Name: High Performance Thermostat
Brand: Mr. Gasket
SKU: 4365
Price: 32.49 USD

Essential 1981 Buick Regal Performance Engines

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$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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$483.99

Torque Converter – Tork Master 2400 for GM 1993 to 1996 TH700R4 (30 spline) 1984 to 1993 and 4L60E (30 spline) APPLICATION: Tork Master 2400 for GM 1993 to 1996 TH700R4 (30 spline) 1984 to 1993 and 4L60E (30 spline) The Tork Master is B&M’s lowest cost pe

Product Features:

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

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$459.99

Similar in performance to the Holeshot series, the Tork Master is B&M’s lowest cost torque converter. The Tork Master is an excellent all-around performance street converter. The best ‘value priced’ street converters available.

Product Features:

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

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$416.99

Cam & Lifter Kit, Oldsmobile V8 280 Magnum Hydraulic 1 Ea

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$305.99

SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.

Product Features:

Cam and lifter kit for Small Block Chevy engines
CL-Kit includes cam, lifters, assembly lube, instructions and decals
HYDRAULIC – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.
268/280 Advertised Duration, 224/230 Duration @ .050″, .477″/.480″ Lift, 110 Lobe Separation
Valve spring upgrade required

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$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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$60.99

Ultra-Seal intake manifold gaskets are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For OE replacement, high performance street, drag race and oval track use. Includes manifold end seals and distributor gasket.

Product Features:

Manufactured from cellulose/nitrile composition gasket material
Provides excellent sealing and durability
Silicone beading on both sides of each gasket
Complete with manifold end seals and distributor gasket
For OE replacement, high performance street, drag race and oval track use
Creates Tight Leak proof Seal

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$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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$77.99

Mr. Gasket screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street applications. OE style press in rocker studs can actually pull out of the cylinder head when using high lift camshafts. Includes sixteen studs 3/8-24 x 1.47 inch long top x 7/16-14 bottom.

Product Features:

Black Oxide Coated Grade 8 Steel
Kit Contains 16 Studs
Easy To Install
Heat Treated Steel
Grade 8 Steel

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$13.99

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

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$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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$51.99

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 Printoseal 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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$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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$12.99

Spectre’s Chevrolet V8 water neck fits 1966 – 1995 Chevy V8 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 includes bolts.

Product Features:

Fits 1966 – 1995 Chevy V8 engines
Includes bolts
Chrome plated
Designed for OEM fit
Easy to install
O-ring/gasket not included

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$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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$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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$10.99

10 Degree Superlock Steel Retainer for 1.250" OD Valve Spring

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$10.99

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

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$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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$165.99

Magnum Pushrods from COMP Cams offer an affordable solution for your .080″ wall chromemoly pushrod needs. Designed to withstand the stresses of a high performance engine, Magnum Pushrods are head-treated for extended durability and have precision formed, reinforced ends. Magnum Pushrods are black-oxide finished with their part number and length laser etched onto the surface for easy identification.

Product Features:

3/8″ Diameter, 7.800″ Length
Magnum Pushrods for Small Block Chevy
One-piece .080″ wall chromemoly steel tubing
Heat-treated for extended durability and guide plate compatibility
Precision formed and reinforced pushrod end

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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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$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.

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$226.99

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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$251.99

HYDRAULIC – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.

Product Features:

HYDRAULIC – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.
268/280 Advertised Duration, 224/230 Duration @ .050″, .477″/.480″ Lift, 110 Lobe Separation
Valve spring upgrade required
Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

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$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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$33.99

Work with .530″ guides and 3/8″ 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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$223.99

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

from

$223.99

VALVE SEALS, O-RING 11/32″ 1 ST

FAQs for 1981 Buick Regal Performance Engines

What are the best-selling Performance Engines for 1981 Buick Regals?

Out of 36 Performance Engines that fit 1981 Buick Regals, the following parts are the top sellers:

High Performance Thermostat (22903641) – $32.49
Water Neck; Olds (22905408) – $26.99
VALVE SEALS, 11/32" TEFLON 1 ST (10043400) – $223.99

What’s the price range for 1981 Buick Regal Performance Engines?

The prices of Performance Engines for the 1981 Buick Regal range from $9.99 up to $972.99 for the most premium parts.

What is the average price of a Performance Engine for a 1981 Buick Regal?

The average price for Performance Engines for the 1981 Buick Regal is $373.75. 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 Regal model years?

Yes, we carry Performance Engines for 30 model years of Buick Regals between 1973 and 2004. The following model years are the most popular for Performance Engine purchases: 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, and 1996.

What are the cheapest Performance Engines for my 1981 Buick Regal?

The cheapest 1981 Buick Regal Performance Engines we carry are:

Engine Valve Spring (50286657) – $9.99
10 Degree Steel Retainer for 26120 Beehive Spring (50289146) – $10.99
7 Degree Steel Retainer for 3/8" Valves with 1.500"-1.550" Spring (50289506) – $10.99
7 Degree Steel Retainer for 11/32" Valves with 1.500"-1.550" Spring (50289132) – $10.99
Magnum 9.130" Long, .080" Wall, 5/16" Diameter Pushrod (50289181) – $15.99

Does Advance Auto Parts sell Performance Engines for any other 1981 Buick models?

Yes. We stock Performance Engines for 5 other popular 1981 Buick models. Some of the most popular are 1981 Century Performance Engines, 1981 LeSabre Performance Engines, 1981 Skylark Performance Engines, 1981 Riviera Performance Engines, and 1981 Electra Performance Engines.

What types of Performance Engines do you sell for my 1981 Buick Regal?

As of 3/1/26, these are some of the most in-demand types of Performance Engines for a 1981 Buick Regal:

Can I get help with 1981 Buick Regal 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 Regal Performance Engines?

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

1981 Buick Regal Performance Engines

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

B & M – Tork Master 2400 (Part No.70418)

B & M – Tork Master 2000: Value-Priced Street Performance Torque Converter (Part No.70420)

Competition Cams – Cam & Lifter Kit, Oldsmobile V8 280 Magnum Hydraulic 1 Ea (Part No.CL42-231-4)

Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-242-2)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 4 Piece Set (Part No.1357)

Mr. Gasket – Gskt Intake (Part No.5812)

Competition Cams – Rocker Arms, Ultra Gold Small Block Chevy 1.6 1 St (Part No.19002-16)

Mr. Gasket – Ultra Seal: Screw-In Rocker Arm Studs (Part No.1076)

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

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1010)

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

Spectre – Water Neck Chev Late w/Hdr (Part No.42313)

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

Edelbrock – Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79 (Part No.5792)

Competition Cams – 10 Degree Superlock Steel Retainer for 1.250" OD Valve Spring (Part No.750-1)

Competition Cams – 11 Steel Retainer for Buick 350-455 with 1.225"-1.250" OD Valve Spring (Part No.712-1)

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

Competition Cams – PUSHROD SET, SBC 3/8 1 ST (Part No.7513-16)

Edelbrock – Pushrod Set for S/B Chevy (Part No.9630)

Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam (Part No.42-222-4)

Competition Cams – Xtreme Energy 206/212 Hydraulic Flat Cam (Part No.12-230-2)

Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam (Part No.12-242-2)

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

Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

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

Competition Cams – Valve Seals, O-Ring 11/32" 1 St (Part No.501-16)

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

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 3 Piece Set (Part No.1200)

FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1000)

Competition Cams – ENGINE ROCKER ARM (Part No.1602-16)

Competition Cams – ENGINE ROCKER ARM (Part No.1601-16)

Competition Cams – ENGINE ROCKER ARM (Part No.1605-1)

Competition Cams – ENGINE ROCKER ARM (Part No.1601-1)

Competition Cams – ENGINE ROCKER ARM (Part No.1602-1)

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