Boots

Performance Ball Joint Boots

Performance Engine Push Rods

Performance Engine Valve Spring Retainer

Performance Torque Converters

Performance Alternator or Generators

Essential Performance and Racing Products for 1978 Cadillac Sevilles

from

$249.99

These High Energy Die Cast Aluminum Roller Rocker Arms for Chevy V8 265-400 applications are perfect for street and moderate race use. With a 3/8″ stud diameter and 1.5 ratio, the die cast, larger-than-stock body of the rocker arms is made of aluminum for superior strength with light overall weight. High Energy Die Cast Aluminum Roller Rocker Arms from COMP Cams are an affordable option that feature a die cast, aluminum body with a needle bearing fulcrum and roller tip. Designed to be stiffer and more durable, these cost effective rocker arms are capable of providing added valve lift while withstanding the rigors of a performance application. Their specially engineered fulcrum and roller tip create far less friction than sliding factory models to lower oil temperatures, thus improving both response and horsepower. Snap rings are used to hold the trunion and bearings locked in place..

Product Features:

Cost effective aluminum construction provides superior strength to weight ratio
Needle bearing fulcrum and roller tip reduce friction and lower oil temperatures for improved response and horsepower
Durable design increases valve lift while withstanding the rigors of moderate race use
Die-formed aluminum body is larger than stock, and may require modifications to stock valve covers for clearance.

from

$107.99

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

from

$527.99

The B&M Megashifter has it all, form, function and classic style. This all adds up to bring you a quality shifter that’s been one of the most popular automatic shifters of all time. The light truck Megashifter is better suited for truck and bench seat applications with its overall height of 14.85-inches tall (2.25-inches taller than #80690 Megashifter.) The positive ratcheting action won’t allow you to over-shift and miss a gear at that critical moment, along with the reverse lockout feature meets NHRA/IHRA safety rules for those weekend grudge races at the track, while the look and feel of the T-handle and accordion style shift boot really shows off its racing heritage. Other features include a black console that you can trim to match the contour of your vehicle’s floor, 5-foot long shifter cable, cable brackets, transmission shift levers, chrome plated top plate with lighted gear indicator and everything needed for an easy at home installation. An optional T-handle with a 12-volt button is available separately for actuating a trans-brake, nitrous oxide or other accessories for the hard-core performance enthusiast. This shifter fits most popular Chrysler, Ford and GM 3 and 4-speed automatic transmissions. Note: AOD transmissions require optional kit #40496, GM 4L60E through 4L85E transmissions with PRNDL switch will require optional kit #70499. Overall Dimensions – 14.9L x 6.4W x 14.8H

Product Features:

Universal Floor Mount Application
Cable Operated
Quick Installation
Accurate Shifting
NHRA/IHRA Reverse Lockout Meets Requirements
Use w/Reverse Pattern Valve Body
Includes Neutral Safety Switch
Includes Backup Light Switch

from

$123.99

Engineered for higher energy output resulting in quicker starting, improved idle quality, crisper throttle response and more high RPM power. Compatible with both original HEI ignition systems and later model computer controlled HEI systems. No need to remove or re-time distributor. Complete with simplified ground strap, mounting screws, silicone coil gasket and carbon contact brush / spring.

Product Features:

10-15% More Energy
Direct Plug In Replacement Direct OE Fit
Advanced Bobbin Technology
Highly Specialized Silicone Magnetic Steel Cores
Similar to Standard Motor Products SMP Dr-32
Long Life And Great Looks

from

$9.99

Repair torn and worn-out boots of suspension tie rod ends – without having to buy the entire and expensive tie rod. Adds durability surpassing most OEM rubber boots. Exclusive 5 point sealing action. Choose from four sizes and round or octagon styles. Made of Energy’s Hyper-Flex performance polyurethane for added performance and durability.

Product Features:

Easy to Install
Superior Material
Lasts Longer
Looks Great

from

$79.99

Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.130 inch, Compressed thickness 0.055 inch

Product Features:

Five layer (graphite core/perforated steel outer layers) composite construction
Graphite core is excellent transfering heat away from hot spots in head preventing gasket burn-out.
Provides excellent stability, compressibility and high temperature endurance
Coated with high temperature silicone to ensure sealing of engine fluids
Will not brinell (indent) aluminum cylinder heads
For high performance street, drag race and oval track use
Compatible w/High Octane Fuel
Compatible With Exotic Fuel

from

$343.99

Product Features:

GM 10BL 8.5 R/P 4.56 FRT/REAR MGP

from

$33.99

Wiring Harness and CapacitorPremium quality wire harness and capacitor insure good connection and “static free” operation.

Product Features:

PerTronix D9007 Flame-Thrower HEI Distributor 4-Pin Wire Harness/Capacitor
Premium quality wire harness and capacitor.

from

$17.99

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Product Features:

HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
EASY TO REMOVE: Fast and easy Wrench-Off removal
HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers

from

$649.99

Cadillac cruisers will be excited about this new Pro-Billet distributor for the 368, 425, 472 and 500 cubic inch engines. The distributor begins life as a billet of 6061-T6 aluminum before being CNC-machined to precise dimensions. The sturdy, flex-free housing is fitted with a sealed ball-bearing and long sintered bushing for high-rpm accuracy. MSD’s race proven magnetic pick-up supplies a trigger signal that is accurate to within one degree at any RPM. Mounted above this pick-up is an adjustable mechanical advance and is supplied with different springs and stop bushings for a number of curves. For street cruising economy, as if there’s any such thing in a caddy, there is a vacuum advance canister.

Product Features:

Designed for Cadillac 368/425/472 and 500 ci. engines
Must Be Used w/An MSD Ignition Control
Supplied w/HEI style distributor cap/rotor (accepts Cap-A-Dapts)
Special oil tract improves lubrication to the dist./cam gear
Mech. advance assem. can be locked out for crank trigger systems
QPQ coated polished steel shaft; guided by sealed ball bearings
Maintenance-free magnetic pickup and precision reluctor
Creates stable trigger signals throughout the rpm range
CNC machined billet aluminum housing and billet aluminum base
Vacuum advance canister for improved economy (can be locked out)
Easy-to-adjust mech. advance w/supplied springs and stop bushings
CARB E.O. Approved

from

$481.99

Product Features:

Best for the Ultimate in Street High-Performance
Designed Idle to 5500 RPM Street-Driven Power
Dual-Plane High-Rise Intake w/180 deg Firing Order
Produces Incredible Top-End Horsepower
Retains Good Throttle Response and Acceleration
Larger Plenum and Runners Maximizes Other Upgrades
Edelbrock Total Power Package Maximizes Gains

from

$899.99

HoleShot 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot c

Product Features:

Furnace Brazed Impeller
Steel Alloy Pump Drive Tube
Heavy Duty Needle Bearing
Between Stator and Turbine
Furnace Brazed Turbine

from

$29.49

Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:

Opens at 160 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully opens at Correct Temperature Consistently Regardless of engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

from

$311.99

The Mr. Gasket chrome alternator is a high-performance, remanufactured solution designed to exceed original equipment specifications, ensuring maximum dependability for your vehicle. With an 80-amp output and a sleek chrome-plated finish, this GM 10SI style alternator is both functional and visually appealing. It fits most 1973-1983 GM vehicles, making it a versatile replacement option. The alternator features a 6.6″ bolt spacing, an internal regulator for efficient voltage control, and a 1-groove V-belt pulley included for easy installation. Operating at 12 volts, it can be used as a direct OE replacement or as a 1-wire alternator, offering flexibility to suit your needs. Built for durability and reliability, this alternator is an excellent choice for restoring or upgrading your vehicle’s electrical system.

Product Features:

Fits Most 1973-1983 GM Vehicles
Bolt Spacing 6.6″
80 Amps
GM 10SI Style Alternator
Chrome Plated Finish
1-Groove V-belt pulley – included
Internal Regulator

from

$742.99

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$124.99

Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Product Features:

For over 80-years, the Richmond Double-Diamond logo has represented some of the highest quality gears in the racing industry. Winners Run Richmond!
The superior quality of Richmond gearsets is a result of outstanding design, world class manufacturing and an extensive testing process that is performed on all products.
Richmond performance gearsets have been winners for decades at: NHRA, NMRA, NMCA, Daytona 500, WISSOTA and U.S. Nationals.
Richmond Gear is a leading manufacturer of high performance ring and pinion gearsets and drivetrain components, backed by a two year warranty.
Engineered to perform faster and be more reliable, Richmond performance drivetrain products are the result of a continuous research and development program combined with state-of-the-art manufacturing capabilities.

from

$341.99

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$29.99

Made of high durometer, very firm, Hyper-Flex performance polyurethane. They’re economical, increase efficiency and are easy to install. Use Energy Suspension sway bar end links with sway bar bushings to get the maximum performance benefit. Combine both for the same effect as buying a larger sway bar. Together they offer a dramatic improvement in performance and handling.

Product Features:

Made from HYPER-Flex Polyurethane
Allows Vehicle to Work At Maximum Efficiency
Easy to Install
Superior Performance and Greater Longevity
Lasts Much Longer Than OEM Rubber End Links

from

$169.99

As performance levels increase, an O.E. style flexplate just won’t cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance flexplate designed for 1955-85 GM small block (internally balanced) V8 engines along with 4.3L V6 engines. Also fits 1990 and earlier GM big block (internally balanced) V8 engines with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5 inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.

Product Features:

NHRA/IHRA Legal For All Classes
Includes SFI Certification Sticker
Ideal For Street Applications
To Extreme Duty Racing
To High RPM Use

from

$61.99

Maintains Better Alignment While Driving
Full Floating and Non Binding
Fits Into the Remaining Stock Control Arms

from

$97.99

A true performance application component for cars, trucks, hot rods, racing/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:

Unique Safety Interlock Design
Impervious to Vehicle Oils and Chemicals
Strong Enough Too Handle High Performance

from

$42.99

Unique Safety Interlock Design
Impervious to Vehicle Oils and Chemicals
Strong Enough Too Handle High Performance

from

$9.99

Easy to Install
Superior Material
Saves Your Tie Rods
Lasts Longer
Looks Great

from

$9.99

Easy to Install
Superior Material
Saves Your Tie Rods
Lasts Longer
Looks Great

from

$83.99

K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable and engineered to last for the entire lifespan of your vehicle. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N’s most popular product!

Product Features:

REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
EASY INSTALLATION: K&N Air Filters are pre-oiled 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
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

from

$42.99

Spectre’s High Performance Replacement Air Filters are engineered to outperform ordinary paper filters by providing increased air flow for improved performance. Manufactured using high quality materials including pre-dyed synthetic media, urethane, and steel mesh, this performance air filter is factory pre-oiled and ready to use. Use a Spectre Accucharge cleaning and re-oiling kit, part number HPR4820, to maintain your filter’s condition.

Product Features:

Designed to be superior to stock paper filters
Comes pre-oiled
Designed for an easy installation with OE fit
Made with pre-dyed media for lasting color

Upgrade your 1978 Cadillac Seville with Top-Quality Performance and Racing Products

When it comes to maintaining or upgrading your 1978 Cadillac Seville, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Cadillac or enhancing its overall performance, Performance and Racing Products are key to keeping your Seville functioning at its best. At Advance Auto Parts, we offer a wide selection of 67 Performance and Racing Products for the 1978 Cadillac Seville, designed to meet your needs without breaking the bank. From Performance Air Filter replacements to Performance Oil Filters upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Performance and Racing Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Performance and Racing Products for your 1978 Cadillac Seville at great prices. Our Performance and Racing Products inventory for this model ranges from just $7.99 to $949.99, with an average price of $266.63. Our 67 Performance and Racing Products in stock come from 15 trusted brands, so you’re sure to find the right part for your 1978 Cadillac Seville without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1978 Cadillac Seville, we stock popular OEM and aftermarket Performance and Racing Products from top names like K&N, Energy Suspension, B & M, and more. K&N Performance and Racing Products start at just $17.99 and boast an impressive 4.8 stars average rating from customers. Energy Suspension and B & M also bring quality to the table, with Performance and Racing Products available starting at $9.99, and at an average 4.4 stars rating. With 190 customer reviews and counting, our 1978 Cadillac Seville Performance and Racing Products have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Performance and Racing Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 1978 Cadillac Seville is always ready to roll. We’re committed to providing you with everything you need to keep your Seville in top shape, all in one place. Start shopping confidently below for your 1978 Cadillac Seville!

Best-Selling Performance Air Filters for 1978 Cadillac Sevilles

Enhance the driving experience in your Cadillac with 1 quality Performance Air Filter components, starting at $83.99.

show more show less

from

$83.99

REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
EASY INSTALLATION: K&N Air Filters are pre-oiled 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
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

Most Popular 1978 Cadillac Seville Performance Oil Filters

Customize your Cadillac with 1 Performance Oil Filters products like Performance Oil Filters, all priced under $17.99.

show more show less

from

$17.99

K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. Designed to operate with all synthetic, conventional, and blended motor oils, K&N’s pleated synthetic-blend filtration media helps to shield your engine from contaminants and ensure a consistent flow of oil. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Product Features:

HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
EASY TO REMOVE: Fast and easy Wrench-Off removal
HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers

Top Picks for 1978 Cadillac Seville Performance Engines

Upgrade Cadillac Sevilles with top-quality Performance Engines parts, including 31 OEM and aftermarket selections for your 1978 model.

show more show less

from

$373.99

Torque Converter – Tork Master 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost performance torque converter. The Tork Master is an excellent all-around performance street converter. The best value priced street converters available, Tork Master converters come with a new precision pump drive tube and all are pressure tested and fully balanced. The Tork Master torque converter is not recommended for big block or supercharged applications. New alloy steel pump drive tube. Needle thrust bearing when factory equipped. New thrust washer between turbine and cover when required. Due to torque converter core availability, the actual converter size may vary but performance functionality will be as advertised.

Product Features:

New Precision Pump Drive Tube
Pressure Tested
Fully Balanced
Needle Thrust Bearing
New Thrust Washer

from

$29.99

Opens At 180 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

from

$29.49

Opens at 160 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully opens at Correct Temperature Consistently Regardless of engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

from

$31.99

Opens At 195 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

from

$26.99

Spectre’s Oldsmobile V8 water neck fits Oldsmobile 330, 350, 425 and 455 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 has an additional by-pass hose connection and includes the bolts.

Product Features:

Fits Oldsmobile 330, 350, 425 and 455 engines
Chrome plated
Bolts included
Designed for OEM fit
Easy to install
O-ring/gasket not included

from

$481.99

Product Features:

Best for the Ultimate in Street High-Performance
Designed Idle to 5500 RPM Street-Driven Power
Dual-Plane High-Rise Intake w/180 deg Firing Order
Produces Incredible Top-End Horsepower
Retains Good Throttle Response and Acceleration
Larger Plenum and Runners Maximizes Other Upgrades
Edelbrock Total Power Package Maximizes Gains

from

$87.99

Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.230 inch, Compressed thickness 0.038 inch

Product Features:

Five layer (graphite core/perforated steel outer layers) composite construction
Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out
Provides excellent stability, compressibility and high temperature endurance
Coated with high temperature silicone to ensure sealing of engine fluids
Will not brinell (indent) aluminum cylinder heads
For high performance street, drag race and oval track use
Compatible w/High Octane Fuel
Compatible With Exotic Fuel

from

$329.99

Torque Converter – Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost

Product Features:

New Precision Pump Drive Tube
Pressure Tested
Fully Balanced
Needle Thrust Bearing
New Thrust Washer

from

$471.99

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$949.99

HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages and benefits in vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low end power and torque. The high stall converter allows the engine to launch the car at higher rpm where more torque is available. The Holeshot is generally a very good choice for the typical street machine that is looking for better launch capability and more strength. Street rods with modified engines will also benefit from a Holeshot converter. If your vehicle is equipped with a plate type nitrous system, you will need a Nitrous Holeshot!! Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Furnace brazed impeller. New precision steel alloy pump drive tube. New heavy duty needle bearing between stator and impeller (not a thrust washer). Needle bearing between stator and turbine. Furnace brazed turbine. Dual pattern drive lugs on some GM Holeshots. New turbine hub. New springs and rollers in stator.

Product Features:

Furnace Brazed Impeller
Steel Alloy Pump Drive Tube
Heavy Duty Needle Bearing
Between Stator and Turbine
Furnace Brazed Turbine
Dual Pattern Drive Lugs
New Turbine Hub
New Springs/Rollers In Stator

from

$899.99

Furnace Brazed Impeller
Steel Alloy Pump Drive Tube
Heavy Duty Needle Bearing
Between Stator and Turbine
Furnace Brazed Turbine

from

$899.99

Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.

Product Features:

2800-3200 RPM
Small And Big Blocks
Serious Performance
Furnace Brazed
Fully Balanced

from

$749.99

3400-3800 RPM
Small And Big Blocks
Serious Performance
Furnace Brazed
Fully Balanced

from

$742.99

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$549.99

HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) Application: HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot c

Product Features:

Furnace Brazed Impeller
Steel Alloy Pump Drive Tube
Heavy Duty Needle Bearing
Between Stator and Turbine
Furnace Brazed Turbine

from

$399.99

ENG ROCKER ARM KIT

from

$341.99

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$341.99

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$341.99

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

from

$277.99

ENGINE ROCKER ARM

from

$241.99

ENGINE ROCKER ARM

from

$148.99

HIGH ENRGY ALUM ROCK

from

$141.99

Engine Valve Spring Kit

from

$85.99

ENGINE TIMING SET

In-Demand Performance Ignition Products for 1978 Cadillac Sevilles

Select from 1 premium Performance Ignition Products parts for your 1978 Cadillac Seville.

show more show less

from

$123.99

10-15% More Energy
Direct Plug In Replacement Direct OE Fit
Advanced Bobbin Technology
Highly Specialized Silicone Magnetic Steel Cores
Similar to Standard Motor Products SMP Dr-32
Long Life And Great Looks

Most Sold 1978 Cadillac Seville Performance Steering Products

Explore our best-selling Cadillac parts for the 1978 Seville among 3 OEM and aftermarket options starting from $9.99.

show more show less

from

$29.99

Made from HYPER-Flex Polyurethane
Allows Vehicle to Work At Maximum Efficiency
Easy to Install
Superior Performance and Greater Longevity
Lasts Much Longer Than OEM Rubber End Links

from

$9.99

Easy to Install
Superior Material
Saves Your Tie Rods
Lasts Longer
Looks Great

from

$9.99

Easy to Install
Superior Material
Saves Your Tie Rods
Lasts Longer
Looks Great

Top-Rated Performance and Racing Products Brands For Your 1978 Cadillac Seville

Shop for the best-rated brands offering Performance and Racing Products and other products for your 1978 Cadillac Sevilles. Below you’ll find some of our best rated Performance and Racing Products from K&N, Energy Suspension, and B & M, and more. Performance and Racing Products from these brands that fit a 1978 Seville start at just $9.99 and are rated as high as 4.8 stars. OEM and aftermarket Performance and Racing Products don’t get more top quality, durable, and affordable than from the brands below.

Popular K&N 1978 Cadillac Seville Performance and Racing Products

When it comes to maintaining or upgrading your 1978 Cadillac Seville, using quality Performance and Racing Products is essential to ensure durability and a perfect fit. K&N ticks all of those boxes. We offer a wide selection of K&N Performance and Racing Products, specifically designed for the 1978 Cadillac Seville. With over 2 K&N brand Performance and Racing Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $17.99, with an average price of just $50.99. Plus, with over 63 customer reviews and an average rating of 4.8 stars, you can trust that our K&N Performance and Racing Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

from $83.99

(14)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

“Great product as usual from K&N!!”

from $17.99

(49)

Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine

“Perfect.”

Popular Energy Suspension 1978 Cadillac Seville Performance and Racing Products

Energy Suspension auto parts is one of the highest quality Performance and Racing Product brands in the market. Any 1978 Cadillac Seville owner should feel confident when installing genuine Energy Suspension parts in their vehicle. To ensure the best fit and performance for your 1978 Seville, Advance Auto Parts carries a full inventory of 3 Energy Suspension Performance and Racing Products. Plus you will be keeping your Cadillac in peak condition while saving money because prices on these Energy Suspension Performance and Racing Products range from $9.99 to $40.99, plus, with more than 11 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Performance and Racing Products below will deliver on both quality and value.

from $29.99

(7)

High Performance Sway Bar End Link Kit with Hardware

“A +++++++++++++++”

from $40.99

(1)

Motor Mount

“I got this for my 1987 camaro. I had replaced the factory one with another fatory replacement, 4 days later it ripped in half. So I went in and got th”

from $9.99

(3)

Tie Rod Dust Boot

“Replaced the old torn boot and added a bit of color for a low cost.”

FAQs for 1978 Cadillac Seville Performance and Racing Products

Which Performance and Racing Products are best-sellers for 1978 Cadillac Sevilles?

Out of 67 Performance and Racing Products that fit 1978 Cadillac Sevilles, the following parts are the top sellers:

High Performance 180 Degree Thermostat for Increased Flow (17360033) – $29.99
High Performance Thermostat – 160 Degree Brass & Copper (17360031) – $29.49
High Performance Thermostat (22903641) – $31.99

What’s the price range for 1978 Cadillac Seville Performance and Racing Products?

Performance and Racing Product prices for the 1978 Cadillac Seville start at $7.99 and go up to $949.99 for the most premium parts.

What’s the average price of a Performance and Racing Product for a 1978 Cadillac Seville?

The average price for Performance and Racing Products for the 1978 Cadillac Seville is $266.63. Keep in mind the variety of part types within our Performance and Racing Product category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance and Racing Products for other Cadillac Seville model years?

Yes, we currently carry Performance and Racing Products for 27 model years of Cadillac Sevilles between 1976 and 2004. Performance and Racing Products are bought most frequently for the following model years: 2004, 2003, 2002, 2001, 1999, 1998, 1997, 1996, and 1995.

What are the cheapest Performance and Racing Products for my 1978 Cadillac Seville?

The cheapest 1978 Cadillac Seville Performance and Racing Products we carry in stock are:

High Energy 8.234" Long, 5/16" Diameter Pushrod (50289288) – $7.99
Tie Rod Dust Boot (17360821) – $9.99
Tie Rod Dust Boot (22906874) – $9.99
Ball Joint Dust Boot Set (22906820) – $9.99
10 Degree Superlock Steel Retainer for 1.437"-1.500" OD Valve Spring (50289470) – $10.99

What are the top-rated Performance and Racing Products that fit the 1978 Cadillac Seville?

Out of 190 reviews by customers, our 1978 Cadillac Seville Performance and Racing Products have an average customer rating of . These are some of the highest-rated Performance and Racing Product types for the 1978 Cadillac Seville and their top-rated products:

Performance Air Filters
- Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (6278213) – $83.99
Performance Oil Filters
- Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (6278213) – $83.99
Performance Steering Products
- Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (6278213) – $83.99

What types of Performance and Racing Products do you sell for my 1978 Cadillac Seville?

As of 11/2/25, these are some of the most in-demand types of Performance and Racing Products for a 1978 Cadillac Seville:

Can I get help with 1978 Cadillac Seville Performance and Racing Product orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Cadillac Performance and Racing Products and more.

What is your return policy for Cadillac Seville Performance and Racing Products?

Advance Auto Parts keeps returns simple. For new Cadillac Seville Performance and Racing Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1978 Cadillac Seville Performance and Racing Products

Competition Cams – High Energy Aluminum 1.5 Ratio Roller Rocker Set for SBC 265-400 w/ 3/8" Stud (Part No.17001-16)

Energy Suspension – Control Arm Bushing Set (Part No.3.3113R)

B & M – Automatic Shifter, Light Truck Megashifter (Part No.80680)

Accel – GM Hei Supercoil Red/White (Part No.140005)

Energy Suspension – Ball Joint Dust Boot Set (Part No.9.13128R)

Mr. Gasket – Ultra Seal: Head Gasket (Part No.5799G)

Motive Gear – Performance Differential Ring and Pinion (Part No.G885456)

PerTronix – D9007 Flame-Thrower HEI Distributor 4-Pin Wire Harness/Capacitor (Part No.D9007)

K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-1001)

MSD Ignition – Distributor; Cadillac V8 with Vacuum Advance (Part No.8363)

Edelbrock – Performer Small Block Oldsmobile 350 Intake Manifold (Part No.7111)

B & M – Holeshot 3000 (Part No.20413)

Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

Mr. Gasket – Alternator: Remanufactured, 80 Amps (Part No.5122)

Competition Cams – Thumpr 226/241 Hydraulic Flat Cam K-Kit (Part No.K42-600-5)

Richmond Gear – Differential Mini Spool (Part No.78-1028-1)

Competition Cams – Mutha’ Thumpr 234/249 Hydraulic Flat Cam (Part No.42-601-5)

Energy Suspension – High Performance Sway Bar End Link Kit with Hardware (Part No.9.8117R)

B & M – Flexplate, SFI 29.1 Approved, Fits 168-Tooth, 2-Piece Rear Main Seal, Chevy V8 (Part No.20230)

Energy Suspension – Control Arm Bushing Set (Part No.3.3167G)

Energy Suspension – Transmission Mount (Part No.3.1132R)

Energy Suspension – Transmission Mount (Part No.3.1108R)

Energy Suspension – Tie Rod Dust Boot (Part No.9.13101R)

Energy Suspension – Tie Rod Dust Boot (Part No.9.13102G)

K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.E-1650)

Spectre – Spectre Replacement Air Filter (Part No.HPR6479)

K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.E-1650)

K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-2006)

B & M – Tork Master 2400 (Part No.20404)

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

Mr. Gasket – High Performance Thermostat (Part No.4365)

Spectre – Water Neck; Olds (Part No.4733)

Edelbrock – Performer Small Block Oldsmobile 350 Intake Manifold (Part No.7111)

Mr. Gasket – Ultra Seal: Head Gasket (Part No.5788G)

B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)

Competition Cams – Thumpr 226/241 Hydraulic Flat Cam and Lifter Kit (Part No.CL42-600-5)

B & M – Holeshot 3600 (Part No.20425)

B & M – Holeshot 3000 (Part No.20413)

B & M – Torque Converter, Nitrous Holeshot 3000 (Part No.20481)

B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)

Competition Cams – Thumpr 226/241 Hydraulic Flat Cam K-Kit (Part No.K42-600-5)

B & M – Holeshot 2400 (Part No.20412)

Competition Cams – ENG ROCKER ARM KIT (Part No.1441-KIT)

Competition Cams – Mutha’ Thumpr 234/249 Hydraulic Flat Cam (Part No.42-601-5)

Competition Cams – Big Mutha’ Thumpr 242/257 Hydraulic Flat Cam (Part No.42-602-5)

Competition Cams – Thumpr 226/241 Hydraulic Flat Cam (Part No.42-600-5)

Competition Cams – ENGINE ROCKER ARM (Part No.17044-16)

Competition Cams – ENGINE ROCKER ARM (Part No.1442-16)

Competition Cams – HIGH ENRGY ALUM ROCK (Part No.17044-8)

Competition Cams – Engine Valve Spring Kit (Part No.995-16)

Competition Cams – ENGINE TIMING SET (Part No.2113)

Accel – GM Hei Supercoil Red/White (Part No.140005)

Energy Suspension – High Performance Sway Bar End Link Kit with Hardware (Part No.9.8117R)

Energy Suspension – Tie Rod Dust Boot (Part No.9.13101R)

Energy Suspension – Tie Rod Dust Boot (Part No.9.13102G)