1968 GMC C15/C1500 Suburban Performance Engines

Name: Torque Converter, Nitrous Holeshot 3000
Brand: B & M
SKU: 20481
Price: 899.99 USD

Keep Your 1968 GMC C15/C1500 Suburban in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1968 GMC C15/C1500 Suburban 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 Coolant Thermostats, 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, FEL-PRO Performance, and B & M. For example, Competition Cams Performance Engines start at just $33.99 with an average 4.1 star rating. FEL-PRO Performance and B & M offer similar pricing and quality, backed by strong customer feedback. With over 73 reviews and a solid 5 star average, you can shop with confidence knowing other GMC C15/C1500 Suburban owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1968 GMC C15/C1500 Suburban Performance Engine at Advance Auto Parts is around $440.52, with a range that starts at $10.99 and goes up to $1,545.99. With 120 options in stock from 7 trusted brands, finding the right fit is easy. Popular picks like Premium Quality Thermostat Gasket with Solid Aluminum Carrier, Lower Intake Manifold Gasket Set: 9 Piece Set, and High Performance Thermostat start at just $27.99 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 Distributors and Performance Fuel Systems. At Advance Auto Parts, we’re here to help you keep your 1968 GMC C15/C1500 Suburban in peak condition, inside and out.

Looking for the perfect Performance Engine for your 1968 GMC C15/C1500 Suburban? 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 C15/C1500 Suburban. Whether you’re driving a 1968 model or another popular model year like 1967, 1969, 1970, 1971, 1972, 1973, and 1974, we’ve got you covered. Purchasing Performance Engines from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Engines that fit your vehicle.

Essential 1968 GMC C15/C1500 Suburban Performance Engines

from

$899.99

Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.

Product Features:

2800-3200 RPM
Small And Big Blocks
Serious Performance
Furnace Brazed
Fully Balanced

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$42.99

Mr. Gasket Performance Valve Cover Gaskets are high-density cork/rubber blend gaskets that use evenly sized cork particles distributed evenly throughout the rubber binder. The result is a compressible valve cover gasket without leak paths. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability. For original equipment replacement, high performance street, drag race and oval track use.brbrThese gaskets are .312 inch thick. That’s substantially thicker than stock which can allow for additional valve train clearance. brbrFits Chevrolet 262,265,267,283,307,327,350,400 Gen I Small Block with Perimeter Bolt Valve Covers.

Product Features:

Provides Excellent Flange Sealing And Durability
For High-Performance Street, Drag Race & Oval Track Use

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$1251.99

Product Features:

Complete Single For Flat Tappet
100cc Combustion Chamber Volume
290cc Intake/110cc Exhaust Runner Volume
2.19 in. Intake/1.88 in. Exhaust Valve Diameter
0.562 in. Deck Thickness

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$48.99

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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$27.99

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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$78.99

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

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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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$1152.99

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

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$258.99

HYDRAULIC – Xtreme Energy: Very strong mid-range torque and throttle response, 2200+ stall.

Product Features:

HYDRAULIC – Xtreme Energy: Very strong mid-range torque and throttle response, 2200+ stall.
274/286 Advertised Duration, 230/236 Duration @ .050″, .490″/.490″ Lift, 110 Lobe Separation
Valve spring upgrade required
Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

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$249.99

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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$31.49

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

Product Features:

Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
With steel core to provide ultimate excellent blowout resistance.
Not intended for use in emission controlled vehicles.

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$73.99

These grade 8 alloy steel, longer length bolts are designed to compensate for thread length lost when using head bolt washers. This allows increased torque and clamping. Set of 16 does one cylinder head.

Product Features:

Cylinder Head Bolts
Longer-Than-Stock
High Quality Grade 8 Alloy
Increase Torque Settings
Higher Clamp Loads On Gasket

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$476.99

Rocker Arms, CB 1.7 7/16 Ultra Pro Mag

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$34.99

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

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$20.99

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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$34.99

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

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$799.99

Product Features:

Great For Street Machines/Street Rods/Muscle Cars
Two Piece Design
Individual D-Shaped Runners
Optimized For Broad Power Range/Large Plenum Area
Can Be Used For Blow-Through Superchargers
Fully CNC Machined For A Perfect Fit
No Exhaust Crossover

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$100.99

Valve spring retainers for use OE cast iron heads. Superior quality heat-treated steel. Machined for strength with black oxide finish. Finish ensures rust and corrosion protection.

Product Features:

Valve Spring Retainers for Use OE Cast Iron Heads
Superior Quality Heat-Treated Steel
Machined for Strength with Black Oxide Finish
Finish Ensures Rust and Corrosion Protection

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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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$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

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$223.99

VALVE SEALS, O-RING 11/32″ 1 ST

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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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$34.99

Precision die-cast for a great fit, these water necks are first polished to a high luster, then chrome plated. Comes with gasket and mounting bolts.

Product Features:

Prevents Water Leaks
Precision Die Cast

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$39.99

Spectre’s Chevrolet water neck fits Chevy V8 engines and features a 90 degree neck with a 360 degree swivel design for a custom look and fit. This water neck has been designed around the OEM specifications, has a height of 2-7/8 inches and has a polished aluminum finish for a lasting look that fits great. This water neck includes the allen bolts and sealing O-ring.

Product Features:

Fits Chevy V8 engines
90 degree neck with a 360 degree swivel design
2-7/8 inch height
Includes sealing O-ring and allen bolts
Polished aluminum finish
Easy to install

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$20.99

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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$9.99

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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$155.99

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
Dyno Tested And Street Proven
Great Match to Edelbrock Camshaft Kit

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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 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

Popular 1968 GMC C15/C1500 Suburban Performance Engines Categories

Performance Engine Coolant Thermostats

Performance Intake Manifolds

Performance Water Outlet Gaskets

Performance Engine Water Pumps

Performance Water Outlets

Performance Engine Cylinder Head Gaskets

Performance Engine Camshaft and Lifter Kits

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 Cylinder Head Bolts

Performance Engine Push Rod Guideplates

Performance Engine Timing Cover Gasket Sets

Performance Engine Push Rods

Performance Engine Valve Spring Retainer

Performance Torque Converters

Performance Engine Cylinder Heads

Performance Engine Camshaft Bolts

Performance Engine Valve Stem Seal Sets

Most Popular Performance Intake Manifolds for 1968 GMC C15/C1500 Suburbans

Enhance your 1968 GMC C15/C1500 Suburban with one of the 5 Performance Intake Manifolds we have in stock, starting at just $387.99.

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$492.99

Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RPM street-driven power. Dual-plane high-rise intake with 180 degree firing order. Produces incredible top-end horsepower. Retains good throttle response and acceleration. Larger plenum and runners maximize other upgrades. Edelbrock total power package maximizes gains. Available in cast, polished or endurashine finish.

Product Features:

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
Dual-Plane High-Rise Intake w/180 deg Firing Order
Produces Incredible Top-End Horsepower
Retains Good Throttle Response and Acceleration
Larger Plenum and Runners Maximizes Other Upgrades
Edelbrock Total Power Package Maximizes Gains

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$838.99

For 3500 to 7500 PRM. Use where low-end torque is not a prime factor. Great for engines with slightly modified heads. HEI ignition will not clear manifold. Street machines, street rods, pro-street and marine.

Product Features:

For 3500 to 7500 RPM
Use Where Low-End Torque is Not a Prime Factor
Great For Engines w/Slightly Modified Heads
Top Has Vacuum Outlet for Power Brakes
Will Accept Forward and Sideways Mounted Carbs
Carburetor Center-to-Center Dimensions 9.38 in
HEI Ignition Will Not Clear Manifold
Street Machines; Street Rods; Pro-Street; Marine

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$811.99

Polished Version of Edelbrock PN[7561]
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
Dual-Plane High-Rise Intake w/180 deg Firing Order
Produces Incredible Top-End Horsepower
Retains Good Throttle Response and Acceleration
Larger Plenum and Runners Maximizes Other Upgrades

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$425.99

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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$387.99

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
Will Not Fit Under Corvette Hoods
Available in Multiple Finishes
Use Choke Rod PN[9179] for Stock Carburetor

Best-Selling 1968 GMC C15/C1500 Suburban Performance Engine Coolant Thermostats

Upgrade your C15/C1500 Suburban with one of our 3 best-selling Performance Engine Coolant Thermostats, earning an average 4 stars rating across 32 reviews.

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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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$29.49

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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$31.99

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-Quality Performance Engine Cylinder Head Gaskets for 1968 GMC C15/C1500 Suburbans

Choose a high-quality OEM or aftermarket Performance Engine Cylinder Head Gasket for GMC C15/C1500 Suburbans and enjoy top-notch performance from $37.99.

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from

$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

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$66.99

Product Features:

4.37 in. Cylinder Bore Diameter
0.039 in. Thickness (Rect. Port)
0.38 in. Thickness (Oval Port)
9.7cc Vol. (Rect. Port)/10.05cc Vol. (Oval Port)
Two Piece Configuration

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$37.99

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.

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$53.99

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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$139.99

Product Features:

Head: 4.370″ Bore/0.039″ Thick/9.70cc Vol.
Intake: 1.82″x2.54″ Port/.060″ Thick
Exhaust: 1.940″ Round Port
5/16″ Valve Cover
Multi Piece Configuration

Top Picks for 1968 GMC C15/C1500 Suburban Performance Engine Intake Manifold Gaskets

Invest in one of our 7 durable Performance Engine Intake Manifold Gaskets for your 1968 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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$56.99

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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$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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$34.99

Product Features:

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

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$46.99

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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$41.99

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. Comes complete with front & rear manifold end seals. 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
Complete with manifold end seals & distributor gaskets if applicable
For OE replacement, high performance street, drag race and oval track use

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$55.99

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

from

$49.99

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

Top-Rated Performance Engine Valve Cover Gasket Sets for 1968 GMC C15/C1500 Suburbans

Make a smart move for your 1968 GMC C15/C1500 Suburban with products all priced from $25.99 to $49.99.

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$49.99

These are high quality gaskets that works well on those hard to seal applications. The low density fiber & rubber blend gasket material seals those minor head imperfections with a low clamp force. At .312 inch, the extra thickness can also offer slightly more clearance for roller rockers. Ideal for all those high performance applications where you take the valve covers off and on a lot, and sticking is a problem.brbrFits all 1965-2000 Chevy Big Blocks: 366,396,402,427,454 including GM (General Motors) Gen VI Crate Engines like the 502 and 572.

Product Features:

These Are A Cork Rubber Blend
Extra Thick 5/16 In Creates Positive Seal
Also Available In Standard Thickness
For OE Replacement And High Performance Apps

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$25.99

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

Product Features:

Die cut silicone rubber gaskets conform to out-of-flat covers
Great for on-again/off-again situations
Not intended for use in emission controlled vehicles.

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$29.99

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.

Top-Rated Performance Engine Brands For Your 1968 GMC C15/C1500 Suburban

When it comes to finding the perfect Performance Engine for your 1968 GMC C15/C1500 Suburban, 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 FEL-PRO Performance, 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 $33.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1968 GMC C15/C1500 Suburban, providing peace of mind with parts that meet or exceed OEM standards.

Popular FEL-PRO Performance 1968 GMC C15/C1500 Suburban Performance Engines

If you’re looking for a top-quality Performance Engine for your 1968 GMC C15/C1500 Suburban, Advance Auto Parts has exactly what you need with our selection of FEL-PRO Performance Performance Engines. We have 2 FEL-PRO Performance Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $43.99 and an average cost of $54.49, you’ll find the perfect Performance Engine for your needs and budget. FEL-PRO Performance Performance Engines for the 1968 GMC C15/C1500 Suburban come highly rated, with over 2 customer reviews and an impressive average rating of 4.2 stars. Choosing a FEL-PRO Performance Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $64.99

(1)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

“Have not had a chance to install, but have used FelPro in the past with good results.”

from $43.99

(1)

Engine Crankshaft Seal Kit

“no better on the market”

Top-Quality Competition Cams 1968 GMC C15/C1500 Suburban Performance Engines

For those in search of a high-quality Performance Engine for their 1968 GMC C15/C1500 Suburban, 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 $310.66, giving you a range of options to suit your budget. Backed by over 3 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.

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 $259.99

(1)

Xtreme Energy 212/218 Hydraulic Flat Cam

“Great product”

from $33.99

(1)

VALVE SEALS, TEFLON 3/8" 1 ST

“As good as OEM.”

FAQs for 1968 GMC C15/C1500 Suburban Performance Engines

What are the best-selling Performance Engines for 1968 GMC C15/C1500 Suburbans?

Out of 120 Performance Engines that fit 1968 GMC C15/C1500 Suburbans, the following parts are the top sellers:

Premium Quality Thermostat Gasket with Solid Aluminum Carrier (6900023) – $34.99
Lower Intake Manifold Gasket Set: 9 Piece Set (19781770) – $27.99
High Performance Thermostat (22903641) – $31.99

What’s the price range for 1968 GMC C15/C1500 Suburban Performance Engines?

The prices of Performance Engines for the 1968 GMC C15/C1500 Suburban range from $10.99 up to $1,545.99 for the most premium parts.

What is the average price of a Performance Engine for a 1968 GMC C15/C1500 Suburban?

The average price for Performance Engines for the 1968 GMC C15/C1500 Suburban is $440.52. 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 C15/C1500 Suburban model years?

Yes, we carry Performance Engines for 6 model years of GMC C15/C1500 Suburbans between 1967 and 1974. The following model years are the most popular for Performance Engine purchases: 1974, 1973, 1972, 1971, 1970, 1969, and 1967.

What are the cheapest Performance Engines for my 1968 GMC C15/C1500 Suburban?

The cheapest 1968 GMC C15/C1500 Suburban Performance Engines we carry are:

10 Degree Superlock Steel Retainer for 1.500"-1.550" OD Valve Spring (50289129) – $10.99
10 Degree Steel Retainer for 26120 Beehive Spring (50289146) – $10.99
10 Degree Superlock Steel Retainer for 1.500"-1.550" OD Valve Spring (50289496) – $10.99
7 Degree Steel Retainer for 3/8" Valve with 1.437"-1.500" Spring (50289111) – $10.99
Solid Lifter for Cadillac 472-500 and Chevrolet (50289510) – $15.99

Does Advance Auto Parts sell Performance Engines for any other 1968 GMC models?

Yes. We stock Performance Engines for 13 other popular 1968 GMC models. Some of the most popular are 1968 C15/C1500 Pickup Performance Engines, 1968 K15/K1500 Pickup Performance Engines, 1968 K25/K2500 Pickup Performance Engines, 1968 K15/K1500 Suburban Performance Engines, and 1968 K25/K2500 Suburban Performance Engines.

What types of Performance Engines do you sell for my 1968 GMC C15/C1500 Suburban?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1968 GMC C15/C1500 Suburban:

Can I get help with 1968 GMC C15/C1500 Suburban 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 C15/C1500 Suburban Performance Engines?

Advance Auto Parts keeps returns simple. For new GMC C15/C1500 Suburban Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

1968 GMC C15/C1500 Suburban Performance Engines

B & M – Torque Converter, Nitrous Holeshot 3000 (Part No.20481)

Mr. Gasket – Valve Cover Gasket Set (Part No.179)

Edelbrock – Performer Big-Block Chevy Oval Port Hydraulic Flat Tappet Cam (Part No.60499)

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

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

Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7810)

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

Competition Cams – Big Mutha’ Thumpr 243/257 Hydraulic Roller Cam/Lifter Kit (Part No.CL12-602-8)

Competition Cams – Xtreme Energy 230/236 Hydraulic Flat Cam (Part No.12-246-3)

Weiand – Action +Plus; Water Pump (Part No.9242P)

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1819)

Mr. Gasket – Ultra Seal: Cylinder Head Bolts (Part No.941G)

Competition Cams – Rocker Arms, CB 1.7 7/16 Ultra Pro Mag (Part No.1620-16)

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

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

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

Weiand – Stealth Ram; Intake Manifold (Part No.7540)

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9721)

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

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

Competition Cams – Set of 16 O-Ring Valve Seals for Stock Guide Size, 11/32" Valve Stem (Part No.501-16)

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

Mr. Gasket – Water Neck (Part No.9845)

Spectre – Water Neck; Chevy 90 Degree (Part No.4933)

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

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

Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5894)

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

Edelbrock – RPM Air-Gap Big Block Chevy 2-R Intake Manifold (Part No.7562)

Edelbrock – Street Tunnel Ram Big Block Chevy 2-O Intake Manifold (Part No.7115)

Edelbrock – RPM Air-Gap Big Block Chevy 2-O Polished Intake Manifold (Part No.75611)

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

Edelbrock – Performer 2-O Intake Manifold for 1965-90 Big-Block Chevy w/Oval Port Heads (Part No.2161)

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)

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1037)

Edelbrock – Cylinder Head Gasket Set for Chevrolet (Part No.7302)

Mr. Gasket – Head Gasket (Part No.1131G)

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

Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Chevrolet (Part No.7362)

Mr. Gasket – Ultra Seal: Intake Gasket (Part No.5819)

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

Edelbrock – Intake Manifold Gasket for 1965-1990, Oval port 396-402-454 B/B Chevy (Part No.7203)

Mr. Gasket – Ultra Seal: Intake Gasket (Part No.5828)

Mr. Gasket – Intake Gasket Set – Standard Duty – Big Block Chevy With Stock Rectangle Ports – 1.75"W X 2.50"H (Part No.108)

Mr. Gasket – Ultra Seal: Intake Gasket (Part No.5818)

Mr. Gasket – Ultra Seal: Intake Gasket (Part No.5817)

Mr. Gasket – Ultra Seal: Valve Cover Gasket Set (Part No.5863)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1605)

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1606)