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COMP Cams Xtreme Energy 268H Hydraulic Flat Tappet Camshaft Only Lift: .477" /.480" Duration: 268°/280° RPM Range: 1600-5800

249-12-242-2


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COMP Cams 12-242-2
$124.99
2 left in stock
Xtreme Energy 268H Hydraulic Flat Tappet Camshaft Only
Lift: .477''/.480''
Duration: 268°/280°
RPM Range: 1600-5800
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1965 CHEVROLET CHEVELLE

  • Liter: 4.6
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 283
  • Engine Type: V8 ( 4.6L / 283 )
  • Engine Vin: -

1976 CHEVROLET MALIBU

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

1984 GMC K2500

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

1976 GMC G25

  • Liter: 6.6
  • SubModel: RALLY
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 400
  • Engine Type: V8 ( 6.6L / 400 )
  • Engine Vin: U

1976 CHEVROLET MONZA

  • Liter: 2.3
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 140
  • Engine Type: L4 ( 2.3L / 140 )
  • Engine Vin: A

1970 CHEVROLET CAPRICE

  • Liter: 6.6
  • SubModel: BASE
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 400
  • Engine Type: V8 ( 6.6L / 400 )
  • Engine Vin: -

1982 CHEVROLET MALIBU

  • Liter: 3.8
  • SubModel: CLASSIC
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 231
  • Engine Type: V6 ( 3.8L / 231 )
  • Engine Vin: A

1980 CHEVROLET K10

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

1971 CHEVROLET CAMARO

  • Liter: 6.6
  • SubModel: SS
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 402
  • Engine Type: V8 ( 6.6L / 402 )
  • Engine Vin: -

1971 CHEVROLET EL CAMINO

  • Liter: 6.6
  • SubModel: CUSTOM
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 402
  • Engine Type: V8 ( 6.6L / 402 )
  • Engine Vin: K

1973 CHEVROLET CAPRICE

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

1982 CHEVROLET K5 BLAZER

  • Liter: 5
  • SubModel: SILVERADO
  • Aspiration: NATURALLY ASPIRATED
  • CUI: 305
  • Engine Type: V8 ( 5L / 305 )
  • Engine Vin: H
12-242-2 - Comp Cams 'Xtreme Energy' Hydraulic Flat Tappet Camshafts is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from #1 Mouse Motor Camshaft 307 sbc with many miles, Pull top end off , install..... -Early 60's 327 - 202 fuelly heads & springs -this XE Cam, lifters , pushrods, double roller -set of 1.6 ratio stamp steel rockers -X-Celerator IMCA open plenum intake -Flowtech shorty headers, and 2.5 " exhaust -Mechanical advance Mallory distributor, coil -1inch carb spacer, Edelbrock 500 for street For gas mileage and responsiveness low rpm Torque has choppy, lopy Idle, Cruze slowly to 2500 rpm in 1st and stomped the pedal, shifting at 4500 and everyone can't believe it, this little 307 runs em down with 3:43 gears, fun fun cheap to run screamer!!!
Date published: 2020-06-12
Rated 5 out of 5 by from I put this Xtreme energy cam in my 355 sb with a set of tricked out aluminum heads, lt put out 465 hp , l dropped this in my 71 Chevy k10 suburban, it turns heads and sounds with the choppy cam , and it pulls hard from 1600 to 6000 rpm. Thank you for a great product
Date published: 2018-01-31
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  • clientName_jegs

I have this cam in a 68 camaro with a 355 sbc Edelbrock performer RPM heads, performer rpm air gap intake, 650 speed Demon carb, headers and a 700 r4 trans with 3.73 gears. My question is what stall converter should I use. Thanks

Asked by: White as 68
This is a mild cam and you could use a stock converter or step up to a 1600 stall converter.
Answered by: Rusty B
Date published: 2018-12-09

Would this cam produce a noticeable idle, which I prefer. And at some later date I will be installing an ATI PB600 Procharger @ 9 PSI boost though a 650 Holley Double Pumper set up. Any suggestions or recommendations welcome.

Asked by: Steve McDaniel
I would not suggest using this cam with boost, there would too much over lap on this cam. I would look at their boost line cam for the such as 249-12-404-4.
Answered by: BrandonJ
Date published: 2019-01-27
  • y_2020, m_9, d_22, h_15CST
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