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COMP Cams 1631-8 Ultra Gold ARC Rocker Arms 1.6 Ratio 3/8" Stud

(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

1631-8
14 reviews
Sale Price

$262.95

Estimated ship date Monday, November 23

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Fitment guaranteed

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Product Details

The COMP Cams 1631-8 Ultra Gold ARC rocker arms deliver professional-grade performance and durability for high-performance small block Chevy engines. These premium roller rocker arms feature a 1.6:1 rocker ratio and are designed for 3/8" rocker studs, providing increased valve lift compared to stock rockers for improved engine breathing and power output.

Key Features:

  • Full roller design with needle bearings for reduced friction and increased reliability
  • Ultra Gold ARC coating provides exceptional wear resistance and reduced friction
  • 1.6:1 rocker ratio increases valve lift without requiring a more aggressive camshaft
  • CNC-machined from premium aluminum alloy for strength and light weight
  • Fits 3/8" diameter rocker studs (7/16" stud girdle compatible)
  • Full-swing design accommodates high-lift camshafts and aggressive valve spring pressures
  • Self-aligning roller tip reduces valve guide and stem wear
  • Includes poly locks for secure rocker adjustment and retention

These rocker arms are ideal for street performance and racing applications where reliability and performance are critical. The full roller bearing design significantly reduces valvetrain friction compared to bronze bushing rockers, while the Ultra Gold coating ensures long-lasting performance even under extreme conditions.

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 Spring Diameter (in)

1.500 in.

Quantity

Sold as a set of 8.

Rocker Arm Body Style

Standard

Rocker Arm Finish

Natural

Rocker Arm Material

Chromemoly steel

Rocker Arm Mounting Style

Stud

Rocker Arm Nut Style

Polylock

Rocker Arm Style

Full roller

Self-Aligning

No

Shims Included

No

Slot Width (in)

0.562 in.

Stud Size

3/8 in.

Title

1631-8 Rocker Arms, FS/FW 1.6 3/8 Ultra Pro Mag

it was so easy to get credit thank you.

Thanks for the great deal!

Everything worked out great. I emailed about a refund for the item but later changed my mind and ended up keeping it. But what struck me as a pleasant surprise was the fact that I received a prompt reply saying that my options were open on whether or not I wanted to keep the shipment. The customer service agent was very respectful and communicative. I will be coming back for future purchases.

Good

Great job

Easy so far

great

Got the product quickly

Perfect fit - quick shipping

<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!

Best price around. Great Communication. Fast shipping. What else can I ask for?<br>I have already purchased again from them.

Autoplicity has a vast sea of parts (just what I needed)and the Shipping was fast and furious. Great Company. Thanks Tom.

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