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COMP Cams 12-672-4 Nostalgia Plus Hydraulic Flat Tappet Camshaft SBC - 239/246

(GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-95, 1998, Jimmy 1970-91 + 245 more models)

Part of: COMP Cams Nostalgia Plus Hydraulic Flat Tappet Camshaft SBC

Other options in this family: COMP Cams 21-672-4 COMP Cams 21-671-4 COMP Cams 12-671-4 COMP Cams 12-670-4 COMP Cams 21-670-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-672-4
5 reviews
Sale Price

$309.95

4 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 12-672-4 Nostalgia Plus hydraulic flat tappet camshaft is designed specifically for Chevrolet Small Block engines seeking a classic muscle car sound with modern reliability. This camshaft delivers excellent throttle response and strong mid-range torque, making it ideal for street performance applications and weekend cruisers.

Camshaft Specifications:

  • Advertised Duration: 279°/286° (Intake/Exhaust)
  • Duration at .050": 239°/246° (Intake/Exhaust)
  • Valve Lift: .480"/.480" (with 1.5 ratio rockers)
  • Lobe Separation Angle: 110°
  • Hydraulic flat tappet design for quiet operation
  • Recommended RPM Range: 1,500-5,800 RPM

Key Features:

  • Part of COMP Cams proven Nostalgia Plus series for vintage performance builds
  • Excellent vacuum characteristics for power brakes and accessories
  • Smooth idle quality with a noticeable performance lope
  • Compatible with stock torque converters and rear gear ratios
  • Requires matching hydraulic flat tappet lifters (sold separately)

This camshaft works best with aftermarket intake manifolds, headers, and a performance ignition system. The 239/246 duration profile provides a great balance between streetability and performance, delivering strong acceleration without sacrificing drivability. Perfect for restomods, classic Camaros, Chevelles, and C10 trucks looking for that authentic muscle car experience.

Products specifications

Fits

GMC G2500 1979-95, Yukon 1992-95, K1500 1979-86, 1988-99, C1500 1979-86, 1988-99, K2500 1979-86, 1988-95, 1998, Jimmy 1970-91, Savana 2500 1996-2002, Savana 1500 1996-2002, C3500 1979-86, 1988-95, K2500 Suburban 1979-86, 1992-95 + 241 more models

Advertised Exhaust Duration

293

Advertised Intake Duration

286

Basic Operating RPM Range

2,300-6,500

Cam Type

Hydraulic Flat Tappet

Intake Valve Lift

0.483

Exhaust Valve Lift

0.477

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-672-4

K-Kit Upgrade

K12-672-4

Grind Number

N+30-30H

Camshaft Series

Nostalgia Plus

SK-Kit Upgrade

SK12-672-4

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifters Included

No

LOBE SEPARATION

112

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.

Camshaft Gear Attachment

3-Bolt

Exhaust Duration at .050 inch Lift

246

Intake Duration at .050 Inch Lift

239

AMAZON ASIN

B001O0FW94

Engine Family

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

Autoplicity had the lowest price by far and shipping was very fast (ordered Wednesday evening, arrived Saturday morning). I will definitely order from Autoplicity again!

good price hope shipping is as good

The part description was off by a mile, however the part number and the item recieved were exactly what I wanted and orderd. shipped fast, got parts in two days. Finaly got e-mail that parts had shipped 7 days after I had received the order, just a little slow in that regard. As long as I get the parts I orderd and quick shipping, cudos to Autoplicity.

Good products with low prices. Easy website and pament options.

Exact product as promised with the best price on the internet. Product shipped fast and had a tracking number to keep me up to date on my order. I would order from again without hesitation and will tell friends.

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