1973 Buick LeSabre Performance Engines

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Keep Your 1973 Buick LeSabre 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 1973 Buick LeSabre looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Intake Manifolds, Performance Intake Manifold Hardware, and Performance Engine Intake Manifold Gaskets. 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 Competition Cams, B & M, and Spectre. For example, Competition Cams Performance Engines start at just $33.99 with an average 4.1 star rating. B & M and Spectre offer similar pricing and quality, backed by strong customer feedback. With over 82 reviews and a solid 5 star average, you can shop with confidence knowing other Buick LeSabre owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1973 Buick LeSabre Performance Engine at Advance Auto Parts is around $331.81, with a range that starts at $10.99 and goes up to $1,201.99. With 73 options in stock from 6 trusted brands, finding the right fit is easy. Popular picks like Bolt Kit Intake Hex Head, High Performance Thermostat, and Water Neck start at just $10.99 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 Air Filters and Performance Fuel Systems. At Advance Auto Parts, we’re here to help you keep your 1973 Buick LeSabre in peak condition, inside and out.

Essential 1973 Buick LeSabre 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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Weiand – Action Plus Water Pumps (Part No.9208P)

Action Plus Water Pumps

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$255.99
Weiand’s light weight, performance aluminum mechanical Action-Plus water pumps give a weight saving of 30 percent to 50 percent over stock cast-iron pumps. These pumps feature a premium quality bearing and seal that have twice the load capacity of stock pumps. Weiand’s exclusive housing counter bore keeps the bearing form walking out. All pumps are designed with the necessary bracket bosses and water connections to fit popular street applications.

Product Features:
  • Twisted Snout Water Pump Design For Updated Style
  • Street Performance
  • Heavy Duty Shaft w/5/8 in. Pilot
  • Six-Blade Stamped Steel
  • Anti-Cavitation Impeller
  • 100 Percent Leak Tested
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Competition Cams – High Energy Timing Set (Part No.3200)

High Energy Timing Set

from

$66.99
COMP Cams High Energy Timing Chain Sets include precision cast iron camshaft and crank gear sprockets and premium quality link belt type timing chain. These sets exceed all original equipment timing chain specifications and are ideal for stock replacement and mild performance applications.

Product Features:
  • Exceeds all original equipment timing chain specifications
  • Premium quality link belt type chain for exceptional durability; chain also available separately
  • Precision cast iron camshaft and crank gear sprockets
  • Ideal for stock replacement and mild performance applications
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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$44.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
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Competition Cams – Xtreme Energy 206/212 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-230-2)

Xtreme Energy 206/212 Hydraulic Flat Cam and Lifter Kit

from

$305.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.

Product Features:
  • Excellent performance in street carbureted applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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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 – Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79 (Part No.5792)

Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79

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$149.99
Product Features:
  • Non-Rotator Type
  • 1.550 in. Outer Diameter
  • .190 Wire Size
  • Single Coil Spring Type
  • Set of 16
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Edelbrock – Pushrod Set for S/B Chevy (Part No.9630)

Pushrod Set for S/B Chevy

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$199.99


Product Features:
  • Case-Hardened Tubing
  • Welded Ends
  • 5/16 in. Diameter
  • Use with or without Hardened Steel Guideplates
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Mr. Gasket – Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (Part No.956G)

Intake Manifold Bolt Set - Chevrolet Small Block - Socket Head 3/8"-16 X 1" Bolts & Washers

from

$20.79
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 twelve (12) 3/8 inch-16 x 1 inch bolts & washers

Product Features:
  • Zinc plated to resist corrosion and provide a clean professional appearance
  • Made from Grade 5 steel for strength and durability
  • Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
  • Allen (socket) Head
  • Zinc Plated For Protection
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Spectre – Bolt Kit Intake Hex Head (Part No.4652)

Bolt Kit Intake Hex Head

from

$10.99
Spectre’s Intake Bolt and Washer Set is engineered to provide premium quality hardware for Chevrolet 265-400 and Chrysler 273-440 small block engines. Measuring 3/8 inch-16 by 1 inch, these grade 5 bolts feature a corrosion resistant zinc-plated finish and hex heads to ensure easy installation. This kit includes 12 bolts and washers.

Product Features:
  • Designed for Chevrolet 265-400 and Chrysler 273-440 small block engines
  • 3/8 inch-16 by 1 inch bolts
  • Kit includes 12 bolts and washers
  • Manufactured from high quality steel
  • Bolts feature hex heads
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Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam (Part No.42-222-4)

Xtreme Energy 218/224 Hydraulic Flat Cam

from

$350.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:
  • Excellent performance in street carbureted applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
See More

Competition Cams – Xtreme Energy 240/246 Hydraulic Flat Cam (Part No.42-225-4)

Xtreme Energy 240/246 Hydraulic Flat Cam

from

$297.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts,

Product Features:
  • Excellent performance in street carbureted applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
See More

Competition Cams – High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6. (Part No.812-1)

High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6.

from

$13.99
High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6.

Mr. Gasket – Ultra Seal: Sure-Lock Rocker Arm Nuts (Part No.920G)

Ultra Seal: Sure-Lock Rocker Arm Nuts

from

$75.99
These are high quality nuts with allen set screws to provide you with that positive lock needed for Race or original equipment Rocker Arms.

Product Features:
  • They Are Zinc Dichromate Plated Steel
  • They Have Black Oxide Coated Set Screws
  • Keeps Rocker Arms Positively Locked
  • (16) Rocker Arm Nuts w/ Locks 3/8″-24 Threads
  • Includes Locks and Hex Wrench
  • Shank O.D. .603″
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Competition Cams – Rocker Arms, Ultra Gold Small Block Chevy 1.6 1 St (Part No.19002-16)

Rocker Arms, Ultra Gold Small Block Chevy 1.6 1 St

from

$433.99
These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 3/8″ stud diameter and 1.6 ratio are designed for Chevrolet V8 265-400 applications. The new modern design features of these Ultra-Gold Rockers are proven to withstand extremely aggressive spring pressure and valve lift. Designed specifically for high performance street and race engines, the Ultra-Gold Aluminum Rocker Arms are precision CNC-machined to strict tolerances. Developed to meet the demands of professional engine builders, these rockers include features never before possible in an aluminum rocker arm.

Product Features:
  • CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy
  • Designed for high performance street and race engines
  • Precision-sorted trunion bearings withstand elevated valve spring pressure and valve lift
  • Additional clearance, up to 1.650″ O.D. valve spring
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Edelbrock – Intake Manifold Gasket for 1967-1976 400-455 Buick (Part No.7246)

Intake Manifold Gasket for 1967-1976 400-455 Buick

from

$32.99
Edelbrock part #7246 Intake Gaskets for 1967-1976 400-455 Buick allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology

Product Features:
  • 1.15″x2.38″
  • Features Embossed Silicone Bead Around The Intake Ports & Water Openings
  • .032″ Thick
  • Two Piece Configuration
  • End Seals Not Included
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Mr. Gasket – Intake Gasket (Part No.143)

Intake Gasket

from

$49.99
Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. This is a low density material that conforms well to irregular surfaces and has very good crush resistance at high flange pressures. They provide excellent sealing and durability as the material is designed for sealing gasoline, oils, water and coolant in applications up to 350 degrees Fahrenheit. While die-cut for an excellent fit, they can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.

Product Features:
  • Manufactured from cellulose/nitrile composition gasket material
  • Provides excellent sealing and durability
  • Die-cut for an excellent fit
  • Can be trimmed if necessary for modified port applications
  • For OE replacement, high performance street, drag race and oval track use
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Competition Cams – 11 Steel Retainer for Buick 350-455 with 1.225"-1.250" OD Valve Spring (Part No.712-1)

11 Steel Retainer for Buick 350-455 with 1.225"-1.250" OD Valve Spring

from

$10.99
11 Steel Retainer for Buick 350-455 with 1.225"-1.250" OD Valve Spring

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9724)

Performer Series Retainer (Qty 16)

from

$106.99
Product Features:
  • Use W/ Valve Springs Part #5822, 5882, 5896, 5872, 5867, 5812, 5857
  • Set of 16
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Edelbrock – Performer RPM AIR-Gap Small Block Chevy Polished Intake Manifold (Part No.75011)

Performer RPM AIR-Gap Small Block Chevy Polished Intake Manifold

from

$749.99
Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RPM. Dual-plane high-rise intake. For square bore carburetors only. For street and high performance use. Available in cast, polished or endurashine finish.

Product Features:
  • Polished Version Of Edelbrock PN[7501]
  • Polish is Hand-Buffed for Brilliant Shine
  • Based on Performer RPM-Series with Unique Air Gap
  • Air Gap Cooler and Denser Mixture for More Power
  • Designed for 1500 to 6500 RPM Street-Driven Power
  • Produces Incredible Top-End Horsepower
  • Retains Good Throttle Response and Acceleration
  • Larger Plenum and Runners Maximizes Other Upgrades
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Edelbrock – Performer EPS Intake Manifold for 1955-86 Small-Block Chevy (Part No.2701)

Performer EPS Intake Manifold for 1955-86 Small-Block Chevy

from

$195.99
Edelbrock part No. 2701 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent throttle response. With that the Edelbrock Performer EPS intake manifold has a runner design that’s “tuned” for peak torque at 3500 rpm on a 350-inch engine making it ideal for power from off-idle to 5500 rpm. Dyno tests showed gains of 5 hp and 9 ft-lbs. of torque over the Edelbrock Performer manifold No. 2101 on a 350 Chevy. From 3000 to 4500 rpm, the power increases averaged 5+ ft-lbs. of torque for more performance where you need it most. PLEASE NOTE: Will not fit under stock Corvette hood!

Product Features:
  • Maximizes Performance with Edelbrock Carburetors
  • Runners Tuned to Match Square Bore Carburetor
  • Maximizes Peak Torque Around 3500 RPM
  • Excellent Throttle Response and Mid-Range Power
  • For Idle to 5500 RPM Street-Driven Performance
  • Dual-Plane Low-Rise Intake w/180 deg. Firing Order
  • Prod. +5 HP and +9 ft/lbs. of Torque Over PN[2101]
  • PLEASE NOTE: Will not fit under stock Corvette hood!
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FEL-PRO Performance – Performance Valve Cover Gasket Set (Part No.1623)

Performance Valve Cover Gasket Set

from

$23.29
Fel-Pro® Performance Gaskets deliver reliable sealing under grueling racing conditions.

Product Features:
  • Blue Stripe® performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1622)

Engine Valve Cover Gasket Set

from

$34.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
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B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)

Performance Torque Converter for GM TH400, 350, & 375 Transmissions

from

$337.99
Torque Converter – Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost

Product Features:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
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B & M – Torque Converter, Holeshot 3000 (Part No.70421)

Torque Converter, Holeshot 3000

from

$921.99
The Holeshot Converter is a very good choice for the typical street machine that is looking for better launch capability and more strength. With a furnace brazed turbine, New turbine hub and dual pattern drive lugs on some GM Holeshots.

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

High Performance Thermostat

from

$32.49
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens At 195 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
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Most Popular Performance Intake Manifold for 1973 Buick LeSabres

Enhance your 1973 Buick LeSabre with this popular Performance Intake Manifold we have in stock, for $644.99.

Edelbrock – RPM Air-Gap Oldsmobile 455 Intake Manifold (Part No.7551)

RPM Air-Gap Oldsmobile 455 Intake Manifold

from

$644.99
Edelbrock part #7551 Performer RPM Air-Gap Oldsmobile 455 intake manifold is intended for aggressive street/ strip big-block Oldsmobile applications. Designed to optimize horsepower production from 1500 to 6500 rpm, this manifold will perform best with en

Product Features:
  • 1500-6500 RPM Range
  • Dual Plane Type-4150 Style Flange
  • 5.04 in. Front Height, 5.54 in. Center Height, 6.04 in. Rear Height
  • Satin Finish
  • Non-EGR
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Best-Selling 1973 Buick LeSabre Performance Intake Manifold Hardware

Upgrade your LeSabre with our best-selling Performance Intake Manifold Hardware.

Spectre – Bolt Kit Intake Hex Head (Part No.4652)

Bolt Kit Intake Hex Head

from

$10.99
Spectre’s Intake Bolt and Washer Set is engineered to provide premium quality hardware for Chevrolet 265-400 and Chrysler 273-440 small block engines. Measuring 3/8 inch-16 by 1 inch, these grade 5 bolts feature a corrosion resistant zinc-plated finish and hex heads to ensure easy installation. This kit includes 12 bolts and washers.

Product Features:
  • Designed for Chevrolet 265-400 and Chrysler 273-440 small block engines
  • 3/8 inch-16 by 1 inch bolts
  • Kit includes 12 bolts and washers
  • Manufactured from high quality steel
  • Bolts feature hex heads
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Top-Quality Performance Engine Intake Manifold Gaskets for 1973 Buick LeSabres

Choose a high-quality OEM or aftermarket Performance Engine Intake Manifold Gasket for Buick LeSabres and enjoy top-notch performance from $32.99.

Edelbrock – Intake Manifold Gasket for 1967-1976 400-455 Buick (Part No.7246)

Intake Manifold Gasket for 1967-1976 400-455 Buick

from

$32.99
Edelbrock part #7246 Intake Gaskets for 1967-1976 400-455 Buick allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology

Product Features:
  • 1.15″x2.38″
  • Features Embossed Silicone Bead Around The Intake Ports & Water Openings
  • .032″ Thick
  • Two Piece Configuration
  • End Seals Not Included
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FEL-PRO Performance – Lower Intake Manifold Gasket Set: 4 Piece Set (Part No.1357)

Lower Intake Manifold Gasket Set: 4 Piece Set

from

$44.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
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Our Top Pick for a 1973 Buick LeSabre Performance Engine Valve Cover Gasket Set

Invest in a durable Performance Engine Valve Cover Gasket Set for your 1973 Buick, knowing you’re getting trusted brands and expert craftsmanship.

Edelbrock – Valve Cover Gasket Set for Buick (Part No.7546)

Valve Cover Gasket Set for Buick

from

$37.99
The Edelbrock valve cover gaskets #7546?provide excellent sealing integrity and conformability for easy installation. The multi-layer construction has two highly compressible, high rubber content, fiber-reinforced outside layers which are chemically bonde

Product Features:
  • 0.1875 in. Thickness
  • Core-Reinforced-Composite Material
  • For Buick 400-455
  • Set of 2
  • Made In The USA
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Performance Engine Cylinder Head Gaskets for 1973 Buick LeSabres

Make a smart move for your 1973 Buick LeSabre with products all priced from $71.99 to $109.99.

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

Ultra Seal: Head Gasket

from

$89.99
Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.230 inch, Compressed thickness 0.038 inch

Product Features:
  • Five layer (graphite core/perforated steel outer layers) composite construction
  • Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out
  • Provides excellent stability, compressibility and high temperature endurance
  • Coated with high temperature silicone to ensure sealing of engine fluids
  • Will not brinell (indent) aluminum cylinder heads
  • For high performance street, drag race and oval track use
  • Compatible w/High Octane Fuel
  • Compatible With Exotic Fuel
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Mr. Gasket – Ultra Seal: Head Gasket (Part No.5799G)

Ultra Seal: Head Gasket

from

$81.99
Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.130 inch, Compressed thickness 0.055 inch

Product Features:
  • Five layer (graphite core/perforated steel outer layers) composite construction
  • Graphite core is excellent transfering heat away from hot spots in head preventing gasket burn-out.
  • Provides excellent stability, compressibility and high temperature endurance
  • Coated with high temperature silicone to ensure sealing of engine fluids
  • Will not brinell (indent) aluminum cylinder heads
  • For high performance street, drag race and oval track use
  • Compatible w/High Octane Fuel
  • Compatible With Exotic Fuel
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FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1125)

Performance Cylinder Head Gasket

from

$109.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.

Product Features:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • SUPERIOR SEAL – Precise embossed Printo seal sealing beads at all vital areas to eliminate leak paths
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Edelbrock – GASKETS (Part No.7346)

GASKETS

from

$71.99
GASKETS

Top-Rated Performance Engine Brands For Your 1973 Buick LeSabre

When it comes to finding the perfect Performance Engine for your 1973 Buick LeSabre, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 6 trusted brands. We carry the most popular Performance Engine brands including Spectre, Competition Cams, and B & M, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $12.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1973 Buick LeSabre, providing peace of mind with parts that meet or exceed OEM standards.

Popular Spectre 1973 Buick LeSabre Performance Engines

If you’re looking for a top-quality Performance Engine for your 1973 Buick LeSabre, Advance Auto Parts has exactly what you need with our selection of Spectre Performance Engines. We have 1 Spectre Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $12.99, you’ll find the perfect Performance Engine for your needs and budget. Spectre Performance Engines for the 1973 Buick LeSabre come highly rated, with over 1 customer reviews and an impressive average rating of 4.2 stars. Choosing a Spectre Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Water Neck Chev Late w/Hdr
from $12.99
(1)
Water Neck Chev Late w/Hdr
“nice bolts”

Top-Quality Competition Cams 1973 Buick LeSabre Performance Engines

For those in search of a high-quality Performance Engine for their 1973 Buick LeSabre, Advance Auto Parts offers a great selection of Competition Cams Performance Engines. With 3 Competition Cams Performance Engines in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Performance Engines start at just $33.99, with an average price of $615.99, giving you a range of options to suit your budget. Backed by over 15 customer ratings and an average rating of 4.1 stars, Competition Cams Performance Engines provide both reliability and excellent performance. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
High Energy/Marine 218/218 Hydraulic Flat Cam/Lifter Kit
from $898.99
(1)
High Energy/Marine 218/218 Hydraulic Flat Cam/Lifter Kit
“nearly identical match for the original part”
Big Mutha' Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
from $914.99
(13)
Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
“Worked prefect. Gave me the Hi speed blower back”
VALVE SEALS, TEFLON 3/8" 1 ST
from $33.99
(1)
VALVE SEALS, TEFLON 3/8" 1 ST
“As good as OEM.”

FAQs for 1973 Buick LeSabre Performance Engines

What are the best-selling Performance Engines for 1973 Buick LeSabres?

Out of 73 Performance Engines that fit 1973 Buick LeSabres, the following parts are the top sellers:

What’s the price range for 1973 Buick LeSabre Performance Engines?

The prices of Performance Engines for the 1973 Buick LeSabre range from $10.99 up to $1,201.99 for the most premium parts.

What is the average price of a Performance Engine for a 1973 Buick LeSabre?

The average price for Performance Engines for the 1973 Buick LeSabre is $331.81. 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 Buick LeSabre model years?

Yes, we carry Performance Engines for 40 model years of Buick LeSabres between 1964 and 2005. The following model years are the most popular for Performance Engine purchases: 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, and 1997.

What are the cheapest Performance Engines for my 1973 Buick LeSabre?

The cheapest 1973 Buick LeSabre Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1973 Buick models?

Yes. We stock Performance Engines for 6 other popular 1973 Buick models. Some of the most popular are 1973 Regal Performance Engines, 1973 Century Performance Engines, 1973 Riviera Performance Engines, 1973 Electra Performance Engines, and 1973 Estate Wagon Performance Engines.

What are the top-rated Performance Engines that fit the 1973 Buick LeSabre?

The one 1973 Buick LeSabre Performance Engine we have in stock is the Bolt Kit Intake Hex Head. It costs $10.99.

What types of Performance Engines do you sell for my 1973 Buick LeSabre?

As of 3/1/26, these are some of the most in-demand types of Performance Engines for a 1973 Buick LeSabre:

Can I get help with 1973 Buick LeSabre Performance Engine orders?

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

What is your return policy for Buick LeSabre Performance Engines?

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