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COMP Cams 12-511-5 Tight Lash Solid Flat Tappet Camshaft Chevrolet Small Block - 242/250

(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 + 238 more models)

Part of: COMP Cams Tight Lash Solid Flat Tappet Camshaft Chevrolet Small Block

Other options in this family: COMP Cams 12-505-5 COMP Cams 12-506-5 COMP Cams 12-504-5 COMP Cams 12-500-5

Manufacturer

Picture for manufacturer COMP Cams

Part Number

12-511-5
7 reviews
Sale Price

$325.95

Estimated ship date Wednesday, November 25

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Product Details

The COMP Cams 12-511-5 is a high-performance solid flat tappet camshaft designed specifically for Chevrolet Small Block engines. This tight lash camshaft features a 242/250 duration profile that delivers excellent mid-range torque and strong top-end power, making it ideal for street/strip applications and performance street builds.

Key Specifications:

  • Advertised Duration: 284°/292° intake/exhaust
  • Duration @ .050": 242°/250° intake/exhaust
  • Valve Lift: .488"/.491" intake/exhaust (with 1.5:1 rocker ratio)
  • Lobe Separation Angle: 110°
  • Tight lash design for improved valvetrain stability
  • Solid flat tappet design for maximum durability

Features & Benefits:

  • Optimized for engines with 9.0:1 to 10.5:1 compression ratios
  • Broad powerband from 1,500 to 6,000 RPM
  • Excellent throttle response and drivability
  • Compatible with stock torque converters and rear gear ratios
  • Requires hydraulic or solid lifters, performance valve springs, and proper break-in procedures

This camshaft is manufactured from premium materials using COMP Cams' precision grinding processes to ensure consistent performance and longevity. Perfect for hot street engines, mild bracket racing, and performance daily drivers seeking a noticeable improvement over stock.

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 + 234 more models

Advertised Exhaust Duration

280

Basic Operating RPM Range

2,700-6,200

Usage

Strip

Lifter Type

Solid Flat Tappet

Intake Valve Lift

0.51

Exhaust Valve Lift

0.53

Exhaust Duration at .050 inch Lift

250

Grind Number

272TLS-6

Camshaft Material

Cast Iron

Cam Type

Solid Flat Tappet

Camshaft Series

Tight Lash

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.

Advertised Intake Duration

272

Camshaft Gear Attachment

3-Bolt

Intake Duration at .050 Inch Lift

242

AMAZON ASIN

B000V9ET2A

LOBE SEPARATION

106

Engine Family

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

Great customer service. Fast order processing. Hassle free transaction.

Very fast shipping, received it Monday when I ordered it on Thursday. Thanks!

Fast shipping and best price on the web! I will be back and will recommend the site to friends.

Great price and fast shipping! If your looking for quality brands at the best price available!!<br>

I found my part easily (vent visors), checkout was simple, and I was notified the very next day that my item has been sent. The price (including shipping) was way lower than anywhere else online or in town.

Autoplicity is awsome!! lowest prices.. fast shipping great customer service.. this is hard to find in todays world!!

1st class service

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