1991 GMC C2500 Performance Engines

Name: Cam Bolt Lock Plate Kit
Brand: Mr. Gasket
SKU: 948G
Price: 21.49 USD
Rating: 5.0 (2 reviews)

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1991 GMC C2500 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 1991 GMC C2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Intake Manifolds, Performance Engine Intake Manifold Gaskets, and Performance Engine Cylinder Head 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, Edelbrock, and FEL-PRO Performance. For example, Competition Cams Performance Engines start at just $33.99 with an average 4.2 star rating. Edelbrock and FEL-PRO Performance offer similar pricing and quality, backed by strong customer feedback. With over 350 reviews and a solid 4 star average, you can shop with confidence knowing other GMC C2500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1991 GMC C2500 Performance Engine at Advance Auto Parts is around $344.03, with a range that starts at $10.99 and goes up to $1,214.00. With 178 options in stock from 7 trusted brands, finding the right fit is easy. Popular picks like Ultra Seal: Harmonic Balancer Bolt/Washer Kit, Bolt Kit Intake Hex Head, and Lower Intake Manifold Gasket Set: 9 Piece Set 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 Intake Kits and Performance Distributors. At Advance Auto Parts, we’re here to help you keep your 1991 GMC C2500 in peak condition, inside and out.

Looking for the perfect Performance Engine for your 1991 GMC C2500? 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 GMC C2500. Whether you’re driving a 1991 model or another popular model year like 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, and 2000, 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 1991 GMC C2500 Performance Engines

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$21.49

Mr. Gasket cam locking plates feature a steel retainer plate designed to secure the cam gear bolts from coming loose and backing out, preventing costly engine damage. Retainer plate fits under bolt heads allowing tabs to be bent against hex head flats creating a secure positive lock.

Product Features:

Black oxide finished steel
Includes (3) grade 5 bolts & locking plate
Fits Chevrolet Small and Big Block without OE roller cam
Tabs bend up around bolt head to secure

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$10.99

Steel Retainer for Ford 4.6L 3 Valve with 26113/26125 Beehive Springs

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$29.99

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

Product Features:

Opens At 180 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$54.99

Raised 1 Piece Guide Plate Set Chevrolet Big Block With 3/8" Pushrod 7/16" Stud

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$214.99

Edelbrock part #9646 Pushrods are designed for small-block Chevy V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precise forme

Product Features:

7.25 in. Length
0.312 in. Diameter
4130 Chromoly Steel Material
Black Oxide Finish
Made In The USA

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$15.49

This is a high quality bolt set that is made of grade 8 steel and will meet your requirements for a quality bolt set, this set will work on original equipment, high performance street, drag or circle track applications.

Product Features:

Has A Zinc Dichromate Finish
Made Of High Quality Grade 8 Steel
Has A Tall Hex Head To Prevent Wrench Slipping Off
Extra Thick Parallel Ground Washer
Washer Provides More Accurate And Uniform Torque

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$28.99

Product Features:

Clean Positive Seal
Embossed Silicone Bead Surrounding The Port
Matched To Manifolds And Cylinder Heads

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$33.99

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 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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$259.99

HYDRAULIC – Xtreme Energy: Strong torque. Excellent response, heavy towing in 454 with 4.10 gear.

Product Features:

HYDRAULIC – Xtreme Energy: Strong torque. Excellent response, heavy towing in 454 with 4.10 gear.
262/270 Advertised Duration, 218/224 Duration @ .050″, .504″/.510″ Lift, 110 Lobe Separation
Valve spring upgrade required
Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

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$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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$28.49

This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It’s also injection molded for a precise fit.

Product Features:

Repairs That Leaky Rear Main Sail
Silicone Rubber to Withstand Extreme Engine Oil Temperatures
Upgrade for Rope Seal Equipped Cars or Direct Replacement for Rubber Main Seal
Injection Molded for Precise Fit

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$570.99

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 fuel injected 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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$106.99

This Spectre engine dress-up kit was designed for the 1987 – 1995 Chevy 305 & 350 engines. This kit includes: stock height valve covers, chrome valve cover T-bolts, chrome oil filler cap, chrome PCV breather, grommets, and an air cleaner adapter stud. The air filter adapter stud, is a z-bolt that is designed to allow you to use a center stud style air cleaner assembly instead of the stock dual-stud setup. Manufactured using high quality materials this kit features triple chrome plated parts.

Product Features:

For 1987-1995 Chevrolet 305-350 engines
Includes stock height valve covers & T-bolts
Includes oil filler caps, pcv vent filter
Includes air cleaner Z-Stud
Chrome engine kit

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$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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$224.99

Throttle linkage kit for street tunnel ram. Use for sideways mounted carburetors only. Use Holley PN(0-9776) for sideways mounted applications. Not legal for sale or use on pollution controlled motor vehicles.

Product Features:

Throttle Linkage Kit for Street Tunnel Ram
Use for Sideways Mounted Carburetors Only
Use Holley PN[0-9776] For Sideways Mount Apps

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$79.99

Manufactured from cellulose and nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For OE replacement, high performance street, drag race and oval track.

Product Features:

Made of high temp silicone or nitrile blend rubber
Torque limiters to prevent over tightening
One piece molded rubber
Fits left and right hand dipsticks

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$89.99

Finish your custom engine job with these show quality grade 5 chromed 12-point bolts, includes AN washers which have no exposed shoulder for a professional appearance. Includes (12) 3/8-16 x 1 inch bolts with (12) 3/8 inch AN washers.

Product Features:

Chrome plated
Grade 8
12-point head
AN washers with no exposed shoulder for a professional appearance

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$31.99

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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$39.99

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

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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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$42.99

This Mr. Gasket Water Pump Bolt Set includes chrome plated grade 5 hex head fasteners and AN style washers to install the water pump on your small block Chevrolet with the short style water pump. AN washers have no exposed shoulder which offers a professional appearance. Includes one 3/8 inch-16 x 2-1/2 bolt, three 3/8 inch-16 x 1-3/4 inch bolts, and four 3/8 inch AN washers.

Product Features:

Chrome plated
Grade 5
AN washers with no exposed shoulder for a professional appearance

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$23.29

Magnum Roller 1.72 Ratio Rocker Arm for BBC, Ford 429-460, 351C/M with 7/16" Stud

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$217.99

These Magnum Roller Rocker Arms for Chevy V8 265-400 and V6 200-262 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed

Product Features:

Roller tip reduces friction while stiff design and superior ratio accuracy yield more effective valve lift
For applications with less than 350 lbs. of open spring pressure
Constructed from 8620 chromemoly steel, a superior material that will not flex and ensures maximum lift
Ultimate street roller rocker arm designed for serious performance enthusiasts

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$64.99

Product Features:

Solid Bushing Chain Resists Stretching
For Use with Stock or Edelbrock Camshafts
Stressproof Steel Crank Gears
3 Keyway Setting Points To Ensure Accurate Timing
True Bearing Surface Rolls with the Sprockets
50 State Street Legal

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$83.99

COMP Cams Hi-Tech Roller Race Timing Sets include cast iron camshafts gears, induction hardened billet steel crank sprockets, and pre-stretched, heat-treated double roller chains with heavy-duty large pin design. They feature 3 keyway crank sprockets for

Product Features:

Cast iron camshaft gear and induction hardened billet steel crank sprocket
Pre-stretched, heat-treated true double roller chain with heavy-duty large pin design; chain available separately
Ideal for all street performance and race applications
Features 3 keyway crank sprocket for 4-degree incremental adjustability, 4-degree maximum advance/retard
Dynamically balanced and quality checked for run-out tolerances

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$61.99

Product Features:

4.125 in. Cylinder Bore Diameter
0.039 in. Thickness
8.7cc Volume
Charcoal Color
Two Piece Configuration

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$42.49

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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$71.99

Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermo conductivity (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. Gasket bore 4.100 inch, Compressed thickness 0.028 inch

Product Features:

Five layer (graphite core/perforated steel outer layers) composite construction
Graphite core is excellent transferring 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

Popular 1991 GMC C2500 Performance Engines Categories

Performance Engine Coolant Thermostats

Performance Intake Manifolds

Performance Engine Dress-Up Kits

Performance Engine Water Pumps

Performance Engine Cylinder Head Gaskets

Performance Engine Camshaft and Lifter Kits

Performance Engine Harmonic Balancers

Performance Engine Intake Manifold Gaskets

Performance Engine Timing Sets and Components

Performance Engine Valve Springs

Performance Engine Valve Cover Gasket Sets

Performance Engine Rocker Arms

Performance Engine Camshafts

Performance Engine Oil Pan Gaskets

Performance Intake Manifold Hardware

Performance Engine Valve Lifters

Performance Engine Main Bearing Gasket Sets

Performance Engine Push Rod Guideplates

Performance Engine Push Rods

Performance Engine Valve Spring Retainer

Performance Torque Converters

Performance Engine Valve Stem Seal Sets

Performance Engine Camshaft Bolts

Most Popular Performance Intake Manifolds for 1991 GMC C2500s

Enhance your 1991 GMC C2500 with one of the 5 Performance Intake Manifolds we have in stock, starting at just $30.49.

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$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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$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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$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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$435.99

Product Features:

High Rise/Dual Plane Design For Maximum Torque
Fully CNC Machined For A Perfect Fit
Square Bore Carburetor Flange
Exhaust Crossover For Improved Street Drivability
Permanent Mold Casting Process
Lighter/Smoother/Better Looking
More Consistent Castings

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$286.99

Product Features:

2000-6500 RPM Power Band
Single Plane/Open Plenum Design
No Provision For Divorced Or Hot Air Choke
Square Flange Carburetor Mounting

Best-Selling 1991 GMC C2500 Performance Engine Intake Manifold Gaskets

Upgrade your C2500 with one of our 5 best-selling Performance Engine Intake Manifold Gaskets, earning an average 4.5 stars rating across 18 reviews.

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$35.49

Mr. Gasket Ultra-Seal Intake Manifold Gasketss 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 original equipment 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

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$27.99

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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$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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$28.99

Product Features:

Clean Positive Seal
Embossed Silicone Bead Surrounding The Port
Matched To Manifolds And Cylinder Heads

Top-Quality Performance Engine Cylinder Head Gaskets for 1991 GMC C2500s

Choose a high-quality OEM or aftermarket Performance Engine Cylinder Head Gasket for GMC C2500s and enjoy top-notch performance from $38.99.

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$42.49

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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$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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$64.99

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

from

$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

from

$53.99

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

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

from

$71.99

Five layer (graphite core/perforated steel outer layers) composite construction
Graphite core is excellent transferring 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

from

$38.99

Mr. Gasket Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. With today’s extreme compression ratios you need stronger more durable gaskets. Mr. Gasket steel shim gaskets are made from .020 inch steel shim stock which is thinner than most composite gaskets increasing engine compression. Stress formed embossments will seal the extreme cylinder pressure.

Product Features:

Manufactured from .020″ steel shim stock.
Thinner than composition head gaskets – increases engine compression.
Stress formed embossments seal extreme cylinder pressures.
For high performance street, drag race and oval track use.

Our Top Pick for a 1991 GMC C2500 Performance Engine Harmonic Balancer

Invest in a durable Performance Engine Harmonic Balancer for your 1991 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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from

$15.49

Has A Zinc Dichromate Finish
Made Of High Quality Grade 8 Steel
Has A Tall Hex Head To Prevent Wrench Slipping Off
Extra Thick Parallel Ground Washer
Washer Provides More Accurate And Uniform Torque

Top-Rated Performance Engine Coolant Thermostats for 1991 GMC C2500s

Make a smart move for your 1991 GMC C2500 with products all priced from $29.99 to $32.49.

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$29.99

Opens At 180 Degrees
Designed to Resist Large Variations of Coolant Pressure at High RPM
Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
For High Performance Street, Drag Race, and Oval Track
Copper & Brass Construction – Resists Corrosion
High Flow

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$29.99

Opens at 160 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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$32.49

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

Top-Rated Performance Engine Brands For Your 1991 GMC C2500

When it comes to finding the perfect Performance Engine for your 1991 GMC C2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 7 trusted brands. We carry the most popular Performance Engine brands including Edelbrock, Competition Cams, and FEL-PRO Performance, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $33.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1991 GMC C2500, providing peace of mind with parts that meet or exceed OEM standards.

Popular Edelbrock 1991 GMC C2500 Performance Engines

If you’re looking for a top-quality Performance Engine for your 1991 GMC C2500, Advance Auto Parts has exactly what you need with our selection of Edelbrock Performance Engines. We have 3 Edelbrock Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $64.99 and an average cost of $190.66, you’ll find the perfect Performance Engine for your needs and budget. Edelbrock Performance Engines for the 1991 GMC C2500 come highly rated, with over 4 customer reviews and an impressive average rating of 4.4 stars. Choosing a Edelbrock Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $159.99

(1)

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

“Excellent product.”

from $64.99

(2)

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

“Used with the smallest Comp Thumpr Cam, good to 5500 RPM, Cost is great, No valve float. I would use again with a samll to medium cam and 416 heads.”

from $346.99

(1)

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

“product fit as described , no complaints”

Top-Quality Competition Cams 1991 GMC C2500 Performance Engines

For those in search of a high-quality Performance Engine for their 1991 GMC C2500, 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 $298.66, giving you a range of options to suit your budget. Backed by over 3 customer ratings and an average rating of 4.2 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.

from $637.99

(1)

High Energy 218/218 Hydraulic Flat Cam/Lifter Kit

“Perfect replacement part for my 1986 Olds 442. Works as expected.”

from $223.99

(1)

Valve Seals, O-Ring 11/32" 1 St

“Replaced as original, super easy to install!”

from $33.99

(1)

(16) Positive Stop PTFE Valve Seals: for 3/8" Valves and .530" Guides

“As good as OEM.”

FAQs for 1991 GMC C2500 Performance Engines

What are the best-selling Performance Engines for 1991 GMC C2500s?

Out of 178 Performance Engines that fit 1991 GMC C2500s, the following parts are the top sellers:

Ultra Seal: Harmonic Balancer Bolt/Washer Kit (89012650) – $15.49
Bolt Kit Intake Hex Head (22905656) – $10.99
Lower Intake Manifold Gasket Set: 9 Piece Set (19781770) – $27.99

What’s the price range for 1991 GMC C2500 Performance Engines?

The prices of Performance Engines for the 1991 GMC C2500 range from $10.99 up to $1,214.00 for the most premium parts.

What is the average price of a Performance Engine for a 1991 GMC C2500?

The average price for Performance Engines for the 1991 GMC C2500 is $344.03. 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 GMC C2500 model years?

Yes, we carry Performance Engines for 19 model years of GMC C2500s between 1979 and 2000. The following model years are the most popular for Performance Engine purchases: 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, and 1992.

What are the cheapest Performance Engines for my 1991 GMC C2500?

The cheapest 1991 GMC C2500 Performance Engines we carry are:

Bolt Kit Intake Hex Head (22905656) – $10.99
10 Degree Steel Retainer for 26120 Beehive Spring (50289146) – $10.99
7 Degree Steel Retainer for 3/8" Valve with 1.437"-1.500" Spring (50289111) – $10.99
Magnum 7.300" Long, .080" Wall, 5/16" Diameter Pushrod (50289600) – $14.99
Ultra Seal: Harmonic Balancer Bolt/Washer Kit (89012650) – $15.49

Does Advance Auto Parts sell Performance Engines for any other 1991 GMC models?

Yes. We stock Performance Engines for 19 other popular 1991 GMC models. Some of the most popular are 1991 Jimmy Performance Engines, 1991 K2500 Performance Engines, 1991 K1500 Performance Engines, 1991 C1500 Performance Engines, and 1991 Sonoma Performance Engines.

What are the top-rated Performance Engines that fit the 1991 GMC C2500?

The one 1991 GMC C2500 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 1991 GMC C2500?

As of 6/2/26, these are some of the most in-demand types of Performance Engines for a 1991 GMC C2500:

Can I get help with 1991 GMC C2500 Performance Engine orders?

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

What is your return policy for GMC C2500 Performance Engines?

Advance Auto Parts keeps returns simple. For new GMC C2500 Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1991 GMC C2500 Performance Engines

Mr. Gasket – Cam Bolt Lock Plate Kit (Part No.948G)

Competition Cams – Steel Retainer for Ford 4.6L 3 Valve with 26113/26125 Beehive Springs (Part No.710-1)

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

Competition Cams – Raised 1 Piece Guide Plate Set Chevrolet Big Block With 3/8" Pushrod 7/16" Stud (Part No.4806-8)

Edelbrock – Pushrod Set for S/B Chevy (Part No.9646)

Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.945G)

Edelbrock – Intake Manifold Gasket for 1991 & Later Rectangular port 454 B/B Chevy (Part No.7202)

Competition Cams – (16) Positive Stop PTFE Valve Seals: for 3/8" Valves and .530" Guides (Part No.505-16)

Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam (Part No.11-238-3)

Edelbrock – Sure Seat Valve Springs for Chevy 262-400 V8 1957-95 (Part No.5802)

Mr. Gasket – Rear Main Seal Gasket (Part No.1960)

Competition Cams – XE Computer Controlled 206/212 Hydraulic Flat Cam K-Kit (Part No.K12-249-4)

Spectre – Engine Kit SB Chev Ctr Bolt (Part No.5428)

B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)

Edelbrock – Side-Mount Throttle Linkage for S/B Chevy #7110 Street Tunnel Ram Manifold (Part No.7071)

Mr. Gasket – Engine Sealing (Part No.6560)

Mr. Gasket – Intake Bolt Kit (Part No.5003)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1603)

Competition Cams – Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6 (Part No.875-1)

Weiand – Action Plus Water Pumps (Part No.9240P)

Mr. Gasket – Bolt Water Pump (Part No.4996)

Competition Cams – Magnum Roller 1.72 Ratio Rocker Arm for BBC, Ford 429-460, 351C/M with 7/16" Stud (Part No.1411-1)

Competition Cams – MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST (Part No.1412-16)

Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7809)

Competition Cams – TIMING SET, HIGH TECH SMALL BLOCK CHEVY 1 EA (Part No.3100)

Edelbrock – Cylinder Head Gasket Set for Chevrolet, 4.125 Bore Size (Part No.7310)

FEL-PRO Performance – Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (Part No.1003)

Mr. Gasket – Head Gasket (Part No.1134G)

Edelbrock – Performer Intake Manifold for 1987-95 Small Block Chevy, Satin Finish (Part No.2104)

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

Edelbrock – Performer Intake Manifold for 1987-95 Small-Block Chevy, Black Finish (Part No.21043)

Weiand – Stealth; Intake Manifold (Part No.8018)

Weiand – X-CELerator; Intake Manifold (Part No.7547-1)

Mr. Gasket – Ultra-Seal Intake Manifold Gasket with Silicone Beading (Part No.5821)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 9 Piece Set (Part No.1212)

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

Mr. Gasket – Intake Gasket (Part No.143)

Edelbrock – Intake Manifold Gasket for 1991 & Later Rectangular port 454 B/B Chevy (Part No.7202)

FEL-PRO Performance – Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (Part No.1003)

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.1037)

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

FEL-PRO Performance – Stainless steel core laminate Engine Cylinder Head Gasket (Part No.1047)

Mr. Gasket – Head Gasket (Part No.1134G)

Mr. Gasket – Head Gasket (Part No.1130G)

Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.945G)

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

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