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COMP Cams 12-628-20 Xtreme Energy Solid Flat Tappet Camshaft for Chevy Small Block - 252/260

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91 + 240 more models)

Part of: COMP Cams Xtreme Energy Solid Flat Tappet Camshaft Chrysler

Other options in this family: COMP Cams 12-677-4 COMP Cams 12-676-4 COMP Cams 23-232-4 COMP Cams 12-674-4 COMP Cams 23-233-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-628-20
9 reviews
Sale Price

$406.95

Estimated ship date Friday, November 27

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Product Details

The COMP Cams 12-628-20 Xtreme Energy solid flat tappet camshaft is engineered for high-performance Chevrolet Small Block engines seeking aggressive street and strip performance. This camshaft features 252°/260° advertised duration with a .510"/.520" lift profile (with 1.5 ratio rockers), delivering excellent mid-range to top-end power for modified engines.

Key Features:

  • Advertised Duration: 252° intake / 260° exhaust
  • Duration at .050": 210° intake / 218° exhaust
  • Valve Lift: .510" intake / .520" exhaust (with 1.5:1 rockers)
  • Lobe Separation Angle: 110°
  • Solid flat tappet design for maximum durability and performance
  • Ideal for engines with 9.5:1 to 11.0:1 compression ratio
  • RPM Range: 1,500-6,000 RPM
  • Requires performance valve springs and solid lifters (not included)

This camshaft is designed for street/strip applications with modified cylinder heads, intake manifolds, and exhaust systems. It produces a noticeable performance idle and delivers strong acceleration. Professional installation and proper valvetrain components are recommended for optimal performance and reliability.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-95, C1500 1979-86, 1988-95, K2500 1979-86, 1988-95, Jimmy 1970-91, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95, K3500 1979-86, 1988-95, C15/C1500 Pickup 1967-74 + 236 more models

Advertised Intake Duration

279

Usage

Strip

Lifter Type

Solid Flat Tappet

Exhaust Valve Lift

0.51

Intake Valve Lift

0.51

Intake Duration at .050 Inch Lift

252

Exhaust Duration at .050 inch Lift

260

Grind Number

279MAS-6

Basic Operating RPM Range

3500-7,000

Camshaft Series

Max Area

Camshaft Material

Nitrided Cast Iron

Cam Type

Solid Flat Tappet

Assembly Lubricant Included

Yes

Lifters Included

No

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

Advertised Exhaust Duration

287

LOBE SEPARATION

106

AMAZON ASIN

B002EDYQT2

Engine Family

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

Awesome company to deal with! Had the best price I could find on the internet and then they even gave me 25% off my shipping cost. Ordering was easy and received delivery information with tracking quickly. I will for sure use them again!!<br><br>

good conditon! next time hopefully sooner

They had the parts I needed at the best price. I needed some questions answered to make sure I was ordering the right parts for a 4 year old car and they were very helpful when I called.

Very happy with customer service at autoplicity! Everyone helped me gather the much needed information to track my purchase! Congrats autoplicity!

Autoplicity has an abundance of name brand parts at unbeatable prices. Customer service was also great to deal with. Receipt and tracking info was provided promptly.

Autoplicity had fast shipping at a low price compared to other competitors. The price for the item itself was the lowest around so I think I got a good deal or my car. Would buy from again!

What a selection of items for your vehicle. When I called to confirm this company could actually ship an item others couldn't. Parts were available at the right price shipped quickly from one of there many warehouses.(not to mention the professional service from person who answered call) No waiting for this etailer. RECOMMENDED!Buy from tnis company!

Authentic, hard to find item listed for the least expensive price online! Good customer service and fast shipping time!!

Quick shipping. Good info on sttud will definitely irder again

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