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COMP Cams 54-448-11 XFI XE-R Hydraulic Roller Camshaft GM LS Gen III/IV - 238/240

(Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Camaro 1998-2002, 2010-16, Corvette 1997-2013, Silverado 2500 HD 2010-19 + 58 more models)

Part of: COMP Cams XFI XE-R Hydraulic Roller Camshaft GM LS Gen III/IV

Other options in this family: COMP Cams 54-446-11

Manufacturer

Picture for manufacturer COMP Cams

Part Number

54-448-11
8 reviews
Sale Price

$404.95

In Stock (7)

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Usually delivered within 2 days

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Product Details

The COMP Cams XFI XE-R 54-448-11 hydraulic roller camshaft is engineered specifically for GM LS Gen III and Gen IV engines, delivering a high-performance upgrade with excellent street manners and strong top-end power. This camshaft features a 238/240 duration split designed to optimize airflow and power delivery across a broad RPM range.

Camshaft Specifications:

  • Advertised Duration: 283°/289° intake/exhaust
  • Duration @ .050": 238°/240° intake/exhaust
  • Valve Lift: .600"/.600" with 1.7 rocker ratio
  • LSA (Lobe Separation Angle): 116°
  • RPM Range: 2,200-6,200

Key Features:

  • XFI (Xtreme Fuel Injection) profile optimized for modern fuel injection systems
  • XE-R (Xtreme Energy Retrofit) lobe design for hydraulic roller applications
  • Compatible with stock torque converters and rear gears
  • Excellent vacuum characteristics maintain power accessories and fuel economy
  • Computer-controlled lobe grinding ensures precision and consistency
  • Direct replacement for GM LS1, LS2, LS3, LS6, LQ4, LQ9, and other Gen III/IV engines

This camshaft delivers a noticeable power increase with a smooth idle quality, making it ideal for street performance applications where drivability is important. Installation requires valve spring upgrade to accommodate higher lift and verify piston-to-valve clearance.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Camaro 1998-2002, 2010-16, Corvette 1997-2013, Silverado 2500 HD 2010-19, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-08, Caprice 2011-17 + 53 more models

Basic Operating RPM Range

2,800-7,200

Engine Family

GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)

Intake Valve Lift

0.605

Exhaust Valve Lift

0.609

Cam and Lifter Kit Upgrade

CL54-448-11

MSE Process Video Link

https://www.youtube.com/watch?v=hTyIQxrPCCI

K-Kit Upgrade

K54-448-11

Grind Number

XER287HR

Camshaft Series

XFI XE-R

AMAZON ASIN

B000V9CV7K

Assembly Lubricant Included

No

Lifters Included

No

LOBE SEPARATION

112

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.

Camshaft Gear Attachment

3-Bolt

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

240

Intake Duration at .050 Inch Lift

238

Cam Type

Hydraulic Roller

Camshaft Material

Billet Steel

Advertised Exhaust Duration

289

Advertised Intake Duration

287

The order was shipped promptly, and everyone was is good working condition. I will order from here again!!

Awesome!

I ordered from Autoplicity because they had the lowest price for an exhaust i was looking for. I was kind of iffy at first but then i read all the great reviews. Very fast shipping and delivery! I will be coming back for my next auto needs. Thank you autoplicity for your great prices and customer service!

I am pleased with Autoplicity. There was a miscommunication on shipment, but after a phone call, everything was handled. Looking forward to my parts coming in. Thanks guys!

Great company to order from! Low prices, wide variety of merchandise, and quick shipping!

I purchased an Optima Red Top 75 battery from Autoplicity and they have some of the best prices available. The item was shipped right away and they knew the inventory that was available, not like others who said there may be a 2 to 3 week shipping time frame. So far the service has been great and I look forward to continued great service.

i received item very prompt and for a great price!

Fast and inexpensive. Thanks.

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