1968 GMC C15/C1500 Suburban Performance Engines

Please Select your Vehicle to See Exact Fit Parts

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 Cylinder Head Gaskets, 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 B & M, FEL-PRO Performance, and Competition Cams. For example, B & M Performance Engines start at just $399.99 with an average 4.3 star rating. FEL-PRO Performance and Competition Cams offer similar pricing and quality, backed by strong customer feedback. With over 517 reviews and a solid 4.5 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 $237.62, with a range that starts at $10.39 and goes up to $1,623.99. With 104 options in stock from 6 trusted brands, finding the right fit is easy. Popular picks like Mr. Gasket Water Outlet Gasket, 740C, Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661, and FEL-PRO Performance Engine Intake Manifold Gasket Set, 1212 start at just $10.39 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.

Essential 1968 GMC C15/C1500 Suburban Performance Engines

Mr. Gasket – Mr. Gasket Complete Engine Bolt Kit, 5001 (Part No.5001)

Mr. Gasket Complete Engine Bolt Kit, 5001

from

$223.99
This Mr. Gasket Deluxe Engine Bolt Kit includes chrome plated grade 5 hex head fasteners with AN type washers for the following: Intake Manifold, Timing Cover, Oil Pan, Fuel Pump, Water Neck, Long Water Pump and Headers. The AN washers have no exposed shoulder which offers a professional appearance.
See More

Edelbrock – Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011 (Part No.27011)

Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011

from

$552.99
Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011.
See More

Mr. Gasket – Mr. Gasket Ultra Seal: Competition Screw-In Rocker Arm Studs, 1075 (Part No.1075)

Mr. Gasket Ultra Seal: Competition Screw-In Rocker Arm Studs, 1075

from

$113.99
Mr. Gasket competition screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street and race applications.
See More

Edelbrock – Edelbrock Performer-Plus Hydraulic Flat Tappet Lifter Set, 9738 (Part No.9738)

Edelbrock Performer-Plus Hydraulic Flat Tappet Lifter Set, 9738

from

$134.99
Edelbrock part No: 9738 Performer-Plus lifter set for S/B & B/B Chevy is designed for use with Edelbrock Performer-Plus or equivalent camshafts. Sold in complete sets.
See More

Competition Cams – Competition Cams Camshaft, Sbc 260 High Energy Hydraulic 1 Ea, 12-206-2 (Part No.12-206-2)

Competition Cams Camshaft, Sbc 260 High Energy Hydraulic 1 Ea, 12-206-2

from

$293.99
HYDRAULIC – High Energy: Vans, pickups, 4WD and towing, in 350c.i., good idle, strong mid-range torque. OR High Energy Marine: Single or dual engine with inboard/outboard drive for ski and economy.
See More

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

FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1047

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.
See More

Edelbrock – Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7800 (Part No.7800)

Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7800

from

$66.99
Edelbrock Part No: 7800 Performer-Link timing chain is for use with Edelbrock or stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. Cam sprockets are made from 35,000 psi tensile strength cast iron. Crank sprockets are made from billet SAE-1144 steel and induction heat treated. Four Performer-Link sets are stock replacement parts and 50-state legal (see listings in bold type). All other sets have three keyway setting points to ensure accurate timing selection for early or late-model vehicles. Performer-Link timing sets are not for use above 6500 rpm. Performer roller chain sets are engineered to operate up to 6500 rpm. Never hammer directly on chain or sprockets. You can crack the hardened links and pins and cause early failures. Use a sleeve for installations that require hammering, a brass drift punch may be used if you carefully alternate blows on either side of the sprocket to avoid cocking. Never stretch the chain with a screwdriver. Check for clearance between the timing chain and block and between the chain and front cover before reassembly. Be sure that both cam and crank sprockets are exactly in line with each other. Misalignment can cause chain to break.
See More

Edelbrock – Edelbrock Performer Small-Block Chevy Cylinder Head 64cc Hydraulic Flat Tappet, 60909 (Part No.60909)

Edelbrock Performer Small-Block Chevy Cylinder Head 64cc Hydraulic Flat Tappet, 60909

from

$1157.99
Edelbrock Performer Small-Block Chevy Cylinder Head 64cc Hydraulic Flat Tappet, 60909.
See More

Mr. Gasket – Mr. Gasket Ultra Seal: Valve Cover Gasket Set, 5860 (Part No.5860)

Mr. Gasket Ultra Seal: Valve Cover Gasket Set, 5860

from

$33.59
Ultra-Seal is Mr. Gasket premium valve cover gasket material. It’s manufactured from a high density cork and rubber blend to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair. These gaskets are .187 inch thick.
See More

Competition Cams – Competition Cams Magnum 252/252 Hydraulic Roller Cam and Lifter Kit, CL12-470-8 (Part No.CL12-470-8)

Competition Cams Magnum 252/252 Hydraulic Roller Cam and Lifter Kit, CL12-470-8

from

$1210.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
See More

Competition Cams – Competition Cams Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam K-Kit, K12-602-4 (Part No.K12-602-4)

Competition Cams Big Mutha' Thumpr 243/257 Hydraulic Flat Cam K-Kit, K12-602-4

from

$737.99
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.
See More

FEL-PRO Performance – FEL-PRO Performance PERFORMANCE OIL PAN GASKET SET, 1884 R (Part No.1884 R)

FEL-PRO Performance PERFORMANCE OIL PAN GASKET SET, 1884 R

from

$65.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
See More

Competition Cams – "Competition Cams Valve Springs, 1.250"" Single 1 St, 981-16" (Part No.981-16)

"Competition Cams Valve Springs, 1.250"" Single 1 St, 981-16"

from

$111.99
Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers.
See More

B & M – B & M Holeshot 3000, 20413 (Part No.20413)

B & M Holeshot 3000, 20413

from

$921.99
This Holeshot 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 TH350, 375B (not 350C). Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot 3000 converter is an excellent choice for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. Has both 10.75 and 11.50-inch bolt circles.
See More

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

Mr. Gasket Water Outlet Gasket, 740C

from

$10.39
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.
See More

FEL-PRO Performance – FEL-PRO Performance Engine Crankshaft Seal Kit, 2912 (Part No.2912)

FEL-PRO Performance Engine Crankshaft Seal Kit, 2912

from

$38.99
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.
See More

Mr. Gasket – Mr. Gasket Cylinder Head Dowel Pins, 4377 (Part No.4377)

Mr. Gasket Cylinder Head Dowel Pins, 4377

from

$21.69
Big Block Chevrolet tubular head dowel, .638/.639 inch o.d. (outer diameter) by 1/2 inch. Packaged two per set. These hard to find dowel pins are precision machined then case hardened for accurate alignment in engine assembly.
See More

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

Spectre Bolt Kit Intake Hex Head, 4652

from

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

Competition Cams – "Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16" (Part No.612-16)

"Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16"

from

$43.99
Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights
See More

Top Street Performance – Top Street Performance Chevrolet Small Block Short Neck Satin Aluminum High Flow Mechanical Water Pump, HC8011 (Part No.HC8011)

Top Street Performance Chevrolet Small Block Short Neck Satin Aluminum High Flow Mechanical Water Pump, HC8011

from

$116.99
TSP High Flow Water Pumps offer that extra cooling power you need for your street performance engine. With an 8-blade, cast aluminum anti-cavitation impeller, these flow at about 40% above most stock pumps. The heavy duty bearings and seals keep the shaft stable, ensuring excellent performance and reliability. The housings are cast from lightweight A356-T6 aluminum and come in multiple finishes to achieve any desired aesthetic.
See More

Edelbrock – Edelbrock Front Timing Cover Gasket Set, 6997 (Part No.6997)

Edelbrock Front Timing Cover Gasket Set, 6997

from

$18.99
Edelbrock part No: 6997 Front Timing Cover Gasket set for Small-Block Chevy. Includes front cover gasket and front seal.
See More

Mr. Gasket – "Mr. Gasket Intake Gasket Set – Big Block Chevy, 396-454, Gen Iv, 1965-1990 – Rect Stock Port 1.75"" X 2.5"", 110" (Part No.110)

"Mr. Gasket Intake Gasket Set - Big Block Chevy, 396-454, Gen Iv, 1965-1990 - Rect Stock Port 1.75"" X 2.5"", 110"

from

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

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

Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363

from

$31.99
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.
See More

Mr. Gasket – Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661 (Part No.2661)

Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661

from

$32.99
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
See More

Spectre – Spectre Water Neck Chev Early W/Hdr, 42303 (Part No.42303)

Spectre Water Neck Chev Early W/Hdr, 42303

from

$25.99
Spectre’s Chevrolet V8 water neck fits 1955 – 1965 Chevy 265 – 454 V8 engines and 1956 – 1963 Chevy Corvette engines. This water neck has been designed around the OEM specifications and has a chrome plated finish for a lasting look that fits great. This water neck includes the bolts and sealing O-ring.
See More

Spectre – Spectre Chevrolet Small Block V8 Harmonic Balancer Bolt Kit, 4699 (Part No.4699)

Spectre Chevrolet Small Block V8 Harmonic Balancer Bolt Kit, 4699

from

$8.99
Spectre’s Harmonic Balancer Bolt Kit is designed to fit Chevrolet Small Block 265-400 V8 engines. This grade 8 bolt is 2-1/2 inches long, and features a plated finish for corrosion resistance. This kit also includes a security lock washer.
See More

Mr. Gasket – Mr. Gasket Ultra Seal: Harmonic Balancer Bolt/Washer Kit, 946G (Part No.946G)

Mr. Gasket Ultra Seal: Harmonic Balancer Bolt/Washer Kit, 946G

from

$33.59
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.
See More

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

Enhance your 1968 GMC C15/C1500 Suburban with one of the 7 Performance Intake Manifolds we have in stock, starting at just $18.79.

Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set – Hex Head, 955G (Part No.955G)

Mr. Gasket Intake Manifold Bolt Set - Hex Head, 955G

from

$18.79
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.
See More

Edelbrock – Edelbrock RPM Air-Gap Big Block Chevy 2-O Intake Manifold, 7561 (Part No.7561)

Edelbrock RPM Air-Gap Big Block Chevy 2-O Intake Manifold, 7561

from

$460.99
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.
See More

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

Edelbrock Street Tunnel Ram Big Block Chevy 2-O Intake Manifold, 7115

from

$895.99
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.
See More

Edelbrock – Edelbrock RPM Air-Gap Dual Quad Big Block Chevy Intake Manifold, 7520 (Part No.7520)

Edelbrock RPM Air-Gap Dual Quad Big Block Chevy Intake Manifold, 7520

from

$595.99
Air gap cooler and denser mixture for more power. Street and high performance compatible. Available in cast, polished and endurashine finish.
See More

Edelbrock – Edelbrock Performer 2-O Intake Manifold for 1965-90 Big-Block Chevy, Black Finish, 21613 (Part No.21613)

Edelbrock Performer 2-O Intake Manifold for 1965-90 Big-Block Chevy, Black Finish, 21613

from

$519.99
Edelbrock Performer 2-O Intake Manifold for 1965-90 Big-Block Chevy, Black Finish, 21613.
See More

Weiand – Weiand Stealth Intake Manifold, 8019 (Part No.8019)

Weiand Stealth Intake Manifold, 8019

from

$456.99
Weiand Stealth Intake Manifold, 8019.
See More

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

Weiand Stealth Intake Manifold, 8018

from

$449.99
Weiand Stealth Intake Manifold, 8018.
See More

Best-Selling 1968 GMC C15/C1500 Suburban Performance Engine Cylinder Head Gaskets

Upgrade your C15/C1500 Suburban with one of our 4 best-selling Performance Engine Cylinder Head Gaskets, earning an average 5 stars rating across 1 reviews.

FEL-PRO Performance – FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037 (Part No.1037)

FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037

from

$64.99
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.
See More

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

Mr. Gasket Head Gasket, 1131G

from

$40.29
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.
See More

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

FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1047

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.
See More

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

Mr. Gasket Head Gasket, 1134G

from

$73.99
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
See More

Top-Quality Performance Engine Intake Manifold Gaskets for 1968 GMC C15/C1500 Suburbans

Choose a high-quality OEM or aftermarket Performance Engine Intake Manifold Gasket for GMC C15/C1500 Suburbans and enjoy top-notch performance from $27.99.

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

Mr. Gasket Ultra-Seal Intake Manifold Gasket With Silicone Beading, 5821

from

$36.99
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.
See More

FEL-PRO Performance – FEL-PRO Performance Engine Intake Manifold Gasket Set, 1212 (Part No.1212)

FEL-PRO Performance Engine Intake Manifold Gasket Set, 1212

from

$27.99
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.
See More

Mr. Gasket – Mr. Gasket Intake Gasket, 121 (Part No.121)

Mr. Gasket Intake Gasket, 121

from

$33.59
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.
See More

Edelbrock – Edelbrock Intake Manifold Gasket, 7203 (Part No.7203)

Edelbrock Intake Manifold Gasket, 7203

from

$34.99
Edelbrock part No: 7203 Intake Gaskets for 1965-1990 & later Mark IV, Oval port 396-402-454 Big-Block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology does not use solvents making our gaskets environmentally friendly. Impervious to most chemicals, this synthetic fiber composite provides a high recovery under load. This means that when compressed, the gasket will conform to any imperfections on the sealing surface even using lower flange pressures. A nitrile bead around each port opening makes the seal even better.
See More

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

Mr. Gasket Ultra Seal: Intake Gasket, 5828

from

$49.99
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 is required. For OE replacement, high-performance street, drag race, and oval track use. Includes manifold end seals and distributor gasket.
See More

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

Mr. Gasket Intake Gasket, 143

from

$51.99
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.
See More

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

Mr. Gasket Ultra Seal: Intake Gasket, 5818

from

$59.39
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.
See More

Mr. Gasket – "Mr. Gasket Intake Gasket Set – Big Block Chevy, 396-454, Gen Iv, 1965-1990 – Rect Stock Port 1.75"" X 2.5"", 110" (Part No.110)

"Mr. Gasket Intake Gasket Set - Big Block Chevy, 396-454, Gen Iv, 1965-1990 - Rect Stock Port 1.75"" X 2.5"", 110"

from

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

Edelbrock – Edelbrock Intake Manifold Gasket, 7202 (Part No.7202)

Edelbrock Intake Manifold Gasket, 7202

from

$28.99
Edelbrock part No: 7202 Intake Gaskets for 1991 & later Gen V & VI, Rectangular port 454 Big-block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology does not use solvents making our gaskets environmentally friendly. Impervious to most chemicals, this synthetic fiber composite provides a high recovery under load. This means that when compressed, the gasket will conform to any imperfections on the sealing surface even using lower flange pressures. A nitrile bead around each port opening makes the seal even better.
See More

Our Top Pick for a 1968 GMC C15/C1500 Suburban Performance Water Outlet Gasket

Invest in a durable Performance Water Outlet Gasket for your 1968 GMC, knowing you’re getting trusted brands and expert craftsmanship.

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

Mr. Gasket Water Outlet Gasket, 740C

from

$10.39
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.
See More

Top-Rated Performance Water Outlets for 1968 GMC C15/C1500 Suburbans

Make a smart move for your 1968 GMC C15/C1500 Suburban with products all priced from $32.99 to $33.59.

Mr. Gasket – Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661 (Part No.2661)

Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661

from

$32.99
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
See More

Mr. Gasket – Mr. Gasket O-Ring Style Chrome Water Neck, 2557 (Part No.2557)

Mr. Gasket O-Ring Style Chrome Water Neck, 2557

from

$33.59
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
See More

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 6 trusted brands. We carry the most popular Performance Engine brands including B & M, FEL-PRO Performance, and Competition Cams, and more, all known for their exceptional customer ratings (average brand rating of 4.3 stars) and competitive prices, as low as $64.99. 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 B & M 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 B & M Performance Engines. We have 2 B & M Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $399.99 and an average cost of $492.49, you’ll find the perfect Performance Engine for your needs and budget. B & M Performance Engines for the 1968 GMC C15/C1500 Suburban come highly rated, with over 2 customer reviews and an impressive average rating of 4.3 stars. Choosing a B & M Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
B & M Tork Master 3000, 20402
from $584.99
(1)
B & M Tork Master 3000, 20402
“good parts and very strong”
B & M Tork Master 2400, 20404
from $399.99
(1)
B & M Tork Master 2400, 20404
“The B&M 2400 stall converter was a great choice for my application. It works well on the street and track, increased performance by leaps and bounds. ”

Top-Quality FEL-PRO Performance 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 FEL-PRO Performance Performance Engines. With 1 FEL-PRO Performance 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 $64.99, giving you a range of options to suit your budget. Backed by over 1 customer ratings and an average rating of 4.2 stars, FEL-PRO Performance Performance Engines provide both reliability and excellent performance. Choosing a FEL-PRO Performance Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037
from $64.99
(1)
FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037
“Have not had a chance to install, but have used FelPro in the past with good results.”

FAQs for 1968 GMC C15/C1500 Suburban Performance Engines

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

Out of 104 Performance Engines that fit 1968 GMC C15/C1500 Suburbans, the following parts are the top sellers:

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 $10.39 up to $1,623.99 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 $237.62. 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:

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

What are the top-rated Performance Engines that fit the 1968 GMC C15/C1500 Suburban?

Based on 517 reviews by customers, our 1968 GMC C15/C1500 Suburban Performance Engines have an average customer rating of 4.5 stars. These are the highest-rated categories of Performance Engines for the 1968 GMC C15/C1500 Suburban and their top-rated products:

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

As of 8/2/26, 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.