1978 Cadillac Fleetwood Performance Engines

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Keep Your 1978 Cadillac Fleetwood in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1978 Cadillac Fleetwood looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Water Outlets, Performance Intake Manifolds, and Performance Engine Valve Stem Seal Sets. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like B & M. For example, B & M Performance Engines start at just $382.99 with an average 4.3 star rating. With over 10 reviews and a solid 5 star average, you can shop with confidence knowing other Cadillac Fleetwood owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1978 Cadillac Fleetwood Performance Engine at Advance Auto Parts is around $358.12, with a range that starts at $10.99 and goes up to $972.99. With 16 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like O-Ring Style Chrome Water Neck, Intake Manifold Bolts, and VALVE SEALS, 11/32" TEFLON 1 ST start at just $30.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Distributors and Performance Fuel Systems. At Advance Auto Parts, we’re here to help you keep your 1978 Cadillac Fleetwood in peak condition, inside and out.

Essential 1978 Cadillac Fleetwood Performance Engines

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

Water Neck; Olds

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
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Mr. Gasket – O-Ring Style Chrome Water Neck (Part No.2557)

O-Ring Style Chrome Water Neck

from

$32.49
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:
  • 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
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Competition Cams – VALVE SEALS, 11/32" TEFLON 1 ST (Part No.503-16)

VALVE SEALS, 11/32" TEFLON 1 ST

from

$223.99
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 11/32″ 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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Competition Cams – Valve Seals, Umbrella 11/32" 1 St (Part No.502-16)

Valve Seals, Umbrella 11/32" 1 St

from

$230.99
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 stock guides and 11/32″ 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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Edelbrock – Performer Intake Manifold for 1987-95 Small Block Chevy, Satin Finish (Part No.2104)

Performer Intake Manifold for 1987-95 Small Block Chevy, Satin Finish

from

$346.99


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
  • Accepts Late-Model Choke; Waterneck; and HEI
  • Accepts A/C And Alternator
  • Accepts Exhaust Heated Chokes
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Edelbrock – Performer Buick 3.8L, 4.1L V6 Intake Manifold (Part No.5486)

Performer Buick 3.8L, 4.1L V6 Intake Manifold

from

$401.99


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
  • Not for C-3 and C-4 Electronic Fuel Mngmt Systems
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Edelbrock – Performer Intake Manifold for 1987-95 Small-Block Chevy, Black Finish (Part No.21043)

Performer Intake Manifold for 1987-95 Small-Block Chevy, Black Finish

from

$487.99
Edelbrock part #21043 Performer intake manifold is designed for street 262-400 c.i.d. Chevy V8’s that have heads with canted center bolt holes, 1987-1995. This Manifold accepts late-model water neck, air-conditioning, alternator, H.E.I., has rear water cr

Product Features:
  • Idle-5500 RPM Range
  • Dual Plane Type-4150 Style Flange
  • 3.5 in. Front Height, 4.05 in. Center Height, 4.6 in. Rear Height
  • Black Powder Coated Finish
  • Made In The USA
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Mr. Gasket – Intake Manifold Bolts (Part No.957G)

Intake Manifold Bolts

from

$30.49
These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes sixteen (16) 3/8 inch-16 x 1-1/4 inch bolts & washers

Product Features:
  • Zinc plated Grade 5 steel
  • Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
  • Ideal For Minimal Space
  • 12-Point Head And Flange
  • Zinc Plated For Protection
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B & M – Tork Master 2400 (Part No.20404)

Tork Master 2400

from

$382.99
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
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B & M – Tork Master 3000 (Part No.20402)

Tork Master 3000

from

$562.99
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:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
  • Washer Between Turbine and Cover
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B & M – Holeshot 2400 (Part No.70419)

Holeshot 2400

from

$686.99
HoleShot 2400 for GM 1993 to 1996 TH700R4 (30 spline) and 1984 to 1993 4L60E (30 spline) Application: HoleShot 2400 for GM 1993 to 1996 TH700R4 (30 spline) and 1984 to 1993 4L60E (30 spline) 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
  • New Turbine Hub
  • New Springs/Rollers In Stator
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B & M – Holeshot 2400 (Part No.70441)

Holeshot 2400

from

$819.99
Holeshot 2400 for GM 1998 to 2002 4L60E Camaro and Firebird with an LS1 engine Application: GM 1998 to 2002 4L60E Camaro and Firebird with LS1 A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages and benef

Product Features:
  • Furnace Brazed Impeller
  • Steel Alloy Pump Drive Tube
  • Heavy Duty Needle Bearing
  • Between Stator and Turbine
  • Furnace Brazed Turbine
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Competition Cams – Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6 (Part No.875-1)

Reduced Travel OE-Style Hydraulic Roller Lifter for '87+ SBC, LT/LS and V6

from

$39.99
Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6

Competition Cams – Magnum 215/215 Hydraulic Roller Cam For Oe Roller Sbc (Part No.08-420-8)

Magnum 215/215 Hydraulic Roller Cam For Oe Roller Sbc

from

$611.99
Mild street performance, slightly noticeable idle. Needs aftermarket intake, headers, 3.40-4.10 gears.

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

Mutha' Thumpr 234/249 Hydraulic Flat Cam

from

$341.99
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.
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Competition Cams – Xtreme Energy Computer Controlled 212/218 Hydraulic Roller Cam For Oe Roller Sbc (Part No.08-501-8)

Xtreme Energy Computer Controlled 212/218 Hydraulic Roller Cam For Oe Roller Sbc

from

$611.99
The COMP Cams 08-501-8 Xtreme Energy Hydraulic Roller Camshaft is designed to deliver aggressive performance gains while maintaining excellent street manners, making it a top choice for small block Chevy enthusiasts.
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Competition Cams – High Energy 212/212 Hydraulic Flat Cam (Part No.42-228-4)

High Energy 212/212 Hydraulic Flat Cam

from

$297.99
Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications.

Product Features:
  • Good blend of efficiency and performance.
  • Perfect choice for performance street rebuilds.
  • Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.
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Competition Cams – Magnum/Marine/Magnum Muscle 230/230 Hydraulic Flat Cam (Part No.42-231-4)

Magnum/Marine/Magnum Muscle 230/230 Hydraulic Flat Cam

from

$297.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.

Product Features:
  • Best with aftermarket torque converters and 9.5:1 compression.
  • Great high RPM power.
  • Easy on valve train parts.
  • Can be used with mild ratio rocker arms and traditional performance valve springs.
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Competition Cams – 10 Degree Steel Retainer for 26120 Beehive Spring (Part No.795-1)

10 Degree Steel Retainer for 26120 Beehive Spring

from

$10.99
10 Degree Steel Retainer for 26120 Beehive Spring

Competition Cams – 7 Degree Steel Retainers: 1.055" Spring Diameter, Designed to handle higher pressures (Part No.787-16)

7 Degree Steel Retainers: 1.055" Spring Diameter, Designed to handle higher pressures

from

$85.99
This 7 Degree steel retainer for No. 26915 or No. 26918 Valve Springs in Non Gen III Engines is precision machined from 4140 chromemoly steel and finished in black oxide. This precision retainer is specifically designed for positive location when combined with COMP Cams high-quality valve springs.

Product Features:
  • 7 Degree angle retainers for 1.055″ diameter valve springs, 11/32″ Valve Stems
  • O.D. – 1.030″, Step 1 – .640″
  • Precision machined from 4140 chromemoly steel and finished in black oxide
  • Designed for positive location when combined with COMP Cams high-quality valve springs
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Edelbrock – Sure Seat Valve Springs for Chevy 262-400 V8 1957-95 (Part No.5802)

Sure Seat Valve Springs for Chevy 262-400 V8 1957-95

from

$64.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

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
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Competition Cams – Single Outer Valve Springs: 1.494" Od, 1.080" Id (Part No.901-16)

Single Outer Valve Springs: 1.494" Od, 1.080" Id

from

$83.99
Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance.

Product Features:
  • COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers
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Edelbrock – Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads (Part No.5703)

Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads

from

$69.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

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
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Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5794)

Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95

from

$159.99
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 are black oxide coated. Non-rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • 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 deg. 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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Most Popular Performance Water Outlet for 1978 Cadillac Fleetwoods

Enhance your 1978 Cadillac Fleetwood with this popular Performance Water Outlet we have in stock, for $32.49.

Mr. Gasket – O-Ring Style Chrome Water Neck (Part No.2557)

O-Ring Style Chrome Water Neck

from

$32.49
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:
  • 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
See More

Best-Selling 1978 Cadillac Fleetwood Performance Intake Manifold

Upgrade your Fleetwood with our best-selling Performance Intake Manifold.

Mr. Gasket – Intake Manifold Bolts (Part No.957G)

Intake Manifold Bolts

from

$30.49
These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes sixteen (16) 3/8 inch-16 x 1-1/4 inch bolts & washers

Product Features:
  • Zinc plated Grade 5 steel
  • Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
  • Ideal For Minimal Space
  • 12-Point Head And Flange
  • Zinc Plated For Protection
See More

Top-Quality Performance Engine Valve Stem Seal Sets for 1978 Cadillac Fleetwoods

Choose a high-quality OEM or aftermarket Performance Engine Valve Stem Seal Set for Cadillac Fleetwoods and enjoy top-notch performance from $223.99.

Competition Cams – VALVE SEALS, 11/32" TEFLON 1 ST (Part No.503-16)

VALVE SEALS, 11/32" TEFLON 1 ST

from

$223.99
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 11/32″ valve stem diameter
  • Valve stem oil seals keep unwanted oil from entering the combustion chamber
  • Several different types of valve seals are offered
See More

Top Picks for 1978 Cadillac Fleetwood Performance Engine Camshafts

Invest in one of our 2 durable Performance Engine Camshafts for your 1978 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.

Competition Cams – High Energy 218/218 Hydraulic Flat Cam for Cadillac 425, 472, 500 (Part No.94-304-5)

High Energy 218/218 Hydraulic Flat Cam for Cadillac 425, 472, 500

from

$625.99
High Energy 218/218 Hydraulic Flat Cam for Cadillac 425, 472, 500

Competition Cams – High Energy 212/212 Hydraulic Flat Cam for Cadillac 425, 472, 500 (Part No.94-302-5)

High Energy 212/212 Hydraulic Flat Cam for Cadillac 425, 472, 500

from

$614.99
High Energy 212/212 Hydraulic Flat Cam for Cadillac 425, 472, 500

Performance Engine Valve Springs for 1978 Cadillac Fleetwoods

Make a smart move for your 1978 Cadillac Fleetwood with products all priced from $11.99 to $401.99.

Competition Cams – 16 Springs (Part No.26986-16)

16 Springs

from

$401.99
16 Springs

Competition Cams – 1 Spring (Part No.26981-1)

1 Spring

from

$20.99
1 Spring

Competition Cams – Engine Valve Spring (Part No.981-1)

Engine Valve Spring

from

$11.99
Engine Valve Spring

Top-Rated Performance Engine Brands For Your 1978 Cadillac Fleetwood

When it comes to finding the perfect Performance Engine for your 1978 Cadillac Fleetwood, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Performance Engine brands including B & M, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $382.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1978 Cadillac Fleetwood, providing peace of mind with parts that meet or exceed OEM standards.

Popular B & M 1978 Cadillac Fleetwood Performance Engines

If you’re looking for a top-quality Performance Engine for your 1978 Cadillac Fleetwood, Advance Auto Parts has exactly what you need with our selection of B & M Performance Engines. We have 2 B & M Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $382.99 and an average cost of $472.99, you’ll find the perfect Performance Engine for your needs and budget. B & M Performance Engines for the 1978 Cadillac Fleetwood come highly rated, with over 2 customer reviews and an impressive average rating of 4.3 stars. Choosing a B & M Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Tork Master 2400
from $382.99
(1)
Tork Master 2400
“The B&M 2400 stall converter was a great choice for my application. It works well on the street and track, increased performance by leaps and bounds. ”
Tork Master 3000
from $562.99
(1)
Tork Master 3000
“good parts and very strong”

FAQs for 1978 Cadillac Fleetwood Performance Engines

What are the best-selling Performance Engines for 1978 Cadillac Fleetwoods?

Out of 16 Performance Engines that fit 1978 Cadillac Fleetwoods, the following parts are the top sellers:

What’s the price range for 1978 Cadillac Fleetwood Performance Engines?

The prices of Performance Engines for the 1978 Cadillac Fleetwood range from $10.99 up to $972.99 for the most premium parts.

What is the average price of a Performance Engine for a 1978 Cadillac Fleetwood?

The average price for Performance Engines for the 1978 Cadillac Fleetwood is $358.12. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Engines for other Cadillac Fleetwood model years?

Yes, we carry Performance Engines for 29 model years of Cadillac Fleetwoods between 1965 and 1996. The following model years are the most popular for Performance Engine purchases: 1996, 1995, 1994, 1993, 1989, 1988, 1987, 1986, and 1984.

What are the cheapest Performance Engines for my 1978 Cadillac Fleetwood?

The cheapest 1978 Cadillac Fleetwood Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1978 Cadillac models?

Yes. We stock Performance Engines for 3 other popular 1978 Cadillac models. Some of the most popular are 1978 DeVille Performance Engines, 1978 Eldorado Performance Engines, 1978 Seville Performance Engines, and 1978 Commercial Chassis Performance Engines.

What types of Performance Engines do you sell for my 1978 Cadillac Fleetwood?

As of 6/2/26, these are some of the most in-demand types of Performance Engines for a 1978 Cadillac Fleetwood:

Can I get help with 1978 Cadillac Fleetwood Performance Engine orders?

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

What is your return policy for Cadillac Fleetwood Performance Engines?

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