1968 Cadillac Eldorado Performance Engines
Keep Your 1968 Cadillac Eldorado 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 1968 Cadillac Eldorado looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Intake Manifolds, Performance Torque Converters, and Performance Engine Valve Springs. 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 $373.99 with an average 4.1 star rating. With over 1 reviews and a solid 5 star average, you can shop with confidence knowing other Cadillac Eldorado owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1968 Cadillac Eldorado Performance Engine at Advance Auto Parts is around $404.82, with a range that starts at $10.99 and goes up to $949.99. With 24 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Performance Torque Converter for GM TH400, 350, & 375 Transmissions, Holeshot 3600, and Torque Converter, Nitrous Holeshot 3600 start at just $329.99 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 Fuel Systems and Performance Ignition Products. At Advance Auto Parts, we’re here to help you keep your 1968 Cadillac Eldorado in peak condition, inside and out.
Find Your Specific 1968 Cadillac Eldorado Performance Engines
Looking for the perfect Performance Engine for your 1968 Cadillac Eldorado? You’re in the right place. Below, you’ll find links to various types of Performance Engines that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Engines, ensuring durability and a precise fit for your Cadillac Eldorado. Whether you’re driving a 1968 model or another popular model year like
1978,
1979,
1980,
1981,
1982,
1986,
1987,
1988, and
1989, we’ve got you covered. Purchasing Performance Engines from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Engines that fit your vehicle.
Essential 1968 Cadillac Eldorado Performance Engines
Competition Cams – Mutha’ Thumpr 234/249 Hydraulic Flat Cam (Part No.42-601-5)
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:
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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.
Competition Cams – Thumpr 226/241 Hydraulic Flat Cam (Part No.42-600-5)
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:
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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.
Competition Cams – Big Mutha’ Thumpr 242/257 Hydraulic Flat Cam (Part No.42-602-5)
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:
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.
B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)
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:
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Product Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)
from
$749.99
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:
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Product Features:
- 3400-3800 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
B & M – Tork Master 2400 (Part No.20404)
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:
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Product Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
B & M – Torque Converter, Nitrous Holeshot 3000 (Part No.20481)
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:
See More
Product Features:
- 2800-3200 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
B & M – Holeshot 3000 (Part No.20413)
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:
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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
B & M – Holeshot 3600 (Part No.20425)
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:
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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 – Holeshot 2400 (Part No.20412)
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:
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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
Edelbrock – Performer Small Block Oldsmobile 350 Intake Manifold (Part No.7111)
from
$481.99Product 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
Edelbrock – Performer Intake Manifold for 1968-1976 Cadillac 472-500, Satin Finish (Part No.2115)
from
$553.99
Product Features:
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- Idle-5500 RPM Range
- Dual Plane Type-4150 Style Flange
- 4.88 in. Front Height, 5.34 in. Center Height, 5.81 in. Rear Height
- Satin Finish
- Made In The USA
Popular 1968 Cadillac Eldorado Performance Engines Categories
Most Popular Performance Intake Manifold for 1968 Cadillac Eldorados
Enhance your 1968 Cadillac Eldorado with this popular Performance Intake Manifold we have in stock, for $553.99.
Edelbrock – Performer Intake Manifold for 1968-1976 Cadillac 472-500, Satin Finish (Part No.2115)
from
$553.99
Product Features:
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- Idle-5500 RPM Range
- Dual Plane Type-4150 Style Flange
- 4.88 in. Front Height, 5.34 in. Center Height, 5.81 in. Rear Height
- Satin Finish
- Made In The USA
Best-Selling 1968 Cadillac Eldorado Performance Torque Converters
Upgrade your Eldorado with one of our 7 best-selling Performance Torque Converters, earning an average 5 stars rating across 1 reviews.
B & M – Tork Master 2400 (Part No.20404)
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:
See More
Product Features:
- New Precision Pump Drive Tube
- Pressure Tested
- Fully Balanced
- Needle Thrust Bearing
- New Thrust Washer
B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)
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:
See More
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
$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:
See More
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 – Holeshot 3000 (Part No.20413)
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:
See More
Product Features:
- Furnace Brazed Impeller
- Steel Alloy Pump Drive Tube
- Heavy Duty Needle Bearing
- Between Stator and Turbine
- Furnace Brazed Turbine
B & M – Torque Converter, Nitrous Holeshot 3000 (Part No.20481)
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:
See More
Product Features:
- 2800-3200 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)
from
$749.99
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:
See More
Product Features:
- 3400-3800 RPM
- Small And Big Blocks
- Serious Performance
- Furnace Brazed
- Fully Balanced
B & M – Holeshot 2400 (Part No.20412)
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:
See More
Product Features:
- Furnace Brazed Impeller
- Steel Alloy Pump Drive Tube
- Heavy Duty Needle Bearing
- Between Stator and Turbine
- Furnace Brazed Turbine
Top-Quality Performance Engine Valve Springs for 1968 Cadillac Eldorados
Choose a high-quality OEM or aftermarket Performance Engine Valve Spring for Cadillac Eldorados and enjoy top-notch performance from $11.99.
Competition Cams – 16 Springs (Part No.26986-16)
from
$401.99
16 Springs
Competition Cams – 16 Springs (Part No.26981-16)
from
$336.99
16 Springs
Competition Cams – 1 Spring (Part No.26981-1)
from
$20.99
1 Spring
Competition Cams – Engine Valve Spring (Part No.981-1)
from
$11.99
Engine Valve Spring
Our Top Pick for a 1968 Cadillac Eldorado Performance Engine Timing Sets and Component
Invest in a
durable Performance Engine Timing Sets and Component for your 1968 Cadillac, knowing you’re getting trusted brands and expert craftsmanship.
Competition Cams – ENGINE TIMING SET (Part No.2139)
from
$187.99
ENGINE TIMING SET
Performance Engine Camshafts for 1968 Cadillac Eldorados
Make a smart move for your 1968 Cadillac Eldorado with products all priced from $614.99 to $702.99.
Competition Cams – Magnum 224/224 Hydraulic Flat Cam for Cadillac 425, 472, 500 (Part No.94-306-5)
from
$702.99
Magnum 224/224 Hydraulic Flat Cam for Cadillac 425, 472, 500
Competition Cams – Mutha’ Thumpr 234/249 Hydraulic Flat Cam for Cadillac 425, 472, 500 (Part No.94-601-5)
from
$679.99
Mutha’ Thumpr 234/249 Hydraulic Flat Cam for Cadillac 425, 472, 500
Competition Cams – High Energy 218/218 Hydraulic Flat Cam for Cadillac 425, 472, 500 (Part No.94-304-5)
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)
from
$614.99
High Energy 212/212 Hydraulic Flat Cam for Cadillac 425, 472, 500
Top-Rated Performance Engine Brands For Your 1968 Cadillac Eldorado
When it comes to finding the perfect Performance Engine for your 1968 Cadillac Eldorado, 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 4.1 stars) and competitive prices, as low as $373.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1968 Cadillac Eldorado, providing peace of mind with parts that meet or exceed OEM standards.
Popular B & M 1968 Cadillac Eldorado Performance Engines
If you’re looking for a top-quality Performance Engine for your 1968 Cadillac Eldorado, Advance Auto Parts has exactly what you need with our selection of B & M Performance Engines. We have 1 B & M Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $373.99, you’ll find the perfect Performance Engine for your needs and budget. B & M Performance Engines for the 1968 Cadillac Eldorado come highly rated, with over 1 customer reviews and an impressive average rating of 4.1 stars. Choosing a B & M Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
from
$373.99
(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. ”
FAQs for 1968 Cadillac Eldorado Performance Engines
What are the best-selling Performance Engines for 1968 Cadillac Eldorados?
Out of 24 Performance Engines that fit 1968 Cadillac Eldorados, the following parts are the top sellers:
- Performance Torque Converter for GM TH400, 350, & 375 Transmissions (6120113) – $329.99
- Holeshot 3600 (22300036) – $949.99
- Torque Converter, Nitrous Holeshot 3600 (22300039) – $749.99
What’s the price range for 1968 Cadillac Eldorado Performance Engines?
The prices of Performance Engines for the 1968 Cadillac Eldorado range from $10.99 up to $949.99 for the most premium parts.
What is the average price of a Performance Engine for a 1968 Cadillac Eldorado?
The average price for Performance Engines for the 1968 Cadillac Eldorado is $404.82. 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 Eldorado model years?
What are the cheapest Performance Engines for my 1968 Cadillac Eldorado?
The cheapest 1968 Cadillac Eldorado Performance Engines we carry are:
- 10 Degree Superlock Steel Retainer for 1.437"-1.500" OD Valve Spring (50289470) – $10.99
- 10 Degree Steel Retainer for 26120 Beehive Spring (50289146) – $10.99
- 7 Steel Retainer for SBC, Chevrolet/Buick V6 with 1.250" OD Spring (50289502) – $10.99
- Engine Valve Spring (50286858) – $11.99
- High Energy Hydraulic Flat Lifter for Buick 181-252/350-455 and Cadillac 472-500 (50286568) – $13.99
Does Advance Auto Parts sell Performance Engines for any other 1968 Cadillac models?
Yes. We stock Performance Engines for 3 other popular 1968 Cadillac models. Some of the most popular are 1968 DeVille Performance Engines, 1968 Fleetwood Performance Engines, 1968 Calais Performance Engines, and 1968 Commercial Chassis Performance Engines.
What types of Performance Engines do you sell for my 1968 Cadillac Eldorado?
As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1968 Cadillac Eldorado:
Can I get help with 1968 Cadillac Eldorado 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 Eldorado Performance Engines?
Advance Auto Parts keeps returns simple. For new Cadillac Eldorado Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.