1974 GMC K25/K2500 Pickup Performance Engines

Essential 1974 GMC K25/K2500 Pickup Performance Engines

Competition Cams – Engine Valve Spring Kit (Part No.911-16)

Engine Valve Spring Kit

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$759.99
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.O.D. Dia. 1 I.D. Dia. 2 Damper Seat Load Open Load Coil Bind Rate (Lbs./In.) Titanium Retainer Steel Retainer Cup Seat Shims 1.524 1.110 Y 122 @ 1.900 309 @ 1.400 1.200 373 721, 732 1732, 741 4779* 4757

Product Features:
  • Seat pressure: 122 lbs. @ 1.900″, Open Pressure: 309 lbs. @ 1.400″
  • O.D.: 1.524″, I.D.: 1.110″
  • Single valve springs with damper
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Mr. Gasket – Head Gasket (Part No.1130G)

Head Gasket

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$32.99
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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Mr. Gasket – Intake Gasket Set – Standard Duty – Big Block Chevy With Oval Ports – 1.75"W X 2.16"H (Part No.107)

Intake Gasket Set - Standard Duty - Big Block Chevy With Oval Ports - 1.75"W X 2.16"H

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$36.49
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 cork 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 cork manifold end seals & distributor gaskets if applicable
  • For OE replacement, high performance street, drag race and oval track use
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B & M – Tork Master 2400 (Part No.20404)

Tork Master 2400

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$339.99
Torque Converter – Tork Master 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost performance torque converter. The Tork Master is an excellent all-around performance street converter. The best value priced street converters available, Tork Master converters come with a new precision pump drive tube and all are pressure tested and fully balanced. The Tork Master torque converter is not recommended for big block or supercharged applications. New alloy steel pump drive tube. Needle thrust bearing when factory equipped. New thrust washer between turbine and cover when required. Due to torque converter core availability, the actual converter size may vary but performance functionality will be as advertised.

Product Features:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
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Competition Cams – Xtreme Energy 250/256 Hydraulic Flat Cam and Lifter Kit Chevrolet Small Block (Part No.CL12-254-3)

Xtreme Energy 250/256 Hydraulic Flat Cam and Lifter Kit Chevrolet Small Block

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$321.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy: Pro Street/bracket, needs good intake, headers, gear and 3300+ stall.

Product Features:
  • Cam and lifter kit for Small Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Xtreme Energy: Pro Street/bracket, needs good intake, headers, gear and 3300+ stall.
  • 294/306 Advertised Duration, 250/256 Duration @ .050″, .519″/.523″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Edelbrock – Performer Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish (Part No.21011)

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

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$566.99
Edelbrock part #21011 Performer intake manifold is designed for street 1955-86 small-block Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent throttle respons
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Edelbrock – Performer Small-Block Chevy Cylinder Head 64cc Hydraulic Flat Tappet (Part No.60909)

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

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$1009.99
Product Features:
  • 50-State Street Legal Aluminum Cylinder Head
  • Out-of-the-Box Bolt-On Performance
  • 64cc Combustion Chambers Improve Performance
  • Retain Stock Compression Ratio
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Mr. Gasket – Water Neck (Part No.9141G)

Water Neck

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$58.99
Chrome water neck with a swivel top allows you to place your coolant hose where you want it to be, not just where the neck allows. Precision die cast for better fitment, 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.

Product Features:
  • Chrome Plated Aluminum
  • O-ring To Prevent Leaks
  • Swivels For Hard To Fit Applications
  • Comes With Allen Head Bolts
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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9730)

Performer Series Retainer (Qty 16)

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$99.99
Product Features:
  • Use W/ Valve Springs Part #5703, 5794
  • Set of 16
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Mr. Gasket – Ultra Seal: Competition Screw-In Rocker Arm Studs (Part No.1074)

Ultra Seal: Competition Screw-In Rocker Arm Studs

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$85.09
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.

Product Features:
  • Black Oxide Coated Grade 8 Steel
  • Kit Contains 16 Studs
  • Easy To Install
  • Heat Treated Steel
  • Prevents Stud Flexing
  • Black Plated Finish
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Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.7845)

Ultra Seal: Harmonic Balancer Bolt/Washer Kit

from

$27.49
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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Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

VALVE SEALS, TEFLON 3/8" 1 ST

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$31.99
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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Mr. Gasket – Ultra Seal: Oil Pan Gasket (Part No.5884)

Ultra Seal: Oil Pan Gasket

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$36.49
Manufactured from cellulose/nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For original equipment replacement, high performance street, drag race and oval track.

Product Features:
  • Manufactured from cellulose/nitrile rubber composition gasket material
  • Provides excellent sealing and durability
  • Complete with molded rubber front/rear oil pan end seals where applicable
  • For OE replacement, high performance street, drag race and oval track use
  • Graphite Non-Wicking Rubber
  • No Cork Particles
  • Easy Removal For Disassembly
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FEL-PRO Performance – PERFORMANCE VALVE COVER GASKET SET (Part No.1602)

PERFORMANCE VALVE COVER GASKET SET

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$23.49
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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Mr. Gasket – Rear Main Seal Gasket (Part No.1960)

Rear Main Seal Gasket

from

$23.99
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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Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7800)

Performer-Link Adjustable True-Roller Timing Chain Set

from

$62.99


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
  • Not for OEM Hydraulic Roller-Lifter Camshaft Eng.
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Competition Cams – CAMSHAFT, SBC 268 HIGH ENERGY HYDRAULIC 1 EA (Part No.12-210-2)

CAMSHAFT, SBC 268 HIGH ENERGY HYDRAULIC 1 EA

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$537.99
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. Offering

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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Competition Cams – High Energy/Marine 212/212 Hydraulic Flat Cam for Chevrolet Small Block (Part No.12-206-2)

High Energy/Marine 212/212 Hydraulic Flat Cam for Chevrolet Small Block

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$284.99
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.

Product Features:
  • 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.
  • 260/260 Advertised Duration, 212/212 Duration @ .050″, .440″/.440″ Lift, 110 Lobe Separation
  • Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.
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Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

High Performance 180 Degree Thermostat for Increased Flow

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$26.99
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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Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

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$27.49
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:
  • Opens At 195 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
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Mr. Gasket – Intake Manifold Bolts (Part No.6091)

Intake Manifold Bolts

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$32.09
These special Grade 8 intake manifold bolts feature a 12-point smaller-than-standard head and flange, and include special extra thick flat washers for optimum clamping pressures. They’re ideal for use where space is minimal, typical on larger runner race manifolds. These bolts and washers are bright zinc plated for protection and good looks.

Product Features:
  • Features 12-point Smaller-than-standard Bolt Head
  • Thick Flat Washers Distribute Optimum Clamp Load
  • Ideal Use Where Space Is Minimal On Race Manifolds
  • Bolts And Washers Zinc Plated For Protection
  • Zinc Plated For Protection
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Mr. Gasket – Intake Bolt Kit (Part No.5004)

Intake Bolt Kit

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$61.99
Finish your custom engine job with these show quality grade 5 chromed bolts, includes AN washers which have no exposed shoulder for a professional appearance. Includes (12) 3/8-16 x 1-1/4 inch bolts and (12) 3/8 inch AN washers.

Product Features:
  • Chrome plated
  • Grade 5
  • AN washers with no exposed shoulder for a professional appearance
  • Ideal For Street Rods/Machines
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Mr. Gasket – Lts Throttle Cable Brkt Chev (Part No.9885)

Lts Throttle Cable Brkt Chev

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$14.99
The throttle cable bracket is designed for small block Chevy engines thru 1979 and is to be used in conjunction with the kick down cable Pn9886 for the Turbo 350 transmission. The throttle cable bracket mounts on the intake manifold and will hold cables with round or square mounts. It has a 2 inch adjustable range and is finished off in a beautiful chrome plating.

Product Features:
  • 2 in. adjustable range
  • Includes necessary hardware
  • Chrome plated
  • Individually packaged
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Edelbrock – Front Timing Cover Gasket Set #6997 For Small-Block Chevy, With Front Seal (Part No.6997)

Front Timing Cover Gasket Set #6997 For Small-Block Chevy, With Front Seal

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$17.99
Product Features:
  • For Small-Block Chevy
  • One Piece Configuration
  • Includes Front Cover Gasket & Front Seal
  • Includes Necessary Gaskets & Crankshaft Oil Seal
  • For Replacement Or Installation
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Mr. Gasket – Timing Cover Gasket Set (Part No.90)

Timing Cover Gasket Set

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$21.99
Mr. Gasket Performance Timing 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 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.

Product Features:
  • Manufactured from high-density cork/rubber blend gasket material
  • Provides excellent sealing and durability
  • For OE replacement, high performance street, drag race and oval track use
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Edelbrock – Water Pump Big-Block Chevy Short/Standard in Polished Finish (Part No.8860)

Water Pump Big-Block Chevy Short/Standard in Polished Finish

from

$474.99
Maximum cooling for street and racing engines. Internal passages are balanced for maximum flow. Impeller is larger than others for maximum pressure. Impeller vanes dramatically increase flow rates. Equal distribution to both sides of block. Only flows in one direction for optimum efficiency. In the early days of the automotive performance industry, you either ran what was available, or you fabricated something you thought met your needs. Such needs were the building blocks of this industry, and it was through the efforts of many that we have the automotive aftermarket, but it was through the work of one name in particular to which many in the industry owe a great debt, and that name is Edelbrock.

Product Features:
  • Maximum Cooling for Street and Racing Engines
  • Internal Passages Are Balanced for Maximum Flow
  • Impeller is Larger than Others For Max Pressure
  • Impeller Vanes Dramatically Increase Flow Rates
  • Equal Distribution to Both Sides of Block
  • Only Flows in One-Direction for Optimum Efficiency
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Weiand – Action +Plus; Water Pump (Part No.9212P)

Action +Plus; Water Pump

from

$215.99
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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Edelbrock – Water Pump Big-Block Chevy Standard/Long in Polished Finish (Part No.8861)

Water Pump Big-Block Chevy Standard/Long in Polished Finish

from

$475.99
Maximum cooling for street and racing engines. Internal passages are balanced for maximum flow. Impeller is larger than others for maximum pressure. Impeller vanes dramatically increase flow rates. Equal distribution to both sides of block. Only flows in one direction for optimum efficiency. In the early days of the automotive performance industry, you either ran what was available, or you fabricated something you thought met your needs. Such needs were the building blocks of this industry, and it was through the efforts of many that we have the automotive aftermarket, but it was through the work of one name in particular to which many in the industry owe a great debt, and that name is Edelbrock.

Product Features:
  • Maximum Cooling for Street and Racing Engines
  • Internal Passages Are Balanced for Maximum Flow
  • Impeller is Larger than Others For Max Pressure
  • Impeller Vanes Dramatically Increase Flow Rates
  • Equal Distribution to Both Sides of Block
  • Only Flows in One-Direction for Optimum Efficiency
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1974 GMC K25/K2500 Pickup Performance Engines

Maybe you’re in the middle of a full rebuild of that 1974 GMC K25/K2500 Pickup. Maybe you just need a couple of Performance Engines. Either way, Advance Auto Parts has 115 different Performance Engines in our inventory ranging from $7.99 to $1,009.99. That means you can find the exact parts or products you need to keep that 1974 GMC K25/K2500 Pickup running smoothly.

Performance Engines are only as good as their brand. We stock 7 different brands to make sure you have plenty of trusted parts to choose from for your 1974 GMC K25/K2500 Pickup. Mr. Gasket, Edelbrock, and FEL-PRO Performance are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Performance Engines for your 1974 GMC K25/K2500 Pickup, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 856 reviews in this category, some of the top rated parts include Action Plus Water Pumps with 3.7 stars and Performer-Link Adjustable True-Roller Timing Chain Set with 3.3 stars.

So if you’re in the market for aftermarket Performance Engines to keep your 1974 GMC K25/K2500 Pickup rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Performance Engines Brands To Make Your 1974 GMC K25/K2500 Pickup Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1974 GMC K25/K2500 Pickup demands trusted brand parts and products to keep it running. Many trusted brands of Performance Engines make up Advance Auto Parts’ inventory, and all are ready to help make your K25/K2500 Pickup the best it can be. Be sure to browse some of our top Performance Engines brands and parts.

Popular B & M Performance Engines

We carry B & M parts in our stock across Performance Torque Converters categories, plus more. For a 1974 GMC K25/K2500 Pickup, our most popular B & M Performance Engines include:
Tork Master 2400
from $339.99
(1)
Tork Master 2400
Performance Torque Converters

Top 1974 GMC K25/K2500 Pickup Performance Engines from Mr. Gasket

Mr. Gasket products are another trusted brand when it comes to Performance Engines for your 1974 GMC K25/K2500 Pickup. Popular Mr. Gasket parts include:
High Performance 180 Degree Thermostat for Increased Flow
from $26.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats
Ultra-Seal Intake Manifold Gasket with Silicone Beading
from $31.99
(18)
Ultra-Seal Intake Manifold Gasket with Silicone Beading
Performance Engine Intake Manifold Gaskets
Intake Manifold Bolts
from $32.09
(5)
Intake Manifold Bolts
Performance Intake Manifold Hardware

FAQs for 1974 GMC K25/K2500 Pickup Performance Engines

What are the most purchased Performance Engines for the 1974 GMC K25/K2500 Pickup?

Out of 115 Performance Engines for the 1974 GMC K25/K2500 Pickup, the most popular in our inventory are:
Performer EPS Intake Manifold for 1955-86 Small-Block Chevy
from $195.99
(7)
Performer EPS Intake Manifold for 1955-86 Small-Block Chevy
Performance Intake Manifolds
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
from $39.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
Performance Engine Cylinder Head Gaskets
Lower Intake Manifold Gasket Set: 9 Piece Set
from $27.49
This product is not rated
Lower Intake Manifold Gasket Set: 9 Piece Set
Performance Engine Intake Manifold Gaskets

What are the top-rated 1974 GMC K25/K2500 Pickup Performance Engines?

Top-rated Performance Engines for your 1974 GMC K25/K2500 Pickup based on customer reviews/ratings are:
Action Plus Water Pumps
from $215.99
(3)
Action Plus Water Pumps
“I bought this item for my 1979 Camaro SBC for Street/Strip application. Water pump weighs 4 LBS less than factory, comes with its own cork gaskets. N”
Performer-Link Adjustable True-Roller Timing Chain Set
from $62.99
(3)
Performer-Link Adjustable True-Roller Timing Chain Set
“Bolted right on, instructions were spot on. Great purchase. Hard to go wrong with an Edelbrock company product”
Engine Crankshaft Seal Kit
from $21.49
(2)
Engine Crankshaft Seal Kit
“Seals properly”