SKU: 46946500682

Comp Cams Camshaft Kit, LS1 XR281HR-12

$586.49 $651.66
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Description

Comp Cams Camshaft Kit, LS1 XR281HR-12Specifications Advertised Duration: 281 int. 283 exh. Advertised Exhaust Duration: 283 Advertised Intake Duration: 281 Assembly Lubricant Included: Yes Basic Operating RPM Range: 2,200 7,200 Cam Style: Hydraulic roller tappet Camshaft Gear Attachment: 3 bolt Camshaft Manufacturers Description: High RPM street strip camshaft for use with FAST LSX intake. Requires programmer. Computer Controlled Compatible: Yes Duration at 050 inch Lift: 228 int. 230

Specifications

Advertised Duration: 281 int./283 exh.
Advertised Exhaust Duration: 283
Advertised Intake Duration: 281
Assembly Lubricant Included: Yes
Basic Operating RPM Range: 2,200-7,200
Cam Style: Hydraulic roller tappet
Camshaft Gear Attachment: 3-bolt
Camshaft Manufacturers Description: High RPM street/strip camshaft for use with FAST LSX intake. Requires programmer.
Computer-Controlled Compatible: Yes
Duration at 050 inch Lift: 228 int./230 exh.
Exhaust Duration at 050 inch Lift: 230
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.573 in.
Gaskets Included: No
Grind Number: XR281HR
Intake Duration at 050 inch Lift: 228
Intake Valve Lift with Factory Rocker Arm Ratio: 0.571 in.
Lifter Style: Hydraulic roller
Lifters Included: Yes
Lobe Separation (degrees): 112
Locks Included: Yes
Outside Diameter of Outer Spring (in): 1.055 in.
Pushrods Included: No
Quantity: Sold as a kit.
Retainers Included: Yes
Rocker Arms Included: No
Timing Chain and Gears Included: No
Valve Lift with Factory Rocker Arm Ratio: 0.571 int./0.573 exh.
Valve Springs Included: Yes
Valve Springs Required: Yes
Valve Stem Seals Included: Yes
Title: K54-428-11 CamShaft Kit, LS1 XR281HR-12
Engine Make/Size: Chevy Small Block (262-400)
RPM Range: 2200-7000
Usage: Street/Performance
Exh. Duration @ .050 in. (Deg): 230
Exh. Duration Advertised (Deg): 283
Exhaust Valve Lift (in.): 0.573
Int. Duration @ .050 in. (Deg): 228
Int. Duration Advertised (Deg): 281
Intake Valve Lift (in.): 0.571
Lifter Type: Hydraulic Roller


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1999 - 2013 GMC Sierra 1500 SL, SLE, SLT
2002 - 2013 GMC Sierra 1500 WT, Denali
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2008 - 2009 Pontiac G8 Base, GT
2009 Pontiac G8 GXP
2005 - 2007 Pontiac Grand Prix GT
2005 Pontiac Grand Prix GTP
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2004 - 2006 Pontiac GTO Base
2006 - 2009 Saab 9-7x 5.3i, 4.2i
2008 - 2009 Saab 9-7x Aero
2005 Saab 9-7x Linear, Arc
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 46946500682

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4.2 ★★★★★
Based on 18 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 1
Sizing way off
Size: One Size, Color: (100) White / White / Halo Gray
These were my favorite socks, at least the old style was. They redid them and I was okay with it. However, I don't understand how they are a one size fits most. I tried them on and they were still too big at the top. There was so much extra fabric at the toes. For reference, I wear a size 8.5 women's shoe, typically. The packaging says fits most from size 5.5 to 12. I don't understand how it fits that wide range of shoe size. Definitely returning these and I will be buying something else.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2024
L
Verified Purchase
Liliana C Viloria V
Belleville, US
★★★★★ 5
Genial
Size: One Size, Color: (015) Tetra Gray / Gray Matter / White Quartz
Me encanta la textura y sobre todo que tiene para que siempre sepas en cuál pies va!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025
M
Verified Purchase
m
Natrona Heights, US
★★★★★ 5
Comfortable
Size: One Size, Color: (348) Silica Green / White / Titan Gray
Comfortable and stays in place
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2025
S
Verified Purchase
Sukoshi
West Palm Beach, US
★★★★★ 5
Best socks for work or working out.
Size: One Size, Color: (015) Tetra Gray / Gray Matter / White Quartz
Great socks. They stay on your heel! Love the material; breathable and not thick. Love the neutral tone colors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2025
C
Verified Purchase
Cassandra Moxlow
West Palm Beach, US
★★★★★ 3
Didn’t meet full expectations
Size: One Size, Color: (001) Black / Black / Jet Gray
Much shorter than anticipated.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025

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