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COMP Cams 146-480-11 LSR Remote Turbo Hydraulic Roller Camshaft - 227/223

(Chevrolet Suburban 1500 2010-13, Camaro 2010-16, Corvette 2008-13, Colorado 2009, Silverado 2500 2006-09, 2011-14 + 9 more models)

Manufacturer

Part Number

146-480-11
Sale Price

$488.95

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams 146-480-11 is a high-performance hydraulic roller camshaft designed specifically for GM LS Gen IV engines without Variable Valve Timing (VVT) or Active Fuel Management (AFM). This LSR Turbo Remote Mount camshaft is engineered to deliver exceptional responsiveness and power when paired with remote-mount turbocharger systems, making it ideal for street/performance applications.

Key Specifications:

  • Grind Number: 277LTB HR15
  • Intake Duration @ .050": 227 degrees
  • Exhaust Duration @ .050": 223 degrees
  • Advertised Intake Duration: 277 degrees
  • Advertised Exhaust Duration: 273 degrees
  • Intake Valve Lift: 0.614"
  • Exhaust Valve Lift: 0.610"
  • Lobe Separation: 115 degrees
  • Operating RPM Range: 2,200 - 7,000 RPM

Features and Benefits:

  • Precision-ground from billet steel for maximum strength and durability
  • Single-bolt cam gear attachment designed for LSA/LS3 engines to avoid timing set and reluctor complications
  • Features COMP Cams' advanced Micro Surface Enhancement (MSE) technology for improved load-bearing capacity and reduced wear
  • Higher exhaust duration and optimized lift profile maximize turbocharger efficiency while ensuring broad power band
  • Designed for 2007-2015 GM LS2/LS3 Gen IV engines without VVT or AFM systems

Important Notes:

  • Requires aftermarket high-pressure valve springs (COMP Cams 26926-16 recommended)
  • Custom engine tuning required for proper operation
  • Lifters and assembly lubricant not included
  • Designed for hydraulic roller lifters

This camshaft delivers the perfect balance of street manners and turbocharged performance, providing excellent spool characteristics and impressive power gains throughout the RPM range. The LSR Turbo series represents COMP Cams' commitment to maximizing the potential of modern LS engines in forced induction applications.

Products specifications

Fits

Chevrolet Suburban 1500 2010-13, Camaro 2010-16, Corvette 2008-13, Colorado 2009, Silverado 2500 2006-09, 2011-14, Silverado 3500 2008-13, 2015-16, SS 2014-17, Express Cargo 2010-16, Express Pasajeros 2010-16; Cadillac CTS 2009-15 + 4 more models

Basic Operating RPM Range

2,200-7,000

Exhaust Valve Lift

0.61

Intake Valve Lift

0.614

Grind Number

277LTB HR15

Engine Family

GM LS2/LS3 GEN IV Single-Bolt w/o VVT and AFM 8 Cylinder (2007-2015)

Camshaft Series

LSR Turbo Remote Mount

AMAZON ASIN

B0046ZJ9B6

Usage

Street/Performance

Assembly Lubricant Included

No

Camshaft Gear Attachment

1-Bolt

Lifters Included

No

Valve Springs Required

Yes

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

LOBE SEPARATION

115

Lifter Type

Hydraulic Roller

Intake Duration at .050 Inch Lift

227

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Advertised Exhaust Duration

273

Exhaust Duration at .050 inch Lift

223

Advertised Intake Duration

277

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Easy to order

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