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COMP Cams 1631-16 Ultra Pro Magnum 1.6 Ratio Rocker Arms Ford 289-351W

(Ford F-150 1975-95, Mustang 1964-95, F-250 1975-95, Bronco 1966-95, Thunderbird 1977-81, 1983-88, 1991-93, F-350 1975-95, Maverick 1971-77 + 92 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

1631-16
15 reviews
Sale Price

$524.95

3 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams Ultra Pro Magnum Rocker Arm Set delivers professional-grade performance for Ford small block engines. Engineered with a 1.6:1 rocker ratio, this set provides increased valve lift compared to stock 1.5 ratio rockers, helping maximize airflow and engine performance without changing your camshaft.

Key Features:

  • 1.6:1 rocker ratio for enhanced valve lift and performance
  • Ultra Pro Magnum design with needle bearing fulcrum for reduced friction and increased durability
  • Precision CNC-machined from high-strength aluminum alloy
  • Designed for Ford 289-351W small block V8 engines with 3/8" rocker studs
  • Self-aligning roller tip reduces valve guide and stem wear
  • Direct bolt-on replacement for factory stamped steel rockers
  • Complete set includes all 16 rocker arms needed for V8 application

These rocker arms are ideal for performance street engines, muscle car restorations, and weekend race applications where durability and consistent valve train operation are critical. The needle bearing design reduces friction compared to stock rockers while the precision machining ensures proper geometry for stable valve train operation throughout the RPM range.

Products specifications

Fits

Ford F-150 1975-95, Mustang 1964-95, F-250 1975-95, Bronco 1966-95, Thunderbird 1977-81, 1983-88, 1991-93, F-350 1975-95, Maverick 1971-77, Galaxie 500 1963-74, F-100 1975-83, F-250 Pickup 1972-95, Fairlane 1963-70, Ranchero 1965-79 + 87 more models

Maximum Valve Spring Open Pressure

850

AMAZON ASIN

B003HGPCHA

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

Rocker Stud Diameter

3/8

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

Rocker Arm Series

Ultra Pro Magnum

Engine Family

Ford 289-351W

It was very easy to order. Only issue was not given a dilevery date.

Good Service

Great

This was my first time. The seller keeps his promise. Delivery is really quick.

Fast and easy

All ok

QUICK AND EASY

<br><br>Borgeson 000940<br><br>I found Autoplicity during a price search on the Borgeson steering shaft for my truck. I had never heard of them, and was a bit skepticle. But after doing some research, found that Autoplicity has a good reputation on a Jeep forum I visit.<br><br>I decided to order, and I am impresed. Extremely fast shipping, I placed my order on Saturday, and its now Monday before noon. I am holding the new part!

Great prices

Quick shipping and they had the fuel jugs I needed for the best prices thanks!<br><br>UPDATE: they were so good I made another order with them within a week.

the part was in stock and for a good price

Great Pricing (lowest i can find anywhere) and Quick Shipping, Product has no damage from shipping! Thank you Autoplicity!

I received my ARP head studs as described and on time with zero problems, and cheaper than anywhere else.Will use again!!!

We ordered a cover for a pickup truck bed and were so pleased that it was shipped so quickly. The price was the lowest that we found on the internet or in any of the stores where we looked. We were notified by e-mail as soon as it shipped. We will definitely shop this site again.

First time buyer from Autoplicity and found the website easy to navigate and find what I wanted quickly. They had the best price of all the other sites I checked, including shipping.

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