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COMP Cams 12-400-4 Blower Turbo Hydraulic Flat Camshaft 218/212 SBC

(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)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-400-4
5 reviews
Sale Price

$309.95

3 left at this price

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Usually delivered within 2 days

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Product Details

The COMP Cams 12-400-4 is a high-performance hydraulic flat tappet camshaft specifically designed for forced induction applications in Chevrolet Small Block engines. Engineered for use with blowers and turbochargers, this cam delivers exceptional performance characteristics that complement forced induction power delivery.

Camshaft Specifications:

  • Advertised Duration: 280°/280° intake/exhaust
  • Duration at .050": 218°/212° intake/exhaust
  • Valve Lift: .454"/.454" intake/exhaust (with 1.5 ratio rockers)
  • Lobe Separation Angle: 114°
  • Hydraulic flat tappet design for reliable operation
  • Optimized profile for forced induction engines

Key Features:

  • Broader torque curve ideal for boosted applications
  • Reduced overlap minimizes boost loss and improves low-end response
  • Works with stock or aftermarket cylinder heads
  • Compatible with stock valve springs and hydraulic lifters
  • Tight lobe separation angle maximizes cylinder pressure under boost

This camshaft provides excellent street manners while delivering strong performance when boost kicks in. The conservative duration and lift specs ensure compatibility with standard valve train components while the profile is optimized to work with superchargers and turbochargers. Ideal for street/strip applications running 6-12 psi of boost with pump gas or race fuel.

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

Advertised Exhaust Duration

260

Cam Type

Hydraulic Flat Tappet

Exhaust Valve Lift

0.444

Intake Valve Lift

0.454

Grind Number

268TH-15

Camshaft Material

Cast Iron

Usage

Street/Performance

Assembly Lubricant Included

Yes

Lifters Included

No

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.

Advertised Intake Duration

268

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

115

AMAZON ASIN

B001R99NVK

Basic Operating RPM Range

1,500-5,500

Exhaust Duration at .050 inch Lift

212

Intake Duration at .050 Inch Lift

218

Engine Family

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

Camshaft Series

Blower and Turbo

Good prices and easy to navigate

I paid for 2nd day shipping and 5 days later they were shipped out. So, I should receive my rotors in a full week from when I paid for 2 day shipping. I called customer service and they discounted the shipping rate to ground service. At least they were polite and helpful in the phone.

great experience, good price, item arrived within 4 days of purchase, would do business with again in future !

By far the lowest price i've seen on the web for what i have been trying to get, the Injen SRI for my juke. Great price fast shipping! Ill buy all my car stuff here from now on.

Easy order placement, fast shipment

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