1978 Cadillac Seville Performance and Racing Products
Find Your Specific 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 Engines, Performance Suspension Products, Performance Ignition Products 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.
Popular 1978 Cadillac Seville Performance and Racing Products Categories
Essential Performance and Racing Products for 1978 Cadillac Sevilles
B & M – Transmission Kit, Master Overhaul Kit For TH400 (Part No.21041)
from
$409.99
These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.
Product Features:
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Product Features:
- Complete High Perf. Or Racing Trans. Overhaul
- Includes Only OEM Valvebody Gaskets
- Instructions Not Included
B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)
from
$299.99
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
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Product Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
Lakewood – Trans Mount: Urethane-Chevy (Part No.24350)
from
$84.99
Constructed of durable polyurethane to handle the stress oh high horsepower. Absorbs vibration and lasts longer than rubber Features unique built-in safety lock to keep from separating under high torque loads. Ideal for use on street or strip applications. Complete with grade-8 mounting hardware.
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Product Features:
- Durable Polyurethane
- Absorbs Vibration
- Last Longer Than Rubber
- Built-In Safety Lock
Mr. Gasket – Ultra Seal: Head Gasket (Part No.5788G)
from
$75.99
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.
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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
Mr. Gasket – Water Neck (Part No.2557)
from
$27.49
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
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Product Features:
- Complete with o-rings and mounting bolts
- Features an o-ring style seal to prevent water leaks
- Chrome plated
- 1/2″ NPT port can be used for various coolant temp related sensors or switches
B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)
from
$141.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.
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Product Features:
- Recalibrate Auto. Transmission
- Optimum Performance
- Select Your App. Mode
- Improves Transmission Life
- Trans. Removal Not Required
- Downshift At Any Speed
- Great For Trailer Towing
- For Heavy Loads Driving Downhill
Motive Gear – Differential Mini Spool (Part No.MS10-28)
Accel – GM 86-99 Dis Supercoil (Part No.140017)
from
$72.99
Re-engineered to be the only true performance AC/Delco style DIS coil. “”Raised Dome”” construction, section bobbin technology, highly specialized silicone magnetic steel core, optimized windings, resistance, and turns ratio result in higher energy and voltage outputs, and longer dwell. Compatible with OE computer controlled ignition systems as well as Crane or MSD capacitive discharge DIS ignition systems. Brass contact increases energy transfer and resists corrosion better than aluminum. High dielectric strength “”ACCEL Yellow”” over molded housing. Packaged as single unit: 4 cyls require 2 coils, 6 cyls require 3 coils and 8 cyls require 4 coils.
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Product Features:
- 10-15% More Energy
- Direct Plug In Replacement Direct OE Fit
- Advanced Bobbin Technology
- Highly Specialized Silicone Magnetic Steel Cores
- Standard Motor Products SMP Dr-39
- MSD 8224
- Resist Corrosion
Energy Suspension – Tie Rod Dust Boot (Part No.9.13101R)
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.
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Product Features:
- Easy to Install
- Superior Material
- Saves Your Tie Rods
- Lasts Longer
- Looks Great
MSD Ignition – Distributor Cap; GM HEI; Red (Part No.8411)
from
$49.49
The cap of any ignition system must be considered maintenance items. Just as you change the oil and filter of your car, you should always replace the cap. To make things easy, we now offer these caps as replacement kits.
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Product Features:
- Stock GM HEI replacement distributor cap
- Red
Energy Suspension – Ball Joint Dust Boot Set (Part No.9.13128R)
from
$10.99
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.
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Product Features:
- Easy to Install
- Superior Material
- Lasts Longer
- Looks Great
Mr. Gasket – Thermocap Radiator Cap (Part No.2476BK)
from
$48.09
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.
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Product Features:
- Indicates coolant temperature
- Helps prevent coolant injuries
- Fahrenheit and centigrade readings
- Color-coded temperature ranges
- Integrated coolant reclamation valve
- Improves under-hood appearance
- Chromed crown with a colored trim ring
Energy Suspension – Control Arm Bushing Set (Part No.3.3167R)
from
$55.99
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.
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Product Features:
- Maintains Better Alignment While Driving
- Full Floating and Non Binding
- Fits Into the Remaining Stock Control Arms
Energy Suspension – High Performance Sway Bar End Link Kit with Hardware (Part No.9.8117R)
from
$26.99
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.
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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
B & M – Automatic Shifter, Quicksilver 4 Speed (Part No.80683)
from
$439.99
The B&M Quicksilver features a ratcheting action for positive shifts, Chrome Knob, neutral safety switch, NHRA/IHRA approved Reverse Lockout. Fits Most 3 and 4 speeds.
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Product Features:
- Universal Floor Mount Application
- Base Trimmed For Custom Fit
- Cable Operated
- Quick Installation
- Accurate Shifting
Energy Suspension – Control Arm Bushing Set (Part No.3.3167G)
from
$57.99
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:
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Product Features:
- Maintains Better Alignment While Driving
- Full Floating and Non Binding
- Fits Into the Remaining Stock Control Arms
Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)
from
$26.99
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:
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Product Features:
- 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
PerTronix – D9001 Flame-Thrower HEI Distributor Advance Curve Kit (Part No.D9001)
from
$26.99
Mechanical Advance Curve Ki tPrecision machined chromoly weights and center plate eliminate erratic timing. Three sets of springs, guide bushings and complete installation instructions make recurving your distributor easy.
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Product Features:
- PerTronix D9001 Flame-Thrower HEI Distributor Advance Curve Kit
- Precision machined chromoly weights and center plate.
Competition Cams – Thumpr 226/241 Hydraulic Flat Cam (Part No.42-600-5)
from
$324.99
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:
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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.
MSD Ignition – Rotor; GM HEI (Part No.8410)
from
$13.29
Replacement rotor for Chevrolet HEI style distributors.
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Product Features:
- For HEI distributors
- Resist carbon tracking
- Low resistance brass
- Max voltage transfer
- Molded from insulated material
Edelbrock – Universal Performer EFI Dry Systems for 4, 6 And 8 Cylinder Engine (50-70 Hp) (Part No.71006)
from
$926.99Product Features:
- Best Way To Get A Major Power Increase
- Power Increases From 50-70 HP
- Work With Stock ECU
- Simple Installation
- Detailed Instructions
Motive Gear – Performance Differential Ring and Pinion (Part No.G885308)
MSD Ignition – Distributor Cap and Rotor; GM HEI Distributor; Red (Part No.8416)
from
$46.49
The cap and rotor of any ignition system must be considered maintenance items. Just as you change the oil and filter of your car, you should always replace the cap and rotor as a set. To make things easy, we now offer these cap and rotor replacement kits.
Product Features:
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Product Features:
- Designed w/Performance In Mind
- High Quality Material
- Stainless Terminals
- Performance replacement part
Edelbrock – Sure Seat Valve Springs for Ford 429/460 V8 1969-1987 (Part No.5767)
from
$111.99
Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks black oxide coated. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.
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Product Features:
- For Use With Cast Iron Heads
- Springs Made of Highest Quality Spring Wire
- Springs Precision Wound To Close Tolerances
- Use with Original Equipment Heads Only
Edelbrock – Universal Performer Wet to Dry Nitrous Oxide System Conversion Kit (Part No.71884)
from
$266.99
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- Wet To Dry Conversion System
- Hose Included
- Includes Fittings
- Includes Solenoid
- Includes All Necessary Installation Items
Edelbrock – Performer Carb/Plate Nitrous Systems for Spread-Bore (Q-Jet)Carbs (50-75-100 Hp) (Part No.70002)
from
$684.99Product Features:
- Designed For Carbureted V6 And V8 Engines
- Use With Single Or Dual Plane Manifolds
- Power Increases From 50 to 100 HP
- Plate Systems are Easy to Install
- Precision EDM Machined Spray Bars Maximize Flow
- Option of Silver Powder Coated or Polished Bottle
- Recommend Ignition Retard ; Upgraded Fuel System
- Requires Use of Premium Fuel
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 52 Performance and Racing Products for the 1978 Cadillac Seville, designed to meet your needs without breaking the bank.
From
Performance Engine
replacements to
Performance Suspension Products
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 $9.99 to $926.99, with
an average price of $257.94.
Our 52 Performance and Racing Products in stock come from 14 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 MSD Ignition, Energy Suspension, Mr. Gasket, and more.
MSD Ignition Performance and Racing Products
start at just $13.29 and boast an impressive 4 stars average rating from customers.
Energy Suspension and Mr. Gasket also bring quality to the table, with Performance and Racing Products available starting at $9.99, and at an average 4 stars rating.
With 180 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 Engines for 1978 Cadillac Sevilles
Enhance the driving experience in your Cadillac with 12 quality Performance Engine components, starting at $26.99.
B & M – Tork Master 3000 (Part No.20402)
from
$499.99
Torque Converter – Tork Master 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 3000 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 allow steel pump drive tube. Needle thrust bearing when factory equipped. New thrust washer between turbine and cover when required.
Product Features:
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Product Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
- Washer Between Turbine and Cover
B & M – Tork Master 2400 (Part No.20404)
from
$339.99
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:
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Product Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)
from
$26.99
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:
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Product Features:
- 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
Edelbrock – Sure Seat Valve Springs for Ford 429/460 V8 1969-1987 (Part No.5767)
from
$111.99
Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks black oxide coated. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.
Product Features:
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Product Features:
- For Use With Cast Iron Heads
- Springs Made of Highest Quality Spring Wire
- Springs Precision Wound To Close Tolerances
- Use with Original Equipment Heads Only
Mr. Gasket – Water Neck (Part No.2557)
from
$27.49
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
Product Features:
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Product Features:
- Complete with o-rings and mounting bolts
- Features an o-ring style seal to prevent water leaks
- Chrome plated
- 1/2″ NPT port can be used for various coolant temp related sensors or switches
Spectre – Water Neck; Olds (Part No.4733)
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.
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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
Mr. Gasket – Ultra Seal: Head Gasket (Part No.5788G)
from
$75.99
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:
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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
B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)
from
$299.99
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:
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Product Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
B & M – Holeshot 3600 (Part No.20425)
from
$825.99
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:
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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
B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)
from
$665.99
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.
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Product Features:
- 3400-3800 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
B & M – Holeshot 2400 (Part No.20412)
from
$499.99
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:
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Product Features:
- Furnace Brazed Impeller
- Steel Alloy Pump Drive Tube
- Heavy Duty Needle Bearing
- Between Stator and Turbine
- Furnace Brazed Turbine
Competition Cams – Thumpr 226/241 Hydraulic Flat Cam (Part No.42-600-5)
from
$324.99
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:
See More
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.
Most Popular 1978 Cadillac Seville Performance Suspension Products
Customize your Cadillac with 4 Performance Suspension Products products
like Performance Upper Performance Control Arm Bushings,
Performance Lower Control Arm Bushings, and
Performance Ball Joint Boots, all
priced under $107.99.
Energy Suspension – Control Arm Bushing Set (Part No.3.3167R)
from
$55.99
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:
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Product Features:
- Maintains Better Alignment While Driving
- Full Floating and Non Binding
- Fits Into the Remaining Stock Control Arms
Energy Suspension – Ball Joint Dust Boot Set (Part No.9.13128R)
from
$10.99
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:
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Product Features:
- Easy to Install
- Superior Material
- Lasts Longer
- Looks Great
Energy Suspension – Control Arm Bushing Set (Part No.3.3113G)
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:
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Product Features:
- Maintains Better Alignment While Driving
- Full Floating and Non Binding
- Fits Into the Remaining Stock Control Arms
Energy Suspension – Control Arm Bushing Set (Part No.3.3167G)
from
$57.99
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:
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Product Features:
- Maintains Better Alignment While Driving
- Full Floating and Non Binding
- Fits Into the Remaining Stock Control Arms
Top Picks for 1978 Cadillac Seville Performance Ignition Products
Upgrade Cadillac Sevilles with top-quality Performance Ignition Products parts, including 3 OEM and aftermarket selections for your 1978 model.
Accel – GM Hei Supercoil Red/White (Part No.140005)
from
$113.99
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:
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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
MSD Ignition – Mod HEI Dust Cover, V8 & Odd Fire V6 (Part No.8401)
from
$72.99
Stock style replacement modified HEI coil dust cover. Used on 8 cylinder vehicles only.
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Product Features:
- Externally mounted coil
- Increases reliability
- Increase performance
- High quality plastic
- Resist spark loss
- Use brass conductors
- Low resistance connections
- No modifications
Mr. Gasket – HEI Adjustable Vacuum Advance Kit – Includes weights, camplate, and bushings – Improve performance (Part No.6011)
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$55.99
HEI Adjustable Vacuum Advance Kit – Includes weights, camplate, and bushings – Improve performance
In-Demand Performance Distributors for 1978 Cadillac Sevilles
Select from 5 premium Performance Distributors parts for your 1978 Cadillac Seville, with prices ranging from $13.29 to $49.49.
PerTronix – D9001 Flame-Thrower HEI Distributor Advance Curve Kit (Part No.D9001)
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$26.99
Mechanical Advance Curve Ki tPrecision machined chromoly weights and center plate eliminate erratic timing. Three sets of springs, guide bushings and complete installation instructions make recurving your distributor easy.
Product Features:
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Product Features:
- PerTronix D9001 Flame-Thrower HEI Distributor Advance Curve Kit
- Precision machined chromoly weights and center plate.
MSD Ignition – Distributor Cap; GM HEI; Red (Part No.8411)
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$49.49
The cap of any ignition system must be considered maintenance items. Just as you change the oil and filter of your car, you should always replace the cap. To make things easy, we now offer these caps as replacement kits.
Product Features:
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Product Features:
- Stock GM HEI replacement distributor cap
- Red
MSD Ignition – Distributor Cap and Rotor; GM HEI Distributor; Red (Part No.8416)
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$46.49
The cap and rotor of any ignition system must be considered maintenance items. Just as you change the oil and filter of your car, you should always replace the cap and rotor as a set. To make things easy, we now offer these cap and rotor replacement kits.
Product Features:
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Product Features:
- Designed w/Performance In Mind
- High Quality Material
- Stainless Terminals
- Performance replacement part
PerTronix – D9007 Flame-Thrower HEI Distributor 4-Pin Wire Harness/Capacitor (Part No.D9007)
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$30.99
Wiring Harness and CapacitorPremium quality wire harness and capacitor insure good connection and “static free” operation.
Product Features:
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Product Features:
- PerTronix D9007 Flame-Thrower HEI Distributor 4-Pin Wire Harness/Capacitor
- Premium quality wire harness and capacitor.
MSD Ignition – Rotor; GM HEI (Part No.8410)
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$13.29
Replacement rotor for Chevrolet HEI style distributors.
Product Features:
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Product Features:
- For HEI distributors
- Resist carbon tracking
- Low resistance brass
- Max voltage transfer
- Molded from insulated material
Most Sold 1978 Cadillac Seville Performance Steering Products
Explore our best-selling Cadillac parts for the 1978 Seville among 2 OEM and aftermarket options starting from $9.99.
Energy Suspension – High Performance Sway Bar End Link Kit with Hardware (Part No.9.8117R)
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$26.99
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:
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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
Energy Suspension – Tie Rod Dust Boot (Part No.9.13101R)
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$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:
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Product Features:
- 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 MSD Ignition, Energy Suspension, and Mr. Gasket, 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 stars. OEM and aftermarket Performance and Racing Products don’t get more top quality, durable, and affordable than from the brands below.
Popular MSD Ignition 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. MSD Ignition ticks all of those boxes. We offer a wide selection of MSD Ignition Performance and Racing Products, specifically designed for the 1978 Cadillac Seville. With over 4 MSD Ignition 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 $13.29, with an average price of just $45.57. Plus, with over 50 customer reviews and an average rating of 4 stars, you can trust that our MSD Ignition 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
$49.49
$49.49
(1)
“This Distibutor Cap kit came with the Rotor and replacement bushings. Both the high resistance one and the low resistance one. The factory HEI coil bo”
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 8 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 $107.99, plus, with more than 27 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Performance and Racing Products below will deliver on both quality and value.
FAQs for 1978 Cadillac Seville Performance and Racing Products
Which Performance and Racing Products are best-sellers for 1978 Cadillac Sevilles?
Out of 52 Performance and Racing Products that fit 1978 Cadillac Sevilles, the following parts are the top sellers:
- High Performance Transmission Mount for Street & Racing Vehicles (16360003) – $41.99
- High Performance 180 Degree Thermostat for Increased Flow (17360033) – $26.99
- High Performance Sway Bar End Link Kit with Hardware (16360004) – $26.99
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 $9.99 and go up to $926.99 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 $257.94. 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?
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:
- Tie Rod Dust Boot (17360821) – $9.99
- Ball Joint Dust Boot Set (22906820) – $10.99
- Rotor; GM HEI (17350190) – $13.29
- High Performance 180 Degree Thermostat for Increased Flow (17360033) – $26.99
- High Performance Sway Bar End Link Kit with Hardware (16360004) – $26.99
What are the top-rated Performance and Racing Products that fit the 1978 Cadillac Seville?
Out of 180 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 Transmissions
- High Performance Transmission Mount for Street & Racing Vehicles (16360003) – $41.99
What types of Performance and Racing Products do you sell for my 1978 Cadillac Seville?
As of 2/5/25, 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.
