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 1833-1 Ultra Pro Magnum XD Roller Rocker Arm Ratio Ford Small Block - 1.7

(Ford Mustang 1964-73, 1979, 1982-2011, Thunderbird 1977-81, 1983-88, 1991-93, Maverick 1971-77, Galaxie 500 1963-74, Fairlane 1963-70 + 43 more models)

Part of: COMP Cams Ultra Pro Magnum XD Roller Rocker Arm Ratio Ford Small Block

Other options in this family: COMP Cams 1834-1 COMP Cams 1831-1

Manufacturer

Picture for manufacturer COMP Cams

Part Number

1833-1
11 reviews
Sale Price

$52.95

In Stock (8)

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 1833-1 Ultra Pro Magnum XD roller rocker arm delivers professional-grade performance for Ford small block engines including 289, 302, and 351W applications. Featuring a 1.7:1 rocker ratio, this rocker arm increases valve lift over stock ratios to maximize airflow and engine performance.

Key Features:

  • 1.7:1 rocker ratio for increased valve lift and performance
  • Precision needle bearing design reduces friction and wear
  • Heavy-duty extruded aluminum body with bronze bushings
  • CNC-machined for exact tolerances and consistent geometry
  • Designed for 3/8" rocker arm studs
  • Self-aligning roller tip maintains proper valve alignment
  • Compatible with stock and aftermarket valve springs

The Ultra Pro Magnum XD series features COMP Cams' advanced roller bearing technology that provides smooth, low-friction operation for improved valvetrain stability at high RPM. The precision-machined aluminum body offers an excellent strength-to-weight ratio while the self-aligning roller tip ensures proper valve stem contact throughout the lift cycle. These rocker arms are engineered for enthusiasts seeking reliable performance gains in street, strip, and oval track applications.

Application: Ford small block V8 engines (289, 302, 351W) with 3/8" rocker studs.

Products specifications

Fits

Ford Mustang 1964-73, 1979, 1982-2011, Thunderbird 1977-81, 1983-88, 1991-93, Maverick 1971-77, Galaxie 500 1963-74, Fairlane 1963-70, Torino 1968-76, Mustang II 1975-78, Falcon 1964-70, Galaxie 1963-67, Gran Torino 1972-76 + 38 more models

AMAZON ASIN

B0066T1WYW

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

1.7

Rocker Arm Series

Ultra Pro Magnum XD

Engine Family

Ford 289-351W

Maximum Valve Spring Open Pressure

1000

I just placed an order, I cant really leave feedback yet?

gave me what i was looking exactly not offers like most sites.

easy

Great to order from shipping was fast and just awesome service will order from here again

So far so good

better price than anyone on eBay, and in stock and shipped immediately, paid one day had it the third day

simple quick and easy

did not have accurate pictures for product so have to go off of part number only product came on time and as expected at good price

Great prices for the parts I needed to replace on my SUV, a bit hard to reach customer service when I had a question about the order. When I finally did reach CS, question was answered without any issues, shipping costs seem a bit high.

Great prices!!

I ordered a rear sway bar for my MINI Cooper on Sunday and it was at my door on Wednesday! Autoplicity had the absolute cheapest price for this bar and I was very impressed with the shipping speed. I would definitely recommend them to my friends!

Share icon
Return Policy
Returns are easy at THMotorsports

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