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COMP Cams 18-420-8 Magnum 215/215 Hydraulic Roller Camshaft for Chevrolet 4.3L V6

(GMC G2500 1985-95, Sonoma 1991-97, K1500 1985-86, 1988-97, C1500 1985-86, 1988-97, K2500 1985, 1988-95, Jimmy 1992-97, Savana 2500 1996-97 + 44 more models)

Part of: COMP Cams Magnum Hydraulic Roller Camshaft Ford

Other options in this family: COMP Cams 35-302-8 COMP Cams 35-410-8 COMP Cams 18-430-8 COMP Cams 18-412-8 COMP Cams 35-440-8

Manufacturer

Picture for manufacturer COMP Cams

Part Number

18-420-8
5 reviews
Sale Price

$577.95

In Stock (10)

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Usually delivered within 2 days

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Product Details

The COMP Cams 18-420-8 Magnum hydraulic roller camshaft is engineered specifically for Chevrolet 262ci (4.3L) V6 engines, delivering improved performance across the RPM range. This camshaft features a symmetric 215/215 duration profile that provides excellent throttle response and mid-range power without sacrificing low-end torque.

Key Specifications:

  • Advertised Duration: 268/268 degrees (intake/exhaust)
  • Duration @ .050": 215/215 degrees
  • Valve Lift: .420"/.420" (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 110 degrees
  • Hydraulic roller design for reduced friction and wear
  • Compatible with stock or aftermarket hydraulic roller lifters

Performance Benefits:

  • Smooth idle quality suitable for street applications
  • Broad, usable power band from 1,500 to 5,500 RPM
  • Excellent choice for trucks, SUVs, and daily drivers seeking improved performance
  • Works well with stock valve springs and components
  • Provides noticeable performance gains over factory camshafts

This camshaft is ideal for enthusiasts looking to upgrade their Chevy 4.3L V6 engine with a performance cam that maintains streetability and reliability. The hydraulic roller design ensures quiet operation and long service life while delivering measurable performance improvements.

Products specifications

Fits

GMC G2500 1985-95, Sonoma 1991-97, K1500 1985-86, 1988-97, C1500 1985-86, 1988-97, K2500 1985, 1988-95, Jimmy 1992-97, Savana 2500 1996-97, Savana 1500 1996-97, Safari 1985-97, C2500 1985-86, 1988-95, S15 1988-90, S15 Jimmy 1988-91 + 39 more models

Basic Operating RPM Range

1,800-5,000

Grind Number

270HR

Exhaust Duration at .050 inch Lift

215

Camshaft Material

Austempered Ductile Iron

Engine Family

Chevrolet 4.3L 262 c.i. 90 Degree 6 Cylinder (1980-1997)

Cam and Lifter Kit Upgrade

CL18-420-8

K-Kit Upgrade

K18-420-8

Camshaft Series

Magnum

SK-Kit Upgrade

SK18-420-8

AMAZON ASIN

B000P5B860

Assembly Lubricant Included

No

Lifters Included

No

LOBE SEPARATION

110

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.

Advertised Intake Duration

270

Camshaft Gear Attachment

3-Bolt

Exhaust Valve Lift

0.5

Lifter Type

Hydraulic Roller

Advertised Exhaust Duration

270

Cam Type

Hydraulic Roller

Intake Valve Lift

0.5

Usage

Street/Strip

Intake Duration at .050 Inch Lift

215

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 prices will shop here again.

Excellent on-line merchant with outstanding customer service and the best prices on equipment and shipping. Highly reccomended!

Good prices and easy ordering process (order #18003). The only issue that I had was after placing the order, completing the entire process, I received three emails stating that "We noticed that you started checking out on our site, but didn't quite finish the process". After calling customer service, they ensured me that the order was complete. Since then, I receive the same email(3 emails at a time) on a daily basis. Just a little annoying, but easy enough to delete.

Great site has alot of items in stock. Shipped promptly! Can't wait to do buisiness again.

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