GMC G25/G2500 Van Performance Engines

Your One-Stop Shop For Trusted GMC G25/G2500 Van Performance Engines

If you’re in search of GMC G25/G2500 Van Performance Engines aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 177 Performance Engines from top brands with prices ranging from $7.99 to $1,645.99.

Beyond great prices, we stock trusted brands manufacturing all types of Performance Engines for your GMC G25/G2500 Van.

And don’t forget to read customer reviews across all Performance Engines categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Performance Engines have to cost top dollar, and we prove it. Browse our top GMC G25/G2500 Van Performance Engines below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential GMC G25/G2500 Van Performance Engines

Mr. Gasket – Water Neck (Part No.9142G)

Water Neck

from

$74.99
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 Style To Prevent Leaks (o-ring included)
  • Swivels for Hard to Fit Applications
  • Comes With Allen Head Bolts
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Mr. Gasket – High Performance Thermostat – 160 Degree Brass & Copper (Part No.4363)

High Performance Thermostat - 160 Degree Brass & Copper

from

$29.49
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 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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Mr. Gasket – Premium Quality Thermostat Gasket with Solid Aluminum Carrier (Part No.738G)

Premium Quality Thermostat Gasket with Solid Aluminum Carrier

from

$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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Edelbrock – Victor Jr. 23 Degree Intake Manifold Small-Block Chevy (Part No.2975)

Victor Jr. 23 Degree Intake Manifold Small-Block Chevy

from

$425.99
Race winning design for all types of competition. Single plane maximizes torque and horsepower. Runners feature extra material for custom porting. For performance in 3500 to 7500 RPM range. Low profile design helps minimal hood clearance. Can use 1 or 2 inch spacers to tune performance. Use PN(2999) where 1 inch spacers are not allowed. Best for standard port heads.

Product Features:
  • Race Winning Design for all Types of Competition
  • Single Plane Maximizes Torque and Horsepower
  • Runners Feature Extra Material for Custom Porting
  • For Performance in 3500 to 7500 RPM Range
  • Low Profile Design Helps Minimal Hood Clearance
  • Can Use 1 Or 2 in. Spacers To Tune Performance
  • Use PN[2999] Where 1 in. Spacers Not Allowed
  • Best for Standard Port Heads
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Competition Cams – Xtreme Energy 230/236 Hydraulic Flat Cam (Part No.12-246-3)

Xtreme Energy 230/236 Hydraulic Flat Cam

from

$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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Edelbrock – RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam (Part No.60759)

RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam

from

$1065.99
Product Features:
  • 50-State Street Legal Aluminum Cylinder Head
  • Out-of-the-Box Bolt-On Performance
  • 70cc Combustion Chambers Improve Performance
  • Retain Stock Compression Ratio
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Edelbrock – Pushrod Set for S/B Chevy (Part No.9630)

Pushrod Set for S/B Chevy

from

$199.99


Product Features:
  • Case-Hardened Tubing
  • Welded Ends
  • 5/16 in. Diameter
  • Use with or without Hardened Steel Guideplates
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Spectre – Bolt Kit Intake Hex Head (Part No.4652)

Bolt Kit Intake Hex Head

from

$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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Mr. Gasket – Cam Change Gaskets (Part No.4406)

Cam Change Gaskets

from

$72.99
If you want to update just your camshaft and aren’t doing a complete engine overhaul, this kit contains all the gaskets needed to change out your camshaft. That way you don’t have to buy a complete gasket kit just to change the cam, but still can replace all the gaskets you should in the process.

Product Features:
  • Contains all the gaskets needed to change out your camshaft
  • Fuel Injector O-Ring Not Included
  • Meets Performance Standards
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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9721)

Performer Series Retainer (Qty 16)

from

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

Ultra Seal: Oil Pan Gasket

from

$41.99
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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Mr. Gasket – Cylinder Head Dowel Pins (Part No.4375)

Cylinder Head Dowel Pins

from

$17.99
Dowel pins are precision machined and case hardened for accurate head alignment. Two per set. 5/16 inch x 5/8 inch

Product Features:
  • Precision Machined
  • Case Hardened
  • Give Accurate Alignment
  • 2 Per Set
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Edelbrock – Intake Manifold Gasket for 1958-1986 Small-Block Chevy (Part No.7201)

Intake Manifold Gasket for 1958-1986 Small-Block Chevy

from

$28.99


Product Features:
  • Clean Positive Seal
  • Embossed Silicone Bead Surrounding The Port
  • Matched To Manifolds And Cylinder Heads
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Mr. Gasket – Cam Bolt Lock Plate Kit (Part No.948G)

Cam Bolt Lock Plate Kit

from

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

Advance And Retard Cam Bushings

from

$48.99
With Mr. Gasket cam degree bushings you fine tune the camshaft timing of your engine to as little as 1 degree. Even aftermarket timing sets with multiple keyways can’t give the range of adjustment these bushings allow. Retard your camshaft to lower the powerband for more low end torque and midrange horsepower, or advance for more top end power. This kit does even number adjustment 0-8 degrees.

Product Features:
  • Advance the cam for increased torque and horsepower
  • Tune your powerband for more end torque or increase top end horsepower
  • Includes (4) offset bushings and (1) 0 degree bushing
  • Cam sprocket dowel pin hole must be drilled to .406¿ (13/32¿) dia.
  • Cam sprocket dowel pin hole must be drilled to .406┐ (13/32┐) dia.
  • Increase Top-End Horsepower
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Competition Cams – MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST (Part No.1412-16)

MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST

from

$217.99
These Magnum Roller Rocker Arms for Chevy V8 265-400 and V6 200-262 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed

Product Features:
  • Roller tip reduces friction while stiff design and superior ratio accuracy yield more effective valve lift
  • For applications with less than 350 lbs. of open spring pressure
  • Constructed from 8620 chromemoly steel, a superior material that will not flex and ensures maximum lift
  • Ultimate street roller rocker arm designed for serious performance enthusiasts
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B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)

Torque Converter, Nitrous Holeshot 3600

from

$749.99
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:
  • 3400-3800 RPM
  • Small And Big Blocks
  • Serious Performance
  • Furnace Brazed
  • Fully Balanced
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Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5894)

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

from

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

Rear Main Seal Gasket

from

$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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Mr. Gasket – Precision Timing Tape (Part No.1591)

Precision Timing Tape

from

$18.99
Precision timing tape can be used on a factory balancer to create HP through accurate timing, and makes setting valve lash simple.

Product Features:
  • 8″ diameter
  • 1970-73, 396-427-454 cu. in.
  • 1967-69, 302 cu. in.
  • 1965-68, 327 cu. in. hi-performance
  • 1970-76, 400 cu. in.
  • 1970-73, 350 cu. in.
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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$44.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
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Mr. Gasket – Complete Engine Bolt Kit (Part No.5001)

Complete Engine Bolt Kit

from

$210.99
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.

Product Features:
  • Chrome plated
  • Grade 5
  • AN washers with no exposed shoulder for a professional appearance
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Mr. Gasket – Engine Dress-Up Kit (Part No.9834BP)

Engine Dress-Up Kit

from

$134.99
Includes: 2 short flat black valve covers 2 valve cover gaskets 1 flat black push-on breather 1 flat black dipstick & tube 1 flat black timing chain cover 1 flat black timing tab 1 rubber grommet for valve cover PCV hole 1 breather grommet

Product Features:
  • Ideal Starter Kit
  • Enhances Appearance
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Edelbrock – Replacement Timing Cover Gasket #4243 For SB Chevy, Fits 2-Piece Part #4242 (Part No.4243)

Replacement Timing Cover Gasket #4243 For SB Chevy, Fits 2-Piece Part #4242

from

$44.99
Product Features:
  • Replacement Gasket Set For PN[4242]
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FEL-PRO Performance – Engine Timing Cover Gasket (Part No.2335)

Engine Timing Cover Gasket

from

$21.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Steel core gasket construction
  • Exclusive design permits significantly faster gasket installation while eliminating potential sealing leak paths.
  • Not intended for use in emission controlled vehicles.
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Performance Engines Brands You Can Trust For Your GMC G25/G2500 Van

7 trusted brands of Performance Engines line our shelves, ready to help keep your GMC G25/G2500 Van running smooth. Below are some of the most popular brands and their top Performance Engines offerings:

Popular FEL-PRO Performance Performance Engines

FEL-PRO Performance products for the GMC G25/G2500 Van span several categories. Some of the highest-rated FEL-PRO Performance Performance Engines that will fit your GMC G25/G2500 Van are:
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $44.99
(1)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
Performance Engine Cylinder Head Gaskets
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
from $42.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
Performance Engine Cylinder Head Gaskets
PERFORMANCE VALVE COVER GASKET SET
from $23.99
(1)
PERFORMANCE VALVE COVER GASKET SET
Performance Engine Valve Cover Gasket Sets

Top GMC G25/G2500 Van Performance Engines from Mr. Gasket

Your GMC G25/G2500 Van will be purring again thanks to Mr. Gasket brand Performance Engines available for online order or in-store pick up. Popular Mr. Gasket parts include:
High Performance 180 Degree Thermostat for Increased Flow
from $29.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats
High Performance Thermostat - 160 Degree Brass & Copper
from $29.49
(12)
High Performance Thermostat – 160 Degree Brass & Copper
Performance Engine Coolant Thermostats
Ultra Seal: Harmonic Balancer Bolt/Washer Kit
from $15.99
(12)
Ultra Seal: Harmonic Balancer Bolt/Washer Kit
Performance Engine Harmonic Balancers

Most Purchased GMC G25/G2500 Van Performance Engines from Edelbrock

When you buy the most frequently purchased Edelbrock brand Performance Engines, you can be confident it will be the right part for your GMC G25/G2500 Van. Here are the Edelbrock Performance Engines Advanced Auto customers buy the most:
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
High Performance 180 Degree Thermostat for Increased Flow
from $29.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
from $42.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
Performance Engine Cylinder Head Gaskets

FAQs for GMC G25/G2500 Van Performance Engines

What are the most purchased Performance Engines for the GMC G25/G2500 Van?

Out of 177 Performance Engines for the GMC G25/G2500 Van, 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
Intake Manifold Gasket for 1958-1986 Small-Block Chevy
from $28.99
(12)
Intake Manifold Gasket for 1958-1986 Small-Block Chevy
Performance Engine Intake Manifold Gaskets

What are the top-rated GMC G25/G2500 Van Performance Engines?

Top-rated Performance Engines for your GMC G25/G2500 Van based on customer reviews/ratings are:
Big Mutha' Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
from $914.99
(13)
Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
“Worked prefect. Gave me the Hi speed blower back”
Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet
from $302.99
(4)
Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet
“I love this cam it gives me the power I need at the low end to pull havey loads where I need it the most for the work I do with my truck This cam and ”