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COMP Cams Comp Cams Xtreme Energy Hydraulic Roller Camshafts

249-08-500-8


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COMP Cams 08-500-8
$304.95
Xtreme Energy XR258HR-12 Computer Controlled Hydraulic Roller Camshaft
Lift: .480''/.488''
Duration: 258°/264°
Lobe Separation Angle: 112°
RPM Range: 1000-5000
Free Shipping - Estimated to ship directly from the manufacturer on 05/19/21

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1993 GMC K2500

  • Liter: 5.7
  • SubModel: SIERRA
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K

1991 CHEVROLET K3500

  • Liter: 5.7
  • SubModel: SILVERADO
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K

1992 GMC YUKON

  • Liter: 5.7
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K

1988 GMC C2500

  • Liter: 5
  • SubModel: SIERRA SLE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 305
  • Engine Type: V8 ( 5L / 305 )
  • Engine Vin: H

1988 CHEVROLET V30

  • Liter: 5.7
  • SubModel: SCOTTSDALE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: M

1987 GMC V3500

  • Liter: 5.7
  • SubModel: SIERRA CLASSIC
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: M

1991 CHEVROLET C3500

  • Liter: 5.7
  • SubModel: SILVERADO
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K

1992 GMC K2500

  • Liter: 5.7
  • SubModel: SIERRA SLX
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K

1992 CHEVROLET C2500

  • Liter: 5
  • SubModel: CHEYENNE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 305
  • Engine Type: V8 ( 5L / 305 )
  • Engine Vin: H

1994 CHEVROLET C2500

  • Liter: 5.7
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K

1988 CHEVROLET MONTE CARLO

  • Liter: 5
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 305
  • Engine Type: V8 ( 5L / 305 )
  • Engine Vin: H

1988 CHEVROLET K1500

  • Liter: 5.7
  • SubModel: SILVERADO
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 350
  • Engine Type: V8 ( 5.7L / 350 )
  • Engine Vin: K

will I need to machine the vortec heads on my blue print L31 crate motor,when running this cam? How much more TQ. & HP should I expect?

Asked by: babyboo
You should not need to machine the heads, but you will want to check the valve spring coil bind. The TQ and HP will vary widely based on the rest of your engine setup.
Answered by: Rusty B
Date published: 2018-08-29

Is this compatible with the stock distributor gear?

Asked by: Noahofficial1999
Yes, if you are replacing a hydraulic roller camshaft.
Answered by: Rusty B
Date published: 2018-05-30
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WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

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Electrical Cords

WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.