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COMP Cams 12-670-4 Nostalgia Plus Hydraulic Flat Tappet Camshaft Duration - 211/218

(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 + 261 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 21-670-4 COMP Cams 12-672-4

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-670-4
6 reviews
Sale Price

$309.95

In Stock (10)

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Usually delivered within 2 days

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Product Details

The COMP Cams Nostalgia Plus 12-670-4 hydraulic flat tappet camshaft is engineered specifically for Chevrolet small block engines seeking a traditional performance upgrade with modern reliability. This camshaft delivers a smooth idle quality while providing excellent mid-range torque and horsepower gains, making it ideal for street/strip applications and classic muscle car restorations.

Camshaft Specifications:

  • Advertised Duration: 280°/288° intake/exhaust
  • Duration at .050": 211°/218° intake/exhaust
  • Valve Lift: .450"/.465" intake/exhaust (with 1.5 rocker ratio)
  • Lobe Separation Angle: 110°
  • Recommended RPM Range: 1,500-5,500
  • Hydraulic flat tappet design for quiet operation

Key Features:

  • Nostalgia Plus grind profile optimized for street performance with a classic sound
  • Excellent vacuum characteristics for power brakes and accessories
  • Compatible with stock valve springs and components in most applications
  • Precision-ground from high-quality core material for durability
  • Ideal for engines with stock to mildly modified cylinder heads

This camshaft provides a great balance between performance and drivability, offering noticeably improved throttle response and power without sacrificing street manners. Perfect for enthusiasts looking to enhance their small block Chevy with a proven, time-tested cam profile that delivers consistent results.

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 + 257 more models

Basic Operating RPM Range

1,000-5,500

Grind Number

N+300HP

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.42

Intake Valve Lift

0.426

Intake Duration at .050 Inch Lift

211

Camshaft Material

Cast Iron

Cam and Lifter Kit Upgrade

CL12-670-4

K-Kit Upgrade

K12-670-4

Camshaft Series

Nostalgia Plus

SK-Kit Upgrade

SK12-670-4

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

Advertised Exhaust Duration

265

AMAZON ASIN

B000R9VIJ6

Advertised Intake Duration

258

Exhaust Duration at .050 inch Lift

218

Engine Family

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

Best price. Received confirmation of shipment two days after placing order. Hoping to see product soon.

I ordered the wrong product and they have been very helpful in letting me exchange it for th right one

I spoke with the owner, awesome dude, told me he gets prices NOBODY else can! I just got notification that my items are shipping, so, I cannot review the actual product yet....but as far as pricing goes and communications....excellent! You gotta check this place out!! Jas. (&thanks for the extra incentives!!)

I ordered the part from Autoplicity and it arrived in time and is a great product<br>

Super fast shipping, in stock, good pricing. Very happy with this order.

a lot of their parts are the lowest price you can find. they will always be on my list of autopart dealers for every build

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