My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

COMP Cams 1677-16 Ultra Pro Magnum 1.8 Ratio Rocker Arm Set LS1/LS2/LS6

(Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Corvette 2005-07, Silverado 2500 HD 2010-19, Tahoe 2000-14, Impala 2006-09 + 50 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

1677-16
14 reviews
Sale Price

$554.95

2 left at this price

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams Ultra Pro Magnum 1677-16 rocker arm set delivers high-performance valve train control for GM LS1, LS2, and LS6 engines. Featuring a 1.8:1 rocker ratio, this set provides increased valve lift compared to stock rockers, maximizing airflow potential for improved horsepower and torque output.

Key Features:

  • 1.8:1 rocker ratio for enhanced valve lift and performance
  • Engineered for pedestal mount LS engine platforms
  • Ultra Pro Magnum design with premium materials for durability
  • Precision-manufactured for accurate valve timing and geometry
  • Direct replacement for factory LS1, LS2, and LS6 rocker arms
  • Complete set includes all necessary rocker arms for full engine installation
  • Needle bearing design reduces friction and wear

This rocker arm set is ideal for street performance and race applications where increased valve lift is desired. The upgraded 1.8 ratio works with your existing camshaft to extract additional performance without requiring a complete cam swap. Designed and manufactured by COMP Cams, the industry leader in valve train components.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Suburban 1500 2000-14, Corvette 2005-07, Silverado 2500 HD 2010-19, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-08, Monte Carlo 2006-07, Avalanche 1500 2002-06 + 46 more models

Maximum Valve Spring Open Pressure

850

Rocker Stud Diameter

Pedestal Mount

AMAZON ASIN

B00N6LLWI4

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.

Rocker Arm Material

8650 Chromemoly Steel

Rocker Arm Ratio

1.8

Rocker Arm Series

Ultra Pro Magnum

Engine Family

LS1/LS2/LS6

No estimate on when the part will be shipped.

Excellent

Great experience.

Good price great quality

Simple and easy.

Order arrived 1 day sooner than expected with correct components. Did get multiple duplicate e-mails confirming order but when I e-mailed customer service to make sure my order was correct and charged appropriately they replied within a few hours. Overall I was pleased with price and service.

It is the way all on-line purchases should go. I got the item in 2 days, even before the email that it had shipped! Only negative is that the shipping cost was 35% the item cost. But it was still less that others with "free" shipping.

Easy, Great Price!

Very Good

thanks

Not sure if this is exactly what I need.

Couldnt order without logging into amazon

Easy purchase, and best price for what I was looking for, and shipping discount on top of that. Thanks again!

Just to put more info about the product being purchased

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy