1991 GMC C3500HD Performance Engines

Name: High Energy 206/206 Hydraulic Flat Cam K-Kit
Brand: Competition Cams
SKU: K12-205-2
Price: 1201.99 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1991 GMC C3500HD 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 C3500HD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Rocker Arms, 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. For example, Competition Cams Performance Engines start at just $898.99 with an average 4.1 star rating. With over 42 reviews and a solid 4 star average, you can shop with confidence knowing other GMC C3500HD owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1991 GMC C3500HD Performance Engine at Advance Auto Parts is around $383.31, with a range that starts at $9.99 and goes up to $1,201.99. With 42 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers, Ultra Seal: Harmonic Balancer Bolt/Washer Kit, and Cylinder Head Dowel Pins start at just $17.79 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 Ignition Products and Performance Radiators. At Advance Auto Parts, we’re here to help you keep your 1991 GMC C3500HD in peak condition, inside and out.

Looking for the perfect Performance Engine for your 1991 GMC C3500HD? 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 C3500HD. 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 C3500HD Performance Engines

from

$1201.99

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

Product Features:

Good blend of efficiency and performance.
Perfect choice for performance street rebuilds.
Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.

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$963.99

SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

Product Features:

Cam and lifter kit for Small Block Chevy engines
CL-Kit includes cam, lifters, assembly lube, instructions and decals
HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
287/305 Advertised Duration, 235/249 Duration @ .050″, .489″/.476″ Lift, 107 Lobe Separation
Valve spring upgrade required

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$17.79

Dowel pins are precision machined and case hardened for accurate head alignment. Two per set. 5/16 inch x 5/8 inch

Product Features:

Precision Machined
Case Hardened
Give Accurate Alignment
2 Per Set

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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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$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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$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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$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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$395.99

HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

Product Features:

HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
287/304 Advertised Duration, 235/249 Duration @ .050″, .510″/.495″ Lift, 107 Lobe Separation
Valve spring upgrade required

from

$259.99

HYDRAULIC – Xtreme Energy: Street/strip, 2800+ stall, rough idle. 9.5:1+ compression.

Product Features:

HYDRAULIC – Xtreme Energy: Street/strip, 2800+ stall, rough idle. 9.5:1+ compression.
284/296 Advertised Duration, 240/246 Duration @ .050″, .574″/.578″ Lift, 110 Lobe Separation
Valve spring upgrade required
Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

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$32.49

Secure the harmonic balancer or dampener on your Chevy. Works on original equipment, high performance street, drag or circle track applications. Features a heat treated black oxide coated Grade 8 alloy steel bolt for strength with a tall hex head to prevent wrench from slipping. An extra thick parallel ground washer provides accurate, uniform torque, and a lock washer is also included.

Product Features:

Heat treated black oxide coated Grade 8 alloy steel
Tall hex head bolt to prevent wrench from slipping
Extra thick parallel ground washer provides accurate, uniform torque
Washers Provides More Accurate And Uniform Torque
Grade 8 Alloy Steel

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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

from

$47.49

Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. They provide excellent sealing and durability. 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.
Can be trimmed if necessary for modified port applications.
Complete with manifold end seals and distributor gasket.
For OE replacement, high performance street, drag race and oval track use.

from

$49.99

With Mr. Gasket cam degree bushings you fine tune the camshaft timing of your engine to as little as 1 degree. Even aftermarket timing sets with multiple keyways can’t give the range of adjustment these bushings allow. Retard your camshaft to lower the powerband for more low end torque and midrange horsepower, or advance for more top end power. This kit does even number adjustment 0-8 degrees.

Product Features:

Advance the cam for increased torque and horsepower
Tune your powerband for more end torque or increase top end horsepower
Includes (4) offset bushings and (1) 0 degree bushing
Cam sprocket dowel pin hole must be drilled to .406¿ (13/32¿) dia.
Cam sprocket dowel pin hole must be drilled to .406┐ (13/32┐) dia.
Increase Top-End Horsepower

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$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

from

$9.99

This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.

Product Features:

Made From Cellulose/Nitrile Composition
Provides Excellent Sealing And Durability
These Gaskets Are Die Cut For a Precision Fit
Fits Small Block Chevy V8 Engines 1955-’90
Fits Big Block Chevy V8 Engines 1965-’90
Fits Small Block Chrysler 318/360 1979-’92
Fits Small Block Chrysler 3.9L/5.2L/5.9L Magnum 1992-’03

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$35.49

Edge molded rubber water outlet gasket is reusable, great for engines that require regular disassembling for maintenance. Incorporates solid aluminum carrier for strength and rigidity. Can be used with OE replacement or aftermarket chrome water outlets. Requires no gasket sealer.

Product Features:

Edge Molded Rubber Water Outlet Gasket Is Reusable
Requires No Gasket Sealer
Solid Aluminum Carrier For Strength/rigidity
Reusable – Ideal for Engines That Are Frequently Taken Apart & Reassembled

from

$18.29

These grade 5 socket head bolts are zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8-16 x 1 inch bolts & washers.

Product Features:

Grade 5 socket head bolts are zinc plated for protection and appearance
Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds
Washers Included

from

$35.99

If you are changing your camshaft or replacing the timing set, make sure to replace this seal at the same time! Made from Nitrile rubber.

Product Features:

Nitrile Rubber And High Density Cork
Will Not Shrink Or Stick

Popular 1991 GMC C3500HD Performance Engines Categories

Performance Intake Manifolds

Performance Water Outlet Gaskets

Performance Engine Camshaft and Lifter Kits

Performance Engine Harmonic Balancers

Performance Engine Intake Manifold Gaskets

Performance Engine Timing Sets and Components

Performance Engine Rocker Arms

Performance Engine Camshafts

Performance Intake Manifold Hardware

Performance Engine Cylinder Head Installation Kits

Performance Engine Timing Cover Gasket Sets

Performance Torque Converters

Most Popular Performance Engine Rocker Arms for 1991 GMC C3500HDs

Enhance your 1991 GMC C3500HD with one of the 5 Performance Engine Rocker Arms we have in stock, starting at just $17.79.

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from

$77.99

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

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″

from

$61.99

ENGINE ROCKER ARM

from

$23.29

ENGINE ROCKER ARM

from

$17.79

ENGINE ROCKER ARM

Best-Selling 1991 GMC C3500HD Performance Intake Manifold Hardware

Upgrade your C3500HD with our best-selling Performance Intake Manifold Hardware.

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from

$20.79

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

Top-Quality Performance Engine Intake Manifold Gaskets for 1991 GMC C3500HDs

Choose a high-quality OEM or aftermarket Performance Engine Intake Manifold Gasket for GMC C3500HDs and enjoy top-notch performance from $47.49.

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from

$47.49

Manufactured from cellulose/nitrile composition gasket material.
Provides excellent sealing and durability.
Can be trimmed if necessary for modified port applications.
Complete with manifold end seals and distributor gasket.
For OE replacement, high performance street, drag race and oval track use.

from

$49.99

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

Our Top Pick for a 1991 GMC C3500HD Performance Intake Manifold

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

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from

$18.29

Grade 5 socket head bolts are zinc plated for protection and appearance
Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds
Washers Included

Top-Rated Performance Water Outlet Gaskets for 1991 GMC C3500HDs

Make a smart move for your 1991 GMC C3500HD with products all priced from $9.99 to $35.49.

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from

$9.99

This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.

Product Features:

Made From Cellulose/Nitrile Composition
Provides Excellent Sealing And Durability
These Gaskets Are Die Cut For a Precision Fit
Fits Small Block Chevy V8 Engines 1955-’90
Fits Big Block Chevy V8 Engines 1965-’90
Fits Small Block Chrysler 318/360 1979-’92
Fits Small Block Chrysler 3.9L/5.2L/5.9L Magnum 1992-’03

from

$35.49

Edge Molded Rubber Water Outlet Gasket Is Reusable
Requires No Gasket Sealer
Solid Aluminum Carrier For Strength/rigidity
Reusable – Ideal for Engines That Are Frequently Taken Apart & Reassembled

Top-Rated Performance Engine Brands For Your 1991 GMC C3500HD

When it comes to finding the perfect Performance Engine for your 1991 GMC C3500HD, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Performance Engine brands including Competition Cams, and more, all known for their exceptional customer ratings (average brand rating of 4.1 stars) and competitive prices, as low as $898.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1991 GMC C3500HD, providing peace of mind with parts that meet or exceed OEM standards.

Popular Competition Cams 1991 GMC C3500HD Performance Engines

If you’re looking for a top-quality Performance Engine for your 1991 GMC C3500HD, Advance Auto Parts has exactly what you need with our selection of Competition Cams Performance Engines. We have 2 Competition Cams Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $898.99 and an average cost of $906.99, you’ll find the perfect Performance Engine for your needs and budget. Competition Cams Performance Engines for the 1991 GMC C3500HD come highly rated, with over 14 customer reviews and an impressive average rating of 4.1 stars. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $898.99

(1)

High Energy/Marine 218/218 Hydraulic Flat Cam/Lifter Kit

“nearly identical match for the original part”

from $914.99

(13)

Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit

“Worked prefect. Gave me the Hi speed blower back”

FAQs for 1991 GMC C3500HD Performance Engines

What are the best-selling Performance Engines for 1991 GMC C3500HDs?

Out of 42 Performance Engines that fit 1991 GMC C3500HDs, the following parts are the top sellers:

Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (17360285) – $20.79
Ultra Seal: Harmonic Balancer Bolt/Washer Kit (6120237) – $32.49
Cylinder Head Dowel Pins (22903644) – $17.79

What’s the price range for 1991 GMC C3500HD Performance Engines?

The prices of Performance Engines for the 1991 GMC C3500HD range from $9.99 up to $1,201.99 for the most premium parts.

What is the average price of a Performance Engine for a 1991 GMC C3500HD?

The average price for Performance Engines for the 1991 GMC C3500HD is $383.31. 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 C3500HD model years?

Yes, we carry Performance Engines for 10 model years of GMC C3500HDs between 1992 and 2002. 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 C3500HD?

The cheapest 1991 GMC C3500HD Performance Engines we carry are:

Water Outlet Gasket (6120954) – $9.99
Cylinder Head Dowel Pins (22903644) – $17.79
ENGINE ROCKER ARM (50272798) – $17.79
Intake Manifold Bolts (6120970) – $18.29
Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (17360285) – $20.79

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 C2500 Performance Engines, 1991 K1500 Performance Engines, and 1991 C1500 Performance Engines.

What are the top-rated Performance Engines that fit the 1991 GMC C3500HD?

The one 1991 GMC C3500HD Performance Engine we have in stock is the Water Outlet Gasket. It is rated 5 stars and costs $9.99.

What types of Performance Engines do you sell for my 1991 GMC C3500HD?

As of 3/1/26, these are some of the most in-demand types of Performance Engines for a 1991 GMC C3500HD:

Can I get help with 1991 GMC C3500HD 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 C3500HD Performance Engines?

Advance Auto Parts keeps returns simple. For new GMC C3500HD 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 C3500HD Performance Engines

Competition Cams – High Energy 206/206 Hydraulic Flat Cam K-Kit (Part No.K12-205-2)

Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-601-4)

Mr. Gasket – Cylinder Head Dowel Pins (Part No.4375)

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

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

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

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

Competition Cams – Thumpr 235/249 Hydraulic Flat Cam (Part No.11-601-4)

Competition Cams – Xtreme Energy 240/246 Hydraulic Flat Cam (Part No.11-250-3)

Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.7845)

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

Mr. Gasket – Intake Gasket (Part No.116)

Mr. Gasket – Advance And Retard Cam Bushings (Part No.85)

Mr. Gasket – Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (Part No.956G)

Mr. Gasket – Water Outlet Gasket (Part No.740C)

Mr. Gasket – Premium Quality Thermostat Gasket with Solid Aluminum Carrier (Part No.738G)

Mr. Gasket – Intake Manifold Bolts (Part No.955G)

Mr. Gasket – Timing Cover Seal (Part No.17)

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

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

Competition Cams – ENGINE ROCKER ARM (Part No.1828-1)

Competition Cams – ENGINE ROCKER ARM (Part No.1411-1)

Competition Cams – ENGINE ROCKER ARM (Part No.1211-1)

Mr. Gasket – Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (Part No.956G)

Mr. Gasket – Intake Gasket (Part No.116)

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

Mr. Gasket – Intake Manifold Bolts (Part No.955G)

Mr. Gasket – Water Outlet Gasket (Part No.740C)

Mr. Gasket – Premium Quality Thermostat Gasket with Solid Aluminum Carrier (Part No.738G)