2003 Chevrolet Corvette Performance Engines

Keep Your 2003 Chevrolet Corvette 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 2003 Chevrolet Corvette looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Water Pumps, Performance Engine Coolant Thermostats, and Performance Engine Camshafts. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like Competition Cams. For example, Competition Cams Performance Engines start at just $528.99 with an average 4.1 star rating. With over 18 reviews and a solid 3 star average, you can shop with confidence knowing other Chevrolet Corvette owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Chevrolet Corvette Performance Engine at Advance Auto Parts is around $418.29, with a range that starts at $10.99 and goes up to $1,870.00. With 60 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Ls1 Late Thermostat, 7 Degree Steel Retainer Set of 16 for GM GEN III w/ 26915/26918 Beehive Springs, and GM LS Beehive Valve Spring Kit w/ Chromemoly Steel Retainers; .600" Max Lift start at just $36.99 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 Oil Filters and Programmers. At Advance Auto Parts, we’re here to help you keep your 2003 Chevrolet Corvette in peak condition, inside and out.

Essential 2003 Chevrolet Corvette Performance Engines

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

Performer-Link Adjustable True-Roller Timing Chain Set

from

$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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Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7809)

Performer-Link Adjustable True-Roller Timing Chain Set

from

$64.99


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
  • 50 State Street Legal
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Competition Cams – 7 Degree Steel Retainer Set of 16 for GM GEN III w/ 26915/26918 Beehive Springs (Part No.774-16)

7 Degree Steel Retainer Set of 16 for GM GEN III w/ 26915/26918 Beehive Springs

from

$85.99
This 7° steel retainer for GM Gen III applications with #26915 or #26918 Beehive Valve Springs is precision machined from 4140 chromemoly steel and finished in black oxide. This precision retainer is specifically designed for positive location when combined with COMP Cams high-quality valve springs.

Product Features:
  • 7° angle retainers for 1.055″ diameter valve springs, stock diameter valve stems
  • O.D. – 1.030″, Step 1 – .640″
  • Precision machined from 4140 chromemoly steel and finished in black oxide
  • Designed for positive location when combined with COMP Cams high-quality valve springs
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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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Competition Cams – Pushrod, Spring and Retainer Kit for GM LS (Part No.54100)

Pushrod, Spring and Retainer Kit for GM LS

from

$719.99
COMP Cams GM LS Series RPM Valve Train Upgrade Kits replace stock valve train components for more usable horsepower and a higher rpm operating range. This kit includes Hi-Tech Pushrods, Beehive Valve Springs and Titanium Retainers.

Product Features:
  • For GM LS series applications
  • includes Hi-Tech Pushrods, Beehive Valve Springs and Titanium Retainers
  • Replaces stock valve train components for more usable horsepower and higher rpm range
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Competition Cams – Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6 (Part No.875-1)

Reduced Travel OE-Style Hydraulic Roller Lifter for '87+ SBC, LT/LS and V6

from

$39.99
Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6

Competition Cams – Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-234-2)

Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit

from

$305.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy: Strong torque thru low end and mid-range, good idle.

Product Features:
  • Cam and lifter kit for Small Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Xtreme Energy: Strong torque thru low end and mid-range, good idle.
  • 256/268 Advertised Duration, 212/218 Duration @ .050″, .447″/.454″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – Thumpr 243/257 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454 (Part No.CL11-602-4)

Thumpr 243/257 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454

from

$937.99
BIG BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

Product Features:
  • Cam and lifter kit for Big Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
  • 295/312 Advertised Duration, 243/257 Duration @ .050″, .522″/.507″ Lift, 107 Lobe Separation
  • Valve spring upgrade required
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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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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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Competition Cams – Magnum 7.800" Long, .080" Wall, 3/8" Diameter Pushrod Set (Part No.7513-16)

Magnum 7.800" Long, .080" Wall, 3/8" Diameter Pushrod Set

from

$165.99
Magnum Pushrods from COMP Cams offer an affordable solution for your .080″ wall chromemoly pushrod needs. Designed to withstand the stresses of a high performance engine, Magnum Pushrods are head-treated for extended durability and have precision formed, reinforced ends. Magnum Pushrods are black-oxide finished with their part number and length laser etched onto the surface for easy identification.

Product Features:
  • 3/8″ Diameter, 7.800″ Length
  • Magnum Pushrods for Small Block Chevy
  • One-piece .080″ wall chromemoly steel tubing
  • Heat-treated for extended durability and guide plate compatibility
  • Precision formed and reinforced pushrod end
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B & M – Holeshot 3000 (Part No.20413)

Holeshot 3000

from

$899.99
HoleShot 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot c

Product Features:
  • Furnace Brazed Impeller
  • Steel Alloy Pump Drive Tube
  • Heavy Duty Needle Bearing
  • Between Stator and Turbine
  • Furnace Brazed Turbine
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B & M – Torque Converter, Nitrous Holeshot 3000 (Part No.20481)

Torque Converter, Nitrous Holeshot 3000

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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Competition Cams – XFI XE-R 238/240 Hydraulic Roller Cam (Part No.54-448-11)

XFI XE-R 238/240 Hydraulic Roller Cam

from

$541.99
Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power.

Product Features:
  • Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
  • Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
  • Provides outstanding low RPM torque with increased stability.
See More

Competition Cams – XFI RPM 216/220 Hydraulic Roller Cam (Part No.54-414-11)

XFI RPM 216/220 Hydraulic Roller Cam

from

$541.99
HYDRAULIC ROLLER – XFI RPM: Great mid-range with superior top end power. Requires tuning.

Product Features:
  • HYDRAULIC ROLLER – XFI RPM: Great mid-range with superior top end power. Requires tuning.
  • 269/273 Advertised Duration, 216/220 Duration @ .050″, .525″/.532″ Lift, 114 Lobe Separation
  • Use Beehive Valve Spring part No. 26915-16 with this camshaft
See More

Competition Cams – Magnum 253/253 Hydraulic Flat Cam (Part No.11-214-4)

Magnum 253/253 Hydraulic Flat Cam

from

$291.99
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.

Product Features:
  • Best with aftermarket torque converters and 9.5:1 compression.
  • Great high RPM power.
  • Easy on valve train parts.
  • Can be used with mild ratio rocker arms and traditional performance valve springs.
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Competition Cams – Ultra-Gold ARC Rocker Set w/ 1.6 Ratio for Chevrolet Small Block w/ 3/8" Stud (Part No.19002-16)

Ultra-Gold ARC Rocker Set w/ 1.6 Ratio for Chevrolet Small Block w/ 3/8" Stud

from

$433.99
These COMP Cams Ultra-Gold Aluminum Roller Rocker Arms with a 3/8″ stud diameter and 1.6 ratio are designed for Chevrolet V8 265-400 applications. The new modern design features of these Ultra-Gold Rockers are proven to withstand extremely aggressive spring pressure and valve lift. Designed specifically for high performance street and race engines, the Ultra-Gold Aluminum Rocker Arms are precision CNC-machined to strict tolerances. Developed to meet the demands of professional engine builders, these rockers include features never before possible in an aluminum rocker arm.

Product Features:
  • CNC-machined, lightweight design removes weight and yields unrivaled quality and ratio accuracy
  • Designed for high performance street and race engines
  • Precision-sorted trunion bearings withstand elevated valve spring pressure and valve lift
  • Additional clearance, up to 1.650″ O.D. valve spring
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Mr. Gasket – Ultra Seal: Screw-In Rocker Arm Studs (Part No.1076)

Ultra Seal: Screw-In Rocker Arm Studs

from

$75.99
Mr. Gasket screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street applications. OE style press in rocker studs can actually pull out of the cylinder head when using high lift camshafts. Includes sixteen studs 3/8-24 x 1.47 inch long top x 7/16-14 bottom.

Product Features:
  • Black Oxide Coated Grade 8 Steel
  • Kit Contains 16 Studs
  • Easy To Install
  • Heat Treated Steel
  • Grade 8 Steel
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Competition Cams – Ultra Pro Magnum XD Rockers with 1.7 Ratio for Chevrolet Big Block with 7/16" Stud (Part No.1820-16)

Ultra Pro Magnum XD Rockers with 1.7 Ratio for Chevrolet Big Block with 7/16" Stud

from

$584.99
Ultra Pro Magnum XD Rockers with 1.7 Ratio for Chevrolet Big Block with 7/16" Stud

Competition Cams – GM LS Beehive Valve Spring Kit w/ Chromemoly Steel Retainers; .600" Max Lift (Part No.26915CS-KIT)

GM LS Beehive Valve Spring Kit w/ Chromemoly Steel Retainers; .600" Max Lift

from

$500.99
VALVE SPRING KIT, FOR LS 1.310″ BEEHIVE 1 KT
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Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5794)

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

from

$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 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
  • Non-Rotator Style: Dyno Tested and Street Proven
  • Great Match to Edelbrock Camshaft Kit
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Edelbrock – Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads (Part No.5703)

Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads

from

$69.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • For Use With Cast Iron Heads
  • Springs Made of Highest Quality Spring Wire
  • Springs Precision Wound To Close Tolerances
  • Use with Original Equipment Heads Only
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Mr. Gasket – Bolt Water Pump (Part No.4998)

Bolt Water Pump

from

$37.99
This Mr. Gasket Water Pump Bolt Set includes chrome plated grade 5 hex head fasteners to install the water pump on your small or big block Chevrolet with the long style water pump. Includes four 3/8 inch-16 x 2 inch bolts with four 3/8 inch AN washers. 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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Edelbrock – Replacement Water Pump Cartridge for 1997-04 GM LS1/LS6 Gen III (Part No.8897)

Replacement Water Pump Cartridge for 1997-04 GM LS1/LS6 Gen III

from

$244.99
Edelbrock #8897 Water Pump gm gen III ls1 & gen iv ls, replacement insert ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “super

Product Features:
  • Standard Impeller Rotation
  • Replacement Insert
  • Service Part
  • For Part Number 8896
  • Satin Finish
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Edelbrock – Water Pump for Small-Block Chevy in Polished Finish (Short) (Part No.8820)

Water Pump for Small-Block Chevy in Polished Finish (Short)

from

$484.99
Edelbrock #8820 Water Pump short style 1955-68 SBC engine polished ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “super coolin
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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

from

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

High Performance Thermostat

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.

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 – Ls1 Late Thermostat (Part No.6367)

Ls1 Late Thermostat

from

$36.99
Designed to open at 160 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.

Product Features:
  • Opens sooner than stock at 160 degrees
  • High flow design for performance applications
  • Includes rubber o-ring seal/gasket
  • Incorporates pressure relief valve
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Most Popular Performance Engine Water Pumps for 2003 Chevrolet Corvettes

Enhance your 2003 Chevrolet Corvette with one of the 2 Performance Engine Water Pumps we have in stock, starting at just $244.99.

Edelbrock – Water Pump for GM LS Victor Pro (Clockwise Rotation) (Part No.8895)

Water Pump for GM LS Victor Pro (Clockwise Rotation)

from

$551.99
Edelbrock #8895 Water Pump GM gen III ls1 & gen iv ls engines insert style ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “supe

Product Features:
  • Standard Impeller Rotation
  • 0.750 in. Pilot Shaft
  • 0.750 in. Ball/Ball Bearing
  • 6.00 in. Block To Hub Height
  • Natural Finish
See More

Edelbrock – Replacement Water Pump Cartridge for 1997-04 GM LS1/LS6 Gen III (Part No.8897)

Replacement Water Pump Cartridge for 1997-04 GM LS1/LS6 Gen III

from

$244.99
Edelbrock #8897 Water Pump gm gen III ls1 & gen iv ls, replacement insert ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “super

Product Features:
  • Standard Impeller Rotation
  • Replacement Insert
  • Service Part
  • For Part Number 8896
  • Satin Finish
See More

Best-Selling 2003 Chevrolet Corvette Performance Engine Coolant Thermostat

Upgrade your Corvette with our best-selling Performance Engine Coolant Thermostat.

Mr. Gasket – Ls1 Late Thermostat (Part No.6367)

Ls1 Late Thermostat

from

$36.99
Designed to open at 160 degrees every time, regardless of engine rpm, and it’s high-flow design and brass and copper construction eliminate the damaging effects of cycling when you’re stuck in stop-and-go traffic. It includes the rubber gasket and has a pressure relief valve.

Product Features:
  • Opens sooner than stock at 160 degrees
  • High flow design for performance applications
  • Includes rubber o-ring seal/gasket
  • Incorporates pressure relief valve
See More

Top-Quality Performance Engine Camshafts for 2003 Chevrolet Corvettes

Choose a high-quality OEM or aftermarket Performance Engine Camshaft for Chevrolet Corvettes and enjoy top-notch performance from $541.99.

Competition Cams – XFI XE-R 224/230 Hydraulic Roller Cam (Part No.54-444-11)

XFI XE-R 224/230 Hydraulic Roller Cam

from

$541.99
HYDRAULIC ROLLER – XFI XE-R: High rpm street/strip with XE-R lobe designs. Requires custom tuning.

Product Features:
  • HYDRAULIC ROLLER – XFI XE-R: High rpm street/strip with XE-R lobe designs. Requires custom tuning.
  • 273/279 Advertised Duration, 224/230 Duration @ .050″, .581″/.588″ Lift, 114 Lobe Separation
  • Use Beehive Valve Spring part No. 26918-16 with this camshaft
See More

Competition Cams – Mutha’ Thumpr 227/241 Hydraulic Roller Cam for GM LS GEN III/IV (Part No.54-601-11)

Mutha' Thumpr 227/241 Hydraulic Roller Cam for GM LS GEN III/IV

from

$805.99
Mutha’ Thumpr 227/241 Hydraulic Roller Cam for GM LS GEN III/IV

Competition Cams – Big Mutha’ Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV (Part No.54-602-11)

Big Mutha' Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV

from

$805.99
Big Mutha’ Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV

Competition Cams – Thumpr 219/233 Hydraulic Roller Cam for GM LS GEN III/IV (Part No.54-600-11)

Thumpr 219/233 Hydraulic Roller Cam for GM LS GEN III/IV

from

$805.99
Thumpr 219/233 Hydraulic Roller Cam for GM LS GEN III/IV

Competition Cams – LSR 219/235 HRLRLS (Part No.146-456-11)

LSR 219/235 HRLRLS

from

$601.99
LSR 219/235 HRLRLS

Competition Cams – XFI 222/234 HRLRILS (Part No.146-426-11)

XFI 222/234 HRLRILS

from

$601.99
XFI 222/234 HRLRILS

Competition Cams – LSR 227/243 HRLRLS (Part No.146-458-11)

LSR 227/243 HRLRLS

from

$601.99
LSR 227/243 HRLRLS

Competition Cams – CAMSHAFT, GM LS 275 XFI RPM HI LIFT HYD ROLLER 1 EA (Part No.54-426-11)

CAMSHAFT, GM LS 275 XFI RPM HI LIFT HYD ROLLER 1 EA

from

$541.99
Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power. Without sacrificing low RPM torque, these camshafts extend the RPM potential of GM LS e

Product Features:
  • Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
  • Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
  • Provides outstanding low RPM torque with increased stability.
See More

Competition Cams – XFI XE-R 238/240 Hydraulic Roller Cam (Part No.54-448-11)

XFI XE-R 238/240 Hydraulic Roller Cam

from

$541.99
Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power.

Product Features:
  • Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
  • Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
  • Provides outstanding low RPM torque with increased stability.
See More

Competition Cams – XFI RPM 212/218 Hydraulic Roller Cam (Part No.54-412-11)

XFI RPM 212/218 Hydraulic Roller Cam

from

$541.99
Designed to take advantage of the GM LS engine’s larger camshaft journal diameter, the XFI RPM camshaft line takes Xtreme Energy technology to deliver excellent power.

Product Features:
  • Designed with Xtreme Energy technology to provide excellent power with the LS engine’s enhanced cylinder head design and high RPM potential.
  • Takes advantage of the LS engine’s larger journal diameter, base circle and 1.7+ rocker arm ratio.
  • Provides outstanding low RPM torque with increased stability.
See More

Competition Cams – XFI RPM 216/220 Hydraulic Roller Cam (Part No.54-414-11)

XFI RPM 216/220 Hydraulic Roller Cam

from

$541.99
HYDRAULIC ROLLER – XFI RPM: Great mid-range with superior top end power. Requires tuning.

Product Features:
  • HYDRAULIC ROLLER – XFI RPM: Great mid-range with superior top end power. Requires tuning.
  • 269/273 Advertised Duration, 216/220 Duration @ .050″, .525″/.532″ Lift, 114 Lobe Separation
  • Use Beehive Valve Spring part No. 26915-16 with this camshaft
See More

Top Picks for 2003 Chevrolet Corvette Performance Engine Rocker Arms

Invest in one of our 5 durable Performance Engine Rocker Arms for your 2003 Chevrolet, knowing you’re getting trusted brands and expert craftsmanship.

Competition Cams – ENGINE ROCKER ARM (Part No.19025-16)

ENGINE ROCKER ARM

from

$764.99
ENGINE ROCKER ARM

Competition Cams – ENGINE ROCKER ARM (Part No.19024-16)

ENGINE ROCKER ARM

from

$764.99
ENGINE ROCKER ARM

Competition Cams – ENGINE ROCKER ARM (Part No.1675-16)

ENGINE ROCKER ARM

from

$661.99
ENGINE ROCKER ARM

Competition Cams – ROCKER ARMS,GM LS1 1 (Part No.1675-8)

ROCKER ARMS,GM LS1 1

from

$355.99
ROCKER ARMS,GM LS1 1

Competition Cams – ENGINE ROCKER ARM (Part No.1675-1)

ENGINE ROCKER ARM

from

$62.99
ENGINE ROCKER ARM

Our Performance Engine Timing Sets and Components for 2003 Chevrolet Corvettes

Make a smart move for your 2003 Chevrolet Corvette with our Performance Engine Timing Sets and Component for $203.99.

Edelbrock – RPM-Link Adjustable True-Roller Timing Chain Set (Part No.7343)

RPM-Link Adjustable True-Roller Timing Chain Set

from

$203.99
Edelbrock part #7343 RPM-Link adjustable true-roller timing chain Set now, you can dial-in your camshaft with ease with our RPM-Link Roller Timing Chain Set. RPM-Link timing chain bolt onto your engine just like any other timing chain set, so there’s no m

Product Features:
  • Keyway Adjustable
  • Single Roller Timing Chain Type
  • Induction Hardened Billet Steel Material
  • No Machining Required
  • No Special Offset Bushings Needed For Installation
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Top-Rated Performance Engine Brands For Your 2003 Chevrolet Corvette

When it comes to finding the perfect Performance Engine for your 2003 Chevrolet Corvette, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Performance Engine brands including Competition Cams, and more, all known for their exceptional customer ratings (average brand rating of 4.1 stars) and competitive prices, as low as $528.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 2003 Chevrolet Corvette, providing peace of mind with parts that meet or exceed OEM standards.

Popular Competition Cams 2003 Chevrolet Corvette Performance Engines

If you’re looking for a top-quality Performance Engine for your 2003 Chevrolet Corvette, Advance Auto Parts has exactly what you need with our selection of Competition Cams Performance Engines. We have 1 Competition Cams Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $528.99, you’ll find the perfect Performance Engine for your needs and budget. Competition Cams Performance Engines for the 2003 Chevrolet Corvette come highly rated, with over 15 customer reviews and an impressive average rating of 4.1 stars. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
VALVE SPRING KIT, FOR LS 1.310" BEEHIVE 1 KT
from $528.99
(15)
VALVE SPRING KIT, FOR LS 1.310" BEEHIVE 1 KT
“Part worked great. Very convenient.”

FAQs for 2003 Chevrolet Corvette Performance Engines

What are the best-selling Performance Engines for 2003 Chevrolet Corvettes?

Out of 60 Performance Engines that fit 2003 Chevrolet Corvettes, the following parts are the top sellers:

What’s the price range for 2003 Chevrolet Corvette Performance Engines?

The prices of Performance Engines for the 2003 Chevrolet Corvette range from $10.99 up to $1,870.00 for the most premium parts.

What is the average price of a Performance Engine for a 2003 Chevrolet Corvette?

The average price for Performance Engines for the 2003 Chevrolet Corvette is $418.29. 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 Chevrolet Corvette model years?

Yes, we carry Performance Engines for 57 model years of Chevrolet Corvettes between 1953 and 2013. The following model years are the most popular for Performance Engine purchases: 2009, 2008, 2007, 2006, 2005, 2004, 2002, 2001, and 2000.

What are the cheapest Performance Engines for my 2003 Chevrolet Corvette?

Does Advance Auto Parts sell Performance Engines for any other 2003 Chevrolet models?

What types of Performance Engines do you sell for my 2003 Chevrolet Corvette?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 2003 Chevrolet Corvette:

Can I get help with 2003 Chevrolet Corvette Performance Engine orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Performance Engines and more.

What is your return policy for Chevrolet Corvette Performance Engines?

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