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COMP Cams SK12-568-4 Nitrous HP Hydraulic Flat Tappet Camshaft Kit for Chevy Small Block

(GMC G2500 1979-94, Yukon 1992-94, K1500 1979-86, 1988-94, C1500 1979-86, 1988-94, K2500 1979-86, 1988-94, Jimmy 1970-91 + 214 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

SK12-568-4
9 reviews
Sale Price

$457.95

Estimated ship date Tuesday, November 24

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Product Details

The COMP Cams SK12-568-4 is a complete hydraulic flat tappet camshaft kit engineered for nitrous oxide applications in Chevrolet small block engines. This performance-oriented cam features aggressive duration specs of 240/253 degrees (advertised) designed to maximize power output when running nitrous systems while maintaining reliable street manners.

Camshaft Specifications:

  • Advertised Duration: 240? Intake / 253? Exhaust
  • Duration @ .050": 224? Intake / 230? Exhaust
  • Valve Lift: .510" Intake / .520" Exhaust (with 1.5 rocker ratio)
  • Lobe Separation Angle: 110?
  • Hydraulic flat tappet design for quiet operation and zero valve lash adjustment

Complete SK-Kit Includes:

  • Hydraulic flat tappet camshaft
  • High-quality hydraulic lifter set (16 lifters)
  • Precision timing chain set with gears
  • Assembly lube for proper break-in
  • COMP Cams decals
  • Detailed installation instructions

This camshaft is optimized for engines running nitrous oxide systems, providing excellent power gains from 2,500 to 6,500 RPM. The extended exhaust duration helps evacuate cylinder pressure efficiently when nitrous is activated. Ideal for street/strip applications where reliable performance and bolt-in convenience are priorities. Recommended for engines with 9.0:1 to 10.5:1 compression ratios and aftermarket intake manifolds.

Products specifications

Fits

GMC G2500 1979-94, Yukon 1992-94, K1500 1979-86, 1988-94, C1500 1979-86, 1988-94, K2500 1979-86, 1988-94, Jimmy 1970-91, C3500 1979-86, 1988-94, K2500 Suburban 1979-86, 1992-94, K3500 1979-86, 1988-94, C15/C1500 Pickup 1967-74 + 210 more models

Advertised Exhaust Duration

305

Advertised Intake Duration

284

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.507

Kit Type

SK-Kit - Small Kit

Exhaust Valve Lift

0.525

Basic Operating RPM Range

2,800-6800

Exhaust Duration at .050 inch Lift

253

Camshaft Material

Cast Iron

Camshaft Series

Nitrous HP

AMAZON ASIN

B001GEYMV2

Assembly Lubricant Included

Yes

Valve Springs Required

Yes

Lifter Type

Hydraulic Flat Tappet

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.

Gaskets Included

No

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

113

Locks Included

No

Intake Duration at .050 Inch Lift

240

Lifters Included

Yes

Retainers Included

No

Timing Chain and Gears Included

Yes

Usage

Street/Strip

Engine Family

Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)

Valve Stem Seals Included

No

Pushrods Included

No

excellent service, i had to wait a few days for the order to be processesed, but only because i ordered on Friday afternoon, but love the site!

Autoplicity was quick and easy to order from. I found just what I was looking for in absolutely no time at all, plus it was shipped extremely quickly. I would definitely order from this site/company again.<br><br>Thanks!

Easy, fast, and saved$$

excellent ship time and exceptional pricing deffinatly will buy from here again

Very nice transaction! Great doing business with you.

Fast shipping, product was excellent .

I ordered a hitch off of this site for Christmas, I have never heard of it nor did I know how they were, but they are great! Got my package in I'd say 4 days, very fast and it was exactly what I wanted! Only down fall was they charged me 3 times and I was short 150$ for a few days. I got my money back and I would definitely order again.

Smooth transaction, very pleased

They made a mistake with the shipping address, but, they took care of it very politely and professionally. Very nice. Thanks.

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